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Campos FF, de Moura AC, Fernandez MDO, Marques AC, Pérez CD. Hydroids from a reef system under the influence of the Amazon River plume, Brazil. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106563. [PMID: 38801786 DOI: 10.1016/j.marenvres.2024.106563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/09/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
The Amazon Reef System (ARS) is one of the most important shallow and mesophotic reef ecosystems in the South Atlantic Ocean. The ARS consists mainly of extensive beds of calcareous algae interspersed by assemblages of octocorals and sponges. The enormous freshwater discharge from the Amazon River forms a plume along the extensive Amazon continental shelf, for which the hydroid community is still largely unknown. The aim of this study is to document the diversity and distribution of hydroids from the ARS, as well as to infer the influence of the plume on species composition in the different zones. Samples were collected at ninety-six stations between 15 and 240 m deep on the Amazon shelf. A total of 37 species were recorded in the studied area. Hydroid assemblages are richer in zones under lower river plume influence, and species composition differs significantly between zones with and without plume influence (PERMANOVA, p = 0.0025). The dissolved oxygen and nitrate ranges were the environmental variables significantly correlated with the hydroid distribution. This study is the first surveying the hydroid species composition and richness in the ARS, highlighting the presence of a typical reef biota and that further faunal studies in underexplored areas of the Atlantic should reveal the distribution of many poorly known hydroids species.
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Affiliation(s)
- Felipe Ferreira Campos
- Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto Do Reservatório, S/n, Bela Vista, Vitória de Santo Antão, Pernambuco, Brazil; Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Andreza Campos de Moura
- Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto Do Reservatório, S/n, Bela Vista, Vitória de Santo Antão, Pernambuco, Brazil; Programa de Pós-Graduação Em Biologia Animal, Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Moraes Rego, 1235, Recife, Pernambuco, Brazil
| | - Marina de Oliveira Fernandez
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, R. Matão, Trav 14, 101, 05508-090, São Paulo, SP, Brazil
| | - Antonio Carlos Marques
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, R. Matão, Trav 14, 101, 05508-090, São Paulo, SP, Brazil
| | - Carlos Daniel Pérez
- Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Rua Alto Do Reservatório, S/n, Bela Vista, Vitória de Santo Antão, Pernambuco, Brazil; Programa de Pós-Graduação Em Biologia Animal, Departamento de Zoologia, Centro de Biociências, Universidade Federal de Pernambuco, Av. Professor Moraes Rego, 1235, Recife, Pernambuco, Brazil
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Mescouto N, Peixoto UI, Trindade DG, Moura H, Bentes B. Caribbean red snapper fishing performance indicators in Brazilian amazon shelf: Is it the beginning of the end of a fishing system? PLoS One 2024; 19:e0300820. [PMID: 38691535 PMCID: PMC11062544 DOI: 10.1371/journal.pone.0300820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 03/05/2024] [Indexed: 05/03/2024] Open
Abstract
Red snapper fishing (Lutjanus purpureus) is an important fishing activity for the Brazilian economy due to its export. The scarcity of up-to-date information on this system's ecology, economy, and social characteristics contributes to inefficient management. We analyze whether the commercial snapper fishery on the Amazon continental shelf is socioecologically sustainable. For this, an assessment tool was used that can be applied to fishing systems with little data, the Fisheries Performance Indicators (FPI). The results showed that the critical points of this activity are mainly related to the Ecological indicator (2.3) and the Economic indicator (2.8). The best indicator was the Community (3.8). The problems that put at risk the permanence of the activity and its maintenance are: (i) fishing for juveniles; (ii) illegal vessels; (iii) lack of collaboration of the fishing sector with science, and (iv) unreliability of data supplied. All the points mentioned make the snapper fishery on the north coast of Brazil socio-ecologically unsustainable in the long term.
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Affiliation(s)
- Niedja Mescouto
- Postgraduate Program in Aquatic Ecology and Fisheries, Center for Aquatic Ecology and Fisheries in the Amazon, Laboratory of Fisheries Biology and Management of Aquatic Resources, Group for Ecology and Fisheries Management in the Amazon, Federal University of Pará, Belém, Pará, Brazil
| | - Ualerson Iran Peixoto
- Postgraduate Program in Aquatic Ecology and Fisheries, Center for Aquatic Ecology and Fisheries in the Amazon, Laboratory of Fisheries Biology and Management of Aquatic Resources, Group for Ecology and Fisheries Management in the Amazon, Federal University of Pará, Belém, Pará, Brazil
| | - Diego Gomes Trindade
- Postgraduate Program in Aquatic Ecology and Fisheries, Center for Aquatic Ecology and Fisheries in the Amazon, Laboratory of Fisheries Biology and Management of Aquatic Resources, Group for Ecology and Fisheries Management in the Amazon, Federal University of Pará, Belém, Pará, Brazil
| | - Hanna Moura
- Postgraduate Program in Aquatic Ecology and Fisheries, Center for Aquatic Ecology and Fisheries in the Amazon, Laboratory of Fisheries Biology and Management of Aquatic Resources, Group for Ecology and Fisheries Management in the Amazon, Federal University of Pará, Belém, Pará, Brazil
| | - Bianca Bentes
- Postgraduate Program in Aquatic Ecology and Fisheries, Center for Aquatic Ecology and Fisheries in the Amazon, Laboratory of Fisheries Biology and Management of Aquatic Resources, Group for Ecology and Fisheries Management in the Amazon, Federal University of Pará, Belém, Pará, Brazil
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3
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Lino JB, Laurino IRA, Longo PADS, Santos CSG, Motta FDS, Francini-Filho RB, Pereira-Filho GH. Proxies to detect hotspots of invertebrate biodiversity on rhodolith beds across the Southwestern Atlantic. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106431. [PMID: 38442590 DOI: 10.1016/j.marenvres.2024.106431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
Rhodolith beds are known worldwide to host high biodiversity to several taxa. Despite their importance, few ecological data explored the influence of rhodolith features and environmental variables on associated biodiversity, a gap that has been hampering the mapping of diversity hotspots and priority areas for conservation. In this study, we investigated large-scale spatial variations of rhodolith beds and their associated fauna, using annelid polychaetes as a biological model. We aimed to identify proxies, based on rhodolith features and environmental variables, to detect biodiversity hotspots across Southwestern Atlantic beds, laying the groundwork for mapping priority areas for conservation. With this goal, we sampled a total of 136 rhodolith nodules across seven sites with beds under distinct latitudes, depths, distances from the mainland coast of Brazil, and rhodolith densities. For each nodule sampled, we measured the volume, diameter, and mass of sediment trapped, as well as the attributes of the associated polychaetes (abundance, richness, diversity, and composition). Our results revealed a complex network of collinearities and synergisms between the rhodolith features and the majority of the polychaetes attributes (i.e., abundance, diversity, and composition). Polychaete richness, in contrast, can be explained by the combination of two proxies: (1) rhodolith nodule diameter and (2) distance of the rhodolith bed from the mainland coast. Nearshore rhodolith beds and larger nodules were associated with higher values of richness. Additionally, rhodoliths with a hollow morphology were also associated with higher values of polychaete richness. These results suggest that nearshore rhodolith beds with large and hollow nodules could be priority areas for conservation. However, further multi-taxa studies using our framework are still needed to explore other regions and scales, delineating more comprehensive proxies for predicting ecological patterns of the rhodoliths associated fauna and to identify priorities for conservation across Southwestern Atlantic beds.
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Affiliation(s)
- Jaqueline Barreto Lino
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Ivan Rodrigo Abrão Laurino
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Pedro Augusto Dos Santos Longo
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Cinthya Simone Gomes Santos
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal Fluminense, Rua: Professor Marcos Waldemar de Freitas Reis, s/n, Campus do Gragoatá, Bloco M, Sala 416, São Domingos, Niterói, RJ, CEP 24210-201, Brazil
| | - Fabio Dos Santos Motta
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil
| | - Ronaldo B Francini-Filho
- Laboratório de Biodiversidade e Conservação Marinha, Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, SP, 11612-109, Brazil
| | - Guilherme Henrique Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Rua Dr. Carvalho de Mendonça 144, Santos, 110-070, Brazil.
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Soares MO, Garcia TM, Giarrizzo T, Filho JEM, Tavares TCL, Ziveri P, Smith TB, Bejarano S, Teixeira CEP. Marine debris provide long-distance pathways for spreading invasive corals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165637. [PMID: 37490944 DOI: 10.1016/j.scitotenv.2023.165637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/12/2023] [Accepted: 07/16/2023] [Indexed: 07/27/2023]
Abstract
Anthropogenic marine debris and invasive species are pervasive in the ocean. However, research on the mechanisms and dynamics controlling their distribution in marine systems (e.g.; by floating debris acting as vectors for invasive species) is limited. Applying a numerical modeling approach, we demonstrate that rafting invasive corals (Tubastraea spp.) can be transported over long distances and reach important tropical receptor regions. In <180 days, buoyant debris can cover distances between 264 and 7170 km moving from the Brazilian semiarid coast to the Amazon coast and reaching eight regions in the Wider Caribbean (mainly the Eastern Caribbean and Greater Antilles). Analyzing 48 simulated scenarios (4 years × 3 depths × 4 months), we demonstrate that in ~86 % of the scenarios the particles are stranded in the Caribbean and in ~71 % they end up in the Amazon coast. Our results showed litter floating trajectories at 0-10 m water depth, transported every year to the Caribbean province. However, in August this transport is frequently blocked by the retroflection of the North Brazil Current adjacent to the Amazon River estuarine plume. Our results indicate routes for fast and long-distance transport of litter-rafting invasive species. We hypothesized a high risk of bioinvasion on important marine ecosystems (e.g., coral reefs) likely becoming increasingly threatened by these invasive species and debris. This highlights the imperative need for an ocean governance shift in prevention, control, and eradication, not only focused on local actions to prevent the spread of invasive species but also a broad international action to decrease and mitigate marine debris pollution globally.
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Affiliation(s)
- Marcelo O Soares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil; Reef Systems Research Group, Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany; Center for Marine and Environmental Studies (CMES), University of the Virgin Islands (UVI), Saint Thomas, Charlotte Amalie, United States of America.
| | - Tatiane M Garcia
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
| | - Tommaso Giarrizzo
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
| | - José Eduardo Martinelli Filho
- Centro de Estudos Avançados da Biodiversidade (CEABIO) and Instituto de Geociências, Universidade Federal do Pará (UFPA), Belém, PA, Brazil
| | - Tallita C L Tavares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
| | - Patrizia Ziveri
- Institute of Environmental Science and Technology (ICTA), Autonomous University of Barcelona (UAB), Bellaterra 08193, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, Barcelona 08010, Spain
| | - Tyler B Smith
- Center for Marine and Environmental Studies (CMES), University of the Virgin Islands (UVI), Saint Thomas, Charlotte Amalie, United States of America
| | - Sonia Bejarano
- Reef Systems Research Group, Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany
| | - Carlos Eduardo Peres Teixeira
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil; Institute of Environmental Science and Technology (ICTA), Autonomous University of Barcelona (UAB), Bellaterra 08193, Spain
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Castro GM, Vargens RP, Carlos-Júnior LA, Cardoso FC, Salomon PS, Tenório MMB, Bastos AC, Oliveira N, Ghisolfi RD, Cordeiro RTS, Moura RL. Incised valleys drive distinctive oceanographic processes and biological assemblages within rhodolith beds. PLoS One 2023; 18:e0293259. [PMID: 37956173 PMCID: PMC10642839 DOI: 10.1371/journal.pone.0293259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/09/2023] [Indexed: 11/15/2023] Open
Abstract
Continental shelves encompass gently sloped seascapes that are highly productive and intensively exploited for natural resources. Islands, reefs and other emergent or quasi-emergent features punctuate these shallow (<100 m) seascapes and are well known drivers of increased biomass and biodiversity, as well as predictors of fishing and other human uses. On the other hand, relict mesoscale geomorphological features that do not represent navigation hazards, such as incised valleys (IVs), remain poorly charted. Consequently, their role in biophysical processes remains poorly assessed and sampled. Incised valleys are common within rhodolith beds (RBs), the most extensive benthic habitat along the tropical and subtropical portions of the mid and outer Brazilian shelf. Here, we report on a multi-proxy assessment carried out in a tropical-subtropical transition region (~20°S) off Eastern Brazil, contrasting physicochemical and biological variables in IVs and adjacent RBs. Valleys interfere in near bottom circulation and function as conduits for water and propagules from the slope up to the mid shelf. In addition, they provide a stable and structurally complex habitat for black corals and gorgonians that usually occur in deeper water, contrasting sharply with the algae-dominated RB. Fish richness, abundance and biomass were also higher in the IVs, with small planktivores and large-bodied, commercially important species (e.g. groupers, snappers and grunts) presenting smaller abundances or being absent from RBs. Overall, IVs are unique and vulnerable habitats that sustain diverse assemblages and important ecosystem processes. As new IVs are detected by remote sensing or bathymetric surveys, they can be incorporated into regional marine management plans as conservation targets and priority sites for detailed in situ surveys.
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Affiliation(s)
- Guilherme M. Castro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rafaela P. Vargens
- Departamento de Biologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Lélis A. Carlos-Júnior
- Departamento de Biologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fernando C. Cardoso
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Paulo S. Salomon
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Márcio M. B. Tenório
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alex C. Bastos
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Natacha Oliveira
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Renato D. Ghisolfi
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Ralf T. S. Cordeiro
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Rodrigo L. Moura
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Voerman SE, Marsh BC, Bahia RG, Pereira-Filho GH, Becker ACF, Amado-Filho GM, Ruseckas A, Turnbull GA, Samuel IDW, Burdett HL. Dominance of photo over chromatic acclimation strategies by habitat-forming mesophotic red algae. Proc Biol Sci 2023; 290:20231329. [PMID: 37788706 PMCID: PMC10547552 DOI: 10.1098/rspb.2023.1329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/01/2023] [Indexed: 10/05/2023] Open
Abstract
Red coralline algae are the deepest living macroalgae, capable of creating spatially complex reefs from the intertidal to 100+ m depth with global ecological and biogeochemical significance. How these algae maintain photosynthetic function under increasingly limiting light intensity and spectral availability is key to explaining their large depth distribution. Here, we investigated the photo- and chromatic acclimation and morphological change of free-living red coralline algae towards mesophotic depths in the Fernando do Noronha archipelago, Brazil. From 13 to 86 m depth, thalli tended to become smaller and less complex. We observed a dominance of the photo-acclimatory response, characterized by an increase in photosynthetic efficiency and a decrease in maximum electron transport rate. Chromatic acclimation was generally stable across the euphotic-mesophotic transition with no clear depth trend. Taxonomic comparisons suggest these photosynthetic strategies are conserved to at least the Order level. Light saturation necessitated the use of photoprotection to 65 m depth, while optimal light levels were met at 86 m. Changes to the light environment (e.g. reduced water clarity) due to human activities therefore places these mesophotic algae at risk of light limitation, necessitating the importance of maintaining good water quality for the conservation and protection of mesophotic habitats.
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Affiliation(s)
- Sofie E. Voerman
- Lyell Centre for Earth and Marine Science and Technology, Edinburgh, UK
- School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, UK
| | - Beauregard C. Marsh
- Lyell Centre for Earth and Marine Science and Technology, Edinburgh, UK
- School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh, UK
| | - Ricardo G. Bahia
- Botanical Garden Research Institute of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Guilherme H. Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Santos, São Paulo, Brazil
| | - Ana Clara F. Becker
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Santos, São Paulo, Brazil
| | | | - Arvydas Ruseckas
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Graham A. Turnbull
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Ifor D. W. Samuel
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, UK
| | - Heidi L. Burdett
- Umeå Marine Sciences Centre, Umeå University, Norrbyn, Sweden
- Department of Ecology & Environmental Science, Umeå University, Umeå, Sweden
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Marques TS, Gutierrez G, Pina BP. A step back from oil exploration in Brazil. Science 2023; 381:1164. [PMID: 37708270 DOI: 10.1126/science.adj7307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Affiliation(s)
| | - Guilherme Gutierrez
- Laboratório de Ecologia Aplicada, Universidade de Sorocaba, Sorocaba, Brazil
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Villas-Boas AB, Tâmega FTS, Figueiredo MAO, Coutinho R. Photosynthetic responses of crustose coralline algae recruit from an upwelling area to light intensity, temperature and current flow rate in a mesocosm. MARINE ENVIRONMENTAL RESEARCH 2023; 190:106118. [PMID: 37531676 DOI: 10.1016/j.marenvres.2023.106118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/04/2023]
Abstract
The crustose coralline algae (CCA) play an important role building carbonate habitats and enhancing species diversity in rocky shores, rhodolith beds and coral-algal reefs. Though worldwide distributed some taxonomic groups were proved to show light and temperature boundaries. Nevertheless, little is known about the biological limits of CCA recruits and photosynthetic responses in a climate change environment. In this way, experimental studies are essential to identify their optimal conditions development. The aim of the study was to test ideal environmental conditions for CCA recruits from an upwelling area to verify Fv/Fm response patterns as an indicator of photosynthetic performance. Artificial disks were fixed on a rocky shore to provide substrate for CCA recruitments and then moved to be tested in a flow-through system. The CCA tested were species of the Genus Lithophyllum and experiments were performed with CCA exposed to different levels of light, temperature and current flow rates. The photosystem II function, measured by chlorophyll a fluorescence (Fv/Fm), was used as an indicator of potential photosynthetic electron transport. There was an interaction between light intensity, flow rate and temperature. Low light intensity, high temperature and fast flow rate (20 μmol m-2. s-1; 19 and 24 °C; 0.09 m s-1 respectively) provided optimal conditions for CCA recruits.
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Affiliation(s)
- A B Villas-Boas
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil.
| | - F T S Tâmega
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil
| | - M A O Figueiredo
- Instituto de Pesquisa Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, Jardim Botânico 22460-030, Rio de Janeiro, RJ, Brazil
| | - R Coutinho
- Instituto de Estudos do Mar Almirante Paulo Moreira, Departamento de Biotecnologia Marinha, 253, 28930-000, Arraial do Cabo, Rio de Janeiro, Brazil
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Tosetto EG, Neumann-Leitão S, Araujo M, Minto Dimoune D, Bertrand A, Nogueira Júnior M. Amazon River plume habitats shape planktonic cnidarian assemblages in the Western Atlantic. PLoS One 2023; 18:e0290667. [PMID: 37624787 PMCID: PMC10456164 DOI: 10.1371/journal.pone.0290667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
The impact of the Amazon River freshwater plume on planktonic cnidarians over neritic and oceanic provinces is unknown. To provide further knowledge we took advantage of an oceanographic cruise performed in October 2012 in the Western Atlantic off the North Brazilian coast (8°N, 51°W-3.5°S, 37°W). A complex and dynamic system was observed, with strong currents and eddies dispersing the plume over a large area. Our results show that the Amazon River shapes marine habitats with a thin highly productive surface layer compressed by a deeper oxygen minimum zone both over the shelf and in the open ocean. We hypothesized that such habitat structure is particularly advantageous to planktonic cnidarians, which have low metabolic rates, being able to survive in hypoxic zones, resulting in high species richness and abundance. Over the shelf, distinctions were sharp and the area under the influence of the plume presented a diverse assemblage occurring in large abundance, while outside the plume, the hydromedusa Liriope tetraphylla was dominant and occurred almost alone. Divergences in the oceanic province were less pronounced, but still expressive being mostly related to the abundance of dominant species. We concluded that Amazon River plume is a paramount physical feature that profoundly affects the dynamics of the mesoscale habitat structure in the Western Equatorial Atlantic Ocean and that such habitat structure is responsible for shaping planktonic cnidarian assemblages both in neritic and oceanic provinces.
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Affiliation(s)
- Everton Giachini Tosetto
- Institut de Recherche pour le Développement, Sète, France
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, France
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Moacyr Araujo
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Brazilian Research Network on Global Climate Change (Rede CLIMA), São José dos Campos, Brazil
| | | | - Arnaud Bertrand
- Institut de Recherche pour le Développement, Sète, France
- MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, Sète, France
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Brazil
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Miodeli Nogueira Júnior
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, Brazil
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Maggioni R, Rocha RS, Viana JT, Giarrizzo T, Rabelo EF, Ferreira CEL, Sampaio CLS, Pereira PHC, Rocha LA, Tavares TCL, Soares MO. Genetic diversity patterns of lionfish in the Southwestern Atlantic Ocean reveal a rapidly expanding stepping-stone bioinvasion process. Sci Rep 2023; 13:13469. [PMID: 37596337 PMCID: PMC10439126 DOI: 10.1038/s41598-023-40407-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023] Open
Abstract
In 2020, multiple lionfish (Pterois spp.) records along the equatorial Southwestern (SW) Atlantic revealed a new expansion of these potentially damaging invasive populations, which could impact over 3500 km of Brazilian coastline over the next few years, as well as unique ecosystems and marine protected areas in its path. To assess the taxonomic status, invasion route, and correlation with other centres of distribution, we investigated the genetic diversity patterns of lionfish caught in 2022 at the Amazonia, Northeastern Brazil, and Fernando de Noronha and Rocas Atoll ecoregions, using two molecular markers, the mitochondrial COI and the nuclear S7 RP1. The data indicate that all studied lionfish belong to what is generally accepted as P. volitans, and share the same genetic signature as lionfish present in the Caribbean Sea. The shared haplotypes and alleles indicate that the SW Atlantic invasion derives from an active movement of adult individuals from the Caribbean Sea into the Brazilian coast. The Amazon mesophotic reefs likely served as a stepping-stone to overcome the biogeographical barrier represented by the Amazon-Orinoco River plume. New alleles found for S7 RP1 suggest the onset of local genetic diversification, heightening the environmental risks as this bioinvasion heads towards other South Atlantic ecoregions.
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Affiliation(s)
- Rodrigo Maggioni
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil.
| | - Rafael S Rocha
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil
| | - Jhonatas T Viana
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil
| | - Tommaso Giarrizzo
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil
- Núcleo de Ecologia Aquática e Pesca da Amazônia (NEAP), Universidade Federal do Pará (UFPA), Belém, PA, Brazil
| | | | - Carlos E L Ferreira
- Laboratório de Ecologia e Conservação de Ambientes Recifais (LECAR), Departamento de Biologia Marinha, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | | | | | - Luiz A Rocha
- California Academy of Sciences, San Francisco, USA
| | - Tallita C L Tavares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil
| | - Marcelo O Soares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, Fortaleza, 3207, Brazil.
- Reef Systems Group, Leibniz Center for Tropical Marine Research (ZMT), Bremen, Germany.
- Center for Marine and Environmental Studies (CMES), University of the Virgin Islands (UVI), St. Thomas, US Virgin Islands.
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Soares MO, Pereira PHC, Feitosa CV, Maggioni R, Rocha RS, Bezerra LEA, Duarte OS, Paiva SV, Noleto-Filho E, Silva MQM, Csapo-Thomaz M, Garcia TM, Arruda Júnior JPV, Cottens KF, Vinicius B, Araújo R, Eirado CBD, Santos LPS, Guimarães TCS, Targino CH, Amorim-Reis Filho J, Santos WCRD, Klautau AGCDM, Gurjão LMD, Machado DAN, Maia RC, Santos ES, Sabry R, Asp N, Carneiro PBM, Rabelo EF, Tavares TCL, Lima GVD, Sampaio CLS, Rocha LA, Ferreira CEL, Giarrizzo T. Lessons from the invasion front: Integration of research and management of the lionfish invasion in Brazil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 340:117954. [PMID: 37119623 DOI: 10.1016/j.jenvman.2023.117954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/12/2023]
Abstract
After successful invasions in the Caribbean and Mediterranean, lionfish (Pterois spp.) have recently invaded another important biogeographical region -the Brazilian Province. In this article, we discuss this new invasion, focusing on a roadmap for urgent mitigation of the problem, as well as focused research and management strategies. The invasion in Brazil is already in the consolidation stage, with 352 individuals recorded so far (2020-2023) along 2766 km of coastline. This includes both juveniles and adults, including egg-bearing females, ranging in length from 9.1 to 38.5 cm. Until now, most of the records in the Brazilian coast occurred in the equatorial southwestern Atlantic (99%), mainly on the Amazon mesophotic reefs (15% of the records), northeastern coast of Brazil (45%), and the Fernando de Noronha Archipelago (41%; an UNESCO World Heritage Site with high endemism rate). These records cover a broad depth range (1-110 m depth), twelve protected areas, eight Brazilian states (Amapá, Pará, Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, and Pernambuco) and multiple habitats (i.e., mangrove estuaries, shallow-water and mesophotic reefs, seagrass beds, artificial reefs, and sandbanks), indicating a rapid and successful invasion process in Brazilian waters. In addition, the lack of local knowledge of rare and/or cryptic native species that are potentially vulnerable to lionfish predation raises concerns regarding the potential overlooked ecological impacts. Thus, we call for an urgent integrated approach with multiple stakeholders and solution-based ecological research, real-time inventories, update of environmental and fishery legislation, participatory monitoring supported by citizen science, and a national and unified plan aimed at decreasing the impact of lionfish invasion. The experience acquired by understanding the invasion process in the Caribbean and Mediterranean will help to establish and prioritize goals for Brazil.
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Affiliation(s)
- Marcelo O Soares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil; Reef Systems Group, Leibniz Center for Tropical Marine Research (ZMT), Bremen, Germany; Center for Marine and Environmental Studies (CMES), University of the Virgin Islands, Saint Thomas, United States Virgin Islands, USA.
| | - Pedro H C Pereira
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil; Projeto Conservação Recifal (PCR), Recife, Brazil
| | - Caroline V Feitosa
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Rodrigo Maggioni
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Rafael S Rocha
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Luis Ernesto Arruda Bezerra
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Oscar S Duarte
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Sandra V Paiva
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Eurico Noleto-Filho
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Maiara Queiroz M Silva
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Mayra Csapo-Thomaz
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | - Tatiane M Garcia
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | | | | | - Bruno Vinicius
- Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), Brazil
| | - Ricardo Araújo
- Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), Brazil
| | | | | | | | | | - José Amorim-Reis Filho
- ICHTUS Environment & Society, Salvador, BA, 41830-600, Brazil; Graduate Studies Program in Ecology: Theory, Application and Values, Federal University of Bahia, 40170-115, Brazil
| | | | | | - Lívio Moreira de Gurjão
- Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA), Fortaleza, Brazil
| | | | - Rafaela Camargo Maia
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE), Campus Acaraú, Ceará, Brazil
| | - Emanuel Soares Santos
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE), Campus Aracati, Ceará, Brazil
| | - Rachel Sabry
- Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE), Campus Aracati, Ceará, Brazil
| | - Nils Asp
- Universidade Federal do Pará (UFPA), Campus Bragança, Bragança, Brazil
| | | | | | - Tallita C L Tavares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil
| | | | | | - Luiz A Rocha
- California Academy of Sciences, San Francisco, USA
| | - Carlos E L Ferreira
- Laboratório de Ecologia e Conservação de Ambientes Recifais (LECAR), Departamento de Biologia Marinha, Universidade Federal Fluminense (UFF), Niterói, RJ, Brazil
| | - Tommaso Giarrizzo
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Avenida da Abolição, 3207, Fortaleza, Brazil; Núcleo de Ecologia Aquática e Pesca da Amazônia (NEAP), Universidade Federal do Pará (UFPA), Belém, PA, Brazil
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Costa DDA, Dolbeth M, Christoffersen ML, Zúñiga-Upegui PT, Venâncio M, de Lucena RFP. An Overview of Rhodoliths: Ecological Importance and Conservation Emergency. Life (Basel) 2023; 13:1556. [PMID: 37511931 PMCID: PMC10382044 DOI: 10.3390/life13071556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/23/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Red calcareous algae create bio-aggregations ecosystems constituted by carbonate calcium, with two main morphotypes: geniculate and non-geniculate structures (rhodoliths may form bio-encrustations on hard substrata or unattached nodules). This study presents a bibliographic review of the order Corallinales (specifically, rhodoliths), highlighting on morphology, ecology, diversity, related organisms, major anthropogenic influences on climate change and current conservation initiatives. These habitats are often widespread geographically and bathymetrically, occurring in the photic zone from the intertidal area to depths of 270 m. Due to its diverse morphology, this group offers a special biogenic environment that is favourable to epiphyte algae and a number of marine invertebrates. They also include holobiont microbiota made up of tiny eukaryotes, bacteria and viruses. The morphology of red calcareous algae and outside environmental conditions are thought to be the key forces regulating faunistic communities in algae reefs. The impacts of climate change, particularly those related to acidification, might substantially jeopardise the survival of the Corallinales. Despite the significance of these ecosystems, there are a number of anthropogenic stresses on them. Since there have been few attempts to conserve them, programs aimed at their conservation and management need to closely monitor their habitats, research the communities they are linked with and assess the effects they have on the environment.
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Affiliation(s)
- Dimítri de Araújo Costa
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
- ES-Inst-Environmental Smoke Institute, Rua Comerciante Antonio de Souza Lima, 25, Bairro Mangabeira, João Pessoa 58055-060, Paraíba, Brazil
| | - Marina Dolbeth
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Martin Lindsey Christoffersen
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
| | - Pamela Tatiana Zúñiga-Upegui
- GIZ-Grupo de Investigación en Zoología, Facultad de Ciencias, UT-Universidad del Tolima, Barrio Santa Helena Parte Alta Cl 42 1-02, Ibagué 730006299, Colombia
| | - Márcia Venâncio
- CIIMAR-Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal
| | - Reinaldo Farias Paiva de Lucena
- DSE-Department of Systematics and Ecology, CCEN-Center of Exact and Nature Sciences, UFPB-Federal University of Paraíba-Campus I, Cidade Universitária, João Pessoa 58050-585, Paraíba, Brazil
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13
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Rodrigues M. Oil from the Amazon? Proposal to drill at river's mouth worries researchers. Nature 2023; 619:680-681. [PMID: 37468817 DOI: 10.1038/d41586-023-02187-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
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14
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Bettcher L, Fernandez JCC, Gastaldi M, Bispo A, Leal CV, Leite D, Avelino-Alves D, Clerier PHB, Rezende D, Gulart CMR, Pinheiro U, Hajdu E. Checklist, diversity descriptors and selected descriptions of a highly diverse intertidal sponge (Porifera) assemblage at Costa do Descobrimento (Bahia, Brazil). Zootaxa 2023; 5277:443-489. [PMID: 37518309 DOI: 10.11646/zootaxa.5277.3.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Indexed: 08/01/2023]
Abstract
Costa do Descobrimento is located in southern Bahia, Brazil, and only 22 species of sponges (Porifera) were known from the area until now, despite its important reef formations. In the present study, we report a checklist of the sponges of Costa do Descobrimento and their distribution in the studied reefs, with several species illustrated in life. We also describe nine new sponge records for this region, some of which are new records for Brazil, or new records of species previously only poorly known. We present alpha and beta diversity indices and compare the sponge assemblage of the sampled locations. Four reefs were considered: two fringing reefs (Arraial D'Ajuda-AA and Coroa Vermelha / Mutá-CVM) and two offshore Municipal Marine Park "Parque Municipal Marinho- (P.M.M. Coroa Alta-CA and P.M.M. Recife de Fora-RF). A total of 229 specimens were collected (224 Demospongiae, 2 Homoscleromorpha and 3 Calcarea). These were classified in 101 morphotypes. Studied materials included representatives of 15 orders, 34 families and 48 genera. The richest orders are Haplosclerida (29 spp.), Poecilosclerida (15 spp.) and Tetractinellida (11 spp.). The richest families were Chalinidae (24 spp.), Clionaidae (7 spp.) and Mycalidae and Suberitidae (6 spp. each). The richest genus is, by far, Haliclona (20 spp.). Only 13 species were shared among all four reefs surveyed, namely Amphimedon viridis, Cinachyrella alloclada, C. apion, Cladocroce caelum, Cliona varians, Dysidea robusta, Mycale (Naviculina) diversisigmata, Niphates erecta, Spirastrella hartmani, Tedania (Tedania) ignis, Terpios fugax, Tethya bitylastra and T. maza. The reefs with the highest richness were CA and CVM, and the lowest richness was observed in RF. The most similar reefs in terms of species composition were CA and CVM, while AA and RF were more dissimilar to the previous reefs, but also from each other. While the difference among CA, CVM and AA was mainly explained by species turnover, RF differed from the previous based on its lower richness (nestedness component). Even though CA and CVM were the richest reefs, AA presented the highest number of exclusive species, highlighting the uniqueness of this reef, and urging the inclusion of local beachrock fringing reefs in a more holistic conservation strategy at Costa do Descobrimento.
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Affiliation(s)
- Larissa Bettcher
- Centro de Biociências; Departamento de Zoologia-Laboratório de Porifera-LABPOR; Universidade Federal de Pernambuco; Avenida Prof. Moraes Rêgo; 1235; 50670-901; Cidade Universitária; Recife; PE; Brazil; Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Julio C C Fernandez
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Marianela Gastaldi
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil; Departamento de Biología; Escuela Superior de Ciencias Marinas; Universidad Nacional del Comahue; San Martín 247; 8520 San Antonio Oeste; Río Negro; República Argentina; CONICET-Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos Almirante Storni; Güemes; 1030 San Antonio Oeste; República Argentina..
| | - André Bispo
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Camille V Leal
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil; Departamento de Genética; Centro de Ciências da Saúde; Universidade Federal do Rio de Janeiro; Av. Carlos Chagas Filho; 373; 21941-902; Cidade Universitária; Rio de Janeiro; RJ; Brazil..
| | - Dora Leite
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Dhara Avelino-Alves
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Pedro H B Clerier
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Dafinny Rezende
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Clara M R Gulart
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
| | - Ulisses Pinheiro
- Centro de Biociências; Departamento de Zoologia-Laboratório de Porifera-LABPOR; Universidade Federal de Pernambuco; Avenida Prof. Moraes Rêgo; 1235; 50670-901; Cidade Universitária; Recife; PE; Brazil.
| | - Eduardo Hajdu
- Departamento de Invertebrados; Museu Nacional; Universidade Federal do Rio de Janeiro; Quinta da Boa Vista; s/n; 20940-040; Rio de Janeiro; RJ; Brazil.
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Leal CV, Salani S, de Moraes FC, de Moura RL, Thompson FL, Hajdu E. Lost characters and lost taxonomists: Coelocarteriidae fam. nov., Poecilosclerida with and without chelae, to accommodate supposed phloeodictyids (Haplosclerida). INVERTEBR SYST 2023. [DOI: 10.1071/is22017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
The taxonomic study of Great Amazon Reef System sponges yielded three Oceanapia-like (Phloeodictyidae, Haplosclerida) species of similar gross morphology, two preliminarily identified as O. bartschi and another as Coelocarteria (Poecilosclerida), due to the presence of common palmate isochelae. The remarkable overall similarity of all three species in gross morphology necessitated an integrative assessment of the phylogenetic affinities. A selection of haplosclerid and poecilosclerid sequences (18S and 28S rRNA) was gathered from Genbank and compared to sequences mapped to reference from metagenome of two Oceanapia-like species from the Amazon River mouth, one of which matched O. bartschi. Both Brazilian species clustered with Coelocarteria singaporensis (Singapore). These species nest in the Poecilosclerida, far from Oceanapia (sp. and isodictyiformis) and other haplosclerids (Amphimedon, Petrosia, Siphonodictyon and Xestospongia) but also far from the poecilosclerid Isodictya that is currently classified in the same family as Coelocarteria, the Isodictyidae. Specimens with chelae are named Coelocarteria alcoladoi sp. nov. herein, while those without chelae represent the other two species. One matched Inflatella bartschi (O. bartchi’s holotype, here re-examined), thereby supporting the transfer of this species to Coelocarteria. The other is proposed as C. amadoi sp. nov. and is the second known lipochelous species in this genus. The 28S phylogenies recovered Coelocarteria bartschi comb. nov. (formerly Oceanapia bartschi) in the Poecilosclerida clade that clustered with Coelocarteria spp., including the type species of this genus, C. singaporensis, with 100% support. Coelocarteria alcoladoi sp. nov., also without chelae, grouped in the same clade, thereby corroborating the classification in this genus. The clade composed of Coelocarteria spp. grouped with Cornulella sp., suggesting an affinity between these genera. Coelocarteria is currently situated within Isodictyidae and Cornulella in Acarnidae. Isodictya (Isodictyidae) grouped with Amphilectus (Esperiopsidae) with high support and is only distantly related to Coelocarteria. Acarnus (Acarnidae) grouped with Clathria, also with high support, far from Coelocarteria and Cornulella. These results suggest the polyphyletic nature of Isodictyidae and Acarnidae, for which reason we preferred to propose a new, currently monotypic family for Coelocarteria spp., Coelocarteriidae fam. nov. ZooBank: urn:lsid:zoobank.org:pub:71FDB6FD-4A5F-4180-8DA7-79EA4CB615D1
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16
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Cordeiro RT, Carpinelli ÁN, Francini-Filho RB, Neves BDM, Pérez CD, de Oliveira U, Sumida P, Maranhão H, Monteiro LH, Carneiro P, Kitahara MV. Neospongodes atlantica, a potential case of an early biological introduction in the Southwestern Atlantic. PeerJ 2022; 10:e14347. [PMID: 36540794 PMCID: PMC9760029 DOI: 10.7717/peerj.14347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 10/16/2022] [Indexed: 12/23/2022] Open
Abstract
Soft corals (Anthozoa: Octocorallia) are discreet components in the Southwestern Atlantic reef communities. In Brazil, the native octocoral shallow-reef fauna is mostly represented by gorgonians. Consequently, except for the nephtheid Neospongodes atlantica, most of the known soft corals from this region are considered non-indigenous. Hitherto, the monotypic genus Neospongodes, which was proposed in the early 1900s, has been considered to be endemic to the Northeastern Brazilian coast. Herein, based on in situ records, we show that N. atlantica is a substrate generalist that has been probably expanding its distribution by dominating extensive shallow and mesophotic sandy and reef bottoms, generally outcompeting other reef benthic organisms, including Brazilian endemic species. Based on previously unidentified museum specimens, new records, and a broad literature review, we provide the most comprehensive modelling of the potential distribution of this species in the Southwestern Atlantic. Based on molecular inference supported by in-depth morphological analysis, the probable non-indigenous and, therefore, ancient introduction of N. atlantica in Brazilian waters is discussed. Finally, these results support that Neospongodes and the Indo-Pacific Stereonephthya are synonyms, which led us to propose the latter as taxonomically invalid.
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Affiliation(s)
- Ralf T.S. Cordeiro
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil,Department of Zoology (Invertebrate Zoology), National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States of America
| | - Ágatha Nascimento Carpinelli
- Programa de Pós-graduação em Biodiversidade e Ecologia Marinha e Costeira, Universidade Federal de São Paulo, Santos, São Paulo, Brazil
| | | | | | - Carlos D. Pérez
- Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Vitória de Santo Antão, Pernambuco, Brazil
| | - Umberto de Oliveira
- Programa de Pós-Graduação em Ecologia, Teoria, Aplicações e Valores, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Paulo Sumida
- Departamento de Oceanografia Biológica, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil
| | - Henrique Maranhão
- Programa de Pós-Graduação em Oceanografia, Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil
| | - Leonardo H.U. Monteiro
- IVIG, COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil,Grupo Sandmine & Inframar, Fortaleza, Ceará, Brazil
| | - Pedro Carneiro
- Universidade Federal do Delta do Paranaíba, Parnaíba, Piauí, Brazil
| | - Marcelo V. Kitahara
- Department of Zoology (Invertebrate Zoology), National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States of America,Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, São Paulo, Brazil
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17
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Rocha CMC, Sampaio CLS. A review of the knowledge of reef fish in the Southwest Atlantic. MARINE ENVIRONMENTAL RESEARCH 2022; 182:105769. [PMID: 36272222 DOI: 10.1016/j.marenvres.2022.105769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Reef environments are rapidly transforming worldwide, and these changes are causing major impacts to the reef ecosystem. Scientific knowledge is strategic for marine conservation and management in these scenarios. Aiming to contribute to this subject, a systematic review from 1967 to 2020 was conducted, in order to identify gaps in studies regarding reef fish species, ecosystem components and processes. Multidisciplinary sciences concerning reef fish have been rising, mainly in the fields of basic biology and ecology. Besides that, phase shifts and ecosystem services were absent terms in the analyzes of co-occurrence. Research in the ethnosciences needs to be increased, and will improve access to local ecological knowledge, which can be used as a tool to address issues in reef environments. Socio-ecological systems are components of this landscape that has had few publications. The participation in the elaboration of public policies can be a new avenue to foster the biodiversity of reef environments.
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Affiliation(s)
- Cacilda M C Rocha
- Programa de Pós-Graduação em Diversidade Biológica e Conservação nos Trópicos, Instituto de Biologia e Ciências da Saúde, Universidade Federal de Alagoas. Av. Lourival Melo Mota - Tabuleiro do Martins, Maceió, 57072-900, AL, Brazil; Laboratório de Ictiologia e Conservação, Universidade Federal de Alagoas. Av. Beira Rio, Centro Histórico, Penedo, 57200-000, AL, Brazil.
| | - Cláudio L S Sampaio
- Programa de Pós-Graduação em Diversidade Biológica e Conservação nos Trópicos, Instituto de Biologia e Ciências da Saúde, Universidade Federal de Alagoas. Av. Lourival Melo Mota - Tabuleiro do Martins, Maceió, 57072-900, AL, Brazil; Laboratório de Ictiologia e Conservação, Universidade Federal de Alagoas. Av. Beira Rio, Centro Histórico, Penedo, 57200-000, AL, Brazil.
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de Menezes TA, de Freitas MAM, Lima MS, Soares AC, Leal C, Busch MDS, Tschoeke DA, de O Vidal L, Atella GC, Kruger RH, Setubal J, Vasconcelos AA, de Mahiques MM, Siegle E, Asp NE, Cosenza C, Hajdu E, de Rezende CE, Thompson CC, Thompson FL. Fluxes of the Amazon River plume nutrients and microbes into marine sponges. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 847:157474. [PMID: 35868367 DOI: 10.1016/j.scitotenv.2022.157474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 06/14/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Sponges have co-evolved with microbes for over 400 myr. Previous studies have demonstrated that sponges can be classified according to the abundance of microbes in their tissues as Low Microbial Abundance (LMA) and High Microbial Abundance (HMA). While LMA sponges rely mainly on water column microbes, HMA appear to rely much more on symbiotic fermentative and autotrophic microbes maintained in their tissues. However, it is unclear if this pattern holds when comparing different species of tropical sponges under extreme nutrient conditions and sediment loads in the water column, such as the Great Amazon Reef System (GARS), which covers an area of ~56,000 km2 off the Amazon River mouth. Sponges are the major GARS benthic components. However, these sponges' microbiome across the GARS is still unknown. Here, we investigated water quality, isotopic values (δ13C and δ15N), metagenomic and lipidomic profiles of sponges obtained from different sectors throughout the GARS. >180 million shotgun metagenomic reads were annotated, covering 22 sponge species. Isotopic and lipidomic analyses suggested LMA sponges rely on the Amazon River Plume for nutrition. HMA sponges (N = 15) had higher Roseiflexus and Nitrospira abundance, whereas LMA sponges (N = 7) had higher Prochlorococcus and Pelagibacter abundance. Functional data revealed that the LMA sponge microbiomes had greater number of sequences related to phages and prophages as well as electron transport and photophosphorylation which may be related to photosynthetic processes associated with the Prochlorococcus and Synechococcus found in the LMA. The higher phages abundance in LMA sponges could be related to these holobionts' reduced defense towards phage infection. Meanwhile, HMA sponge microbiomes had higher Clustered Regularly Interspaced Short Palindromic Repeats-CRISPR abundance, which may be involved in defense against phage infection. This study sheds light on the nutrient fluxes and microbes from the Amazon River plume into the sponge holobionts.
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Affiliation(s)
- Tatiane A de Menezes
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Mayanne A M de Freitas
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Michele S Lima
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ana Carolina Soares
- Bioinformatics Laboratory, Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo, Brazil
| | - Camille Leal
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Mileane de S Busch
- Laboratory of Lipids Biochemistry and Lipoprotein, Biochemistry Institute Leopoldo de Meis, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Diogo A Tschoeke
- Biomedical Engineering Program - COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Luciana de O Vidal
- Environmental Sciences Laboratory, Biosciences and Biotechnology Center, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil; Department of Ecology and Marine Resources, Institute of Biosciences, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
| | - Georgia C Atella
- Laboratory of Lipids Biochemistry and Lipoprotein, Biochemistry Institute Leopoldo de Meis, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ricardo H Kruger
- Laboratory of Enzymology, University of Brasilia (UNB), Brasilia, Brazil
| | - João Setubal
- Bioinformatics Laboratory, Department of Biochemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo, Brazil
| | | | | | - Eduardo Siegle
- Oceanographic Institute (IO), University of São Paulo (USP), São Paulo, Brazil
| | - Nils Edvin Asp
- Federal University of Pará, Institute of Coastal Studies (IECOS), Bragança Campus, Bragança, PA, Brazil
| | - Carlos Cosenza
- Center of Technology - CT2, SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Eduardo Hajdu
- Department of Invertebrates, National Museum, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos E de Rezende
- Environmental Sciences Laboratory, Biosciences and Biotechnology Center, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil.
| | - Cristiane C Thompson
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Fabiano L Thompson
- Laboratory of Microbiology, Biology Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Center of Technology - CT2, SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
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Cordeiro CA, Aued AW, Barros F, Bastos AC, Bender M, Mendes TC, Creed JC, Cruz IC, Dias MS, Fernandes LD, Coutinho R, Gonçalves JE, Floeter SR, Mello-Fonseca J, Freire AS, Gherardi DF, Gomes LE, Lacerda F, Martins RL, Longo GO, Mazzuco AC, Menezes R, Muelbert JH, Paranhos R, Quimbayo JP, Valentin JL, Ferreira CE. Long-term monitoring projects of Brazilian marine and coastal ecosystems. PeerJ 2022; 10:e14313. [PMID: 36389402 PMCID: PMC9653053 DOI: 10.7717/peerj.14313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/06/2022] [Indexed: 11/11/2022] Open
Abstract
Biodiversity assessment is a mandatory task for sustainable and adaptive management for the next decade, and long-term ecological monitoring programs are a cornerstone for understanding changes in ecosystems. The Brazilian Long-Term Ecological Research Program (PELD) is an integrated effort model supported by public funds that finance ecological studies at 34 locations. By interviewing and compiling data from project coordinators, we assessed monitoring efforts, targeting biological groups and scientific production from nine PELD projects encompassing coastal lagoons to mesophotic reefs and oceanic islands. Reef environments and fish groups were the most often studied within the long-term projects. PELD projects covered priority areas for conservation but missed sensitive areas close to large cities, as well as underrepresenting ecosystems on the North and Northeast Brazilian coast. Long-term monitoring projects in marine and coastal environments in Brazil are recent (<5 years), not yet integrated as a network, but scientifically productive with considerable relevance for academic and human resources training. Scientific production increased exponentially with project age, despite interruption and shortage of funding during their history. From our diagnosis, we recommend some actions to fill in observed gaps, such as: enhancing projects' collaboration and integration; focusing on priority regions for new projects; broadening the scope of monitored variables; and, maintenance of funding for existing projects.
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Affiliation(s)
- Cesar A.M.M. Cordeiro
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Anaide W. Aued
- PELD Ilhas Oceânicas Brasileiras, Memorial University of Newfoundland, St John’s, Newfoundland, Canada
| | - Francisco Barros
- Laboratório de Ecologia Bentônica, IBIO & CIEnAM & INCT IN-TREE, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Alex C. Bastos
- PELD Abrolhos, Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Mariana Bender
- PELD Ilhas Oceânicas Brasileiras, Marine Macroecology and Conservation Lab, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Thiago C. Mendes
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Ecologia e Conservação de Ambientes Recitais, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil,PELD Ilhas Oceânicas Brasileiras, Instituto do Mar, Universidade Federal de São Paulo, Santos, São Paulo, Brazil
| | - Joel C. Creed
- Departamento de Ecologia, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Igor C.S. Cruz
- Laboratório de Oceanografia Biológica, Departamento de Oceanografia, Instituto de Geociências da Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Murilo S. Dias
- PELD Ilhas Oceânicas Brasileiras, Departamento de Ecologia, Universidade de Brasília, Brasília, Distrito Federal, Brazil
| | - Lohengrin D.A. Fernandes
- PELD Ressurgência de Cabo Frio, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Ricardo Coutinho
- PELD Ressurgência de Cabo Frio, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - José E.A. Gonçalves
- PELD Ressurgência de Cabo Frio, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - Sergio R. Floeter
- PELD Ilhas Oceânicas Brasileiras, Marine Macroecology and Biogeography Lab, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Juliana Mello-Fonseca
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Ecologia e Conservação de Ambientes Recitais, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Andrea S. Freire
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Crustáceos e Plâncton, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Douglas F.M. Gherardi
- PELD Ilhas Oceânicas Brasileiras, Laboratory of Ocean and Atmosphere Studies (LOA), Earth Observation and Geoinformatics Division, National Institute for Space Research (INPE), São José dos Campos, São Paulo, Brazil
| | - Luiz E.O. Gomes
- PELD Habitats Costeiros do Espírito Santo, Grupo de Ecologia Bêntica, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Fabíola Lacerda
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, Distrito Federal, Brazil
| | - Rodrigo L. Martins
- PELD Restingas e Lagoas Costeiras do norte do Estado do Rio de Janeiro, Instituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro, Brazil
| | - Guilherme O. Longo
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Ecologia Marinha, Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Ana Carolina Mazzuco
- PELD Habitats Costeiros do Espírito Santo, Grupo de Ecologia Bêntica, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Rafael Menezes
- PELD Ressurgência de Cabo Frio, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM), Arraial do Cabo, Rio de Janeiro, Brazil
| | - José H. Muelbert
- PELD Estuário da Lagoa dos Patos e Costa Marinha Adjacente, Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande, Rio Grande do Sul, Brazil
| | - Rodolfo Paranhos
- PELD Baía de Guanabara, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juan P. Quimbayo
- PELD Ilhas Oceânicas Brasileiras, Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, São Paulo, Brazil
| | - Jean L. Valentin
- PELD Baía de Guanabara, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos E.L. Ferreira
- PELD Ilhas Oceânicas Brasileiras, Laboratório de Ecologia e Conservação de Ambientes Recitais, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
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20
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Interconnected marine habitats form a single continental-scale reef system in South America. Sci Rep 2022; 12:17359. [PMID: 36253396 PMCID: PMC9576765 DOI: 10.1038/s41598-022-21341-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 09/26/2022] [Indexed: 01/10/2023] Open
Abstract
Large gaps in reef distribution may hinder the dispersal of marine organisms, interrupting processes vital to the maintenance of biodiversity. Here we show the presence and location of extensive reef habitats on the continental shelf between the Amazon Reef System (ARS) and the Eastern Brazilian Reef System (ERS), two reef complexes off eastern South America. Formations located 20-50 m deep include both biogenic and geogenic structures. The presence of diverse reef assemblages suggests the widespread occurrence of rocky substrates below 50 m. These habitats represent an expansion of both the ARS and ERS and the closure of the only remaining large-scale gap (~ 1000 km) among West Atlantic reef environments. This indicates that the SW Atlantic harbors a single, yet heterogeneous, reef system that stretches for about 4000 km, and thus, represents one of the largest semi-continuous tropical marine ecosystems in the world.
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21
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de Lima FA, Butturi-Gomes D, das Neves Pantoja MH, Martinelli-Lemos JM. Larval dispersal of Brachyura in one of the largest estuarine/marine systems in the world. PLoS One 2022; 17:e0252695. [PMID: 36007076 PMCID: PMC9410557 DOI: 10.1371/journal.pone.0252695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 04/20/2022] [Indexed: 11/18/2022] Open
Abstract
The Amazon Continental Shelf (ACS) is a complex habitat that receives a large annual freshwater discharge into the ocean, producing a superficial plume and carrying with it large amounts of nutrients to the continental shelf along thousands of kilometers while sustaining high biodiversity in the estuary–ocean continuum. For the first time, this study monitored six sites in a wide transect with approximately 240 km radius on the ACS every 2–4 months. The objectives were (1) to analyze the composition of larval Brachyuran crabs and (2) to predict the importance of environmental parameters (temperature, salinity and chlorophyll-a) in structuring their abundance. A total of 17,759 larvae identified were distributed in 8 families and 24 taxa. The water salinity was the best predictor of larval distribution. The statistical models used indicated that Panopeidae and Portunidae larvae are more frequent and more likely to occur in shallow water layers, while Calappidae occur in deeper layers, and Grapsidae, Ocypodidae, Sesarmidae, Pinnotheridae and Leucosiidae occur similarly in both strata. The larval dispersal extent varies among families and throughout the year while the groups are distributed in different salinities along the platform. The probability of occurrence of Portunidae is higher in ocean water (≥ 33.5); Grapsidae, Panopeidae, and Pinnotheridae is higher in intermediate and ocean salinity waters (25.5 to 33.5); Ocypodidae, Sesarmidae and Calappidae is higher in estuarine and intermediate salinity waters (5 to 25.5), whereas Leucosiidae, euryhaline, occur in all salinities (5 to 33.5). Furthermore, the Amazon River seasonal flow and plume movement throughout the year not only regulate the larval distribution and dispersion of estuarine species but are also fundamental for the ACS species, providing the necessary nutrient input for larval development in the region.
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Affiliation(s)
| | - Davi Butturi-Gomes
- Department of Mathematics and Statistics, Federal University of São João del-Rei, São João del-Rei, Minas Gerais, Brazil
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22
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Leal CV, Avelino-Alves D, Salazar V, Omachi C, Thompson C, Berlinck RGS, Hajdu E, Thompson F. Sponges present a core prokaryotic community stable across Tropical Western Atlantic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155145. [PMID: 35429557 DOI: 10.1016/j.scitotenv.2022.155145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Sponges are among the earliest lineages of metazoans, with first fossil records dated back to 890 million years ago. All sponge species present associations with microorganisms to some extension, which influence sponges' survival and adaptation. Sponge species can be divided into two categories, Low Microbial Abundance and High Microbial Abundance, depending on the abundance of the microbial community that they host. Monanchora arbuscula (a Low Microbial Abundance sponge species) and Xestospongia muta (a High Microbial Abundance sponge species) are sponges with widespread distribution in the Tropical Western Atlantic. Despite previous studies on the major features of these species, little is known whether M. arcuscula and X. muta prokaryotic communities are stable across vast geographic regions. We obtained a total of ~9.26 million 16S rRNA gene Illumina sequences for M. arbuscula samples collected at seven locations and for X. muta samples collected at three locations, corresponding to five ecoregions of the Caribbean and the Southwestern Atlantic (N = 105, 39 from M. arcuscula and 66 from X. muta). These samples reflected different ecological strategies for prokaryotic communities assembly, since the core prokaryotic communities of M. arbuscula are more heterotrophic and shared with different sources (corals, sponges, seawater, sediments), while X. muta has more significant photosynthetic prokaryotic communities, mainly outsourced from other sponges. Results of M. arbuscula and X. muta prokaryotic communities analysis demonstrate that both sponge species have core prokaryotic communities stable across a vast geographic area (> 8000 km), and the world's most notable coastal marine biogeographic filter, the Amazon River Mouth, in spite of the significant differences found among transient prokaryotic communities of both sponge species.
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Affiliation(s)
- Camille V Leal
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; SAGE-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Dhara Avelino-Alves
- Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Vinícius Salazar
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; SAGE-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Claudia Omachi
- Laboratório de Indicadores Ambientais, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Cristiane Thompson
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; SAGE-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970 São Carlos, SP, Brazil
| | - Eduardo Hajdu
- Departamento de Invertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fabiano Thompson
- Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; SAGE-COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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23
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Souza-Araujo JD, Hussey NE, Hauser-Davis RA, Rosa AH, Lima MDO, Giarrizzo T. Human risk assessment of toxic elements (As, Cd, Hg, Pb) in marine fish from the Amazon. CHEMOSPHERE 2022; 301:134575. [PMID: 35421445 DOI: 10.1016/j.chemosphere.2022.134575] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 03/21/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
The present study evaluated As, Hg, Pb and Cd burdens in both ecologically and commercially important 314 marine fishes belonging to 47 species sampled along the Amazon Coast. We specifically investigated variations in these four elements among different habitats and their relationships with trophic position and estimated potential human health risk by calculating the hazard quotient (HQ), hazard index (HI), and target cancer risk (TR). Our analyses revealed that Hg concentrations in reef-associated fish were over 2-fold those recorded in demersal fish (p < 0.001). A stable isotope analysis indicated that most of the fish species analyzed herein are secondary consumers (i.e., TP > 2.9) and their trophic positions exhibited a significant negative correlation to As, Pb and Cd. Positive significant relationships were noted between As-Cd, As-Pb, As-Hg, Hg-Cd and Cd-Pb, suggesting that these elements exhibit similar dispersion properties and bioaccumulation homology, probably arising from natural fluvial inputs from the Amazon basin system. Detected As concentrations were higher than established guidelines and legal limits in 63.8% of the examined species (n = 30), whereas Cd, Hg and Pb levels were generally very low. Estimated daily intake (EDI) of iAs, Hg and Pb were above reference dose (RfD) in more almost half of species analyzed and HQ values were each found to pose potential non-carcinogenic health risks if high amounts are consumed over time. HI indicates that the determined elements attained levels considered as potential human health hazards trough consumption of eight cartilaginous fish. The TR values of iAs and Pb were higher than the guideline value and given this, individuals who continuously consume cartilaginous fish contaminated with the toxic elements determined here will likely be under increased cancer risks in the long term.
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Affiliation(s)
- Juliana de Souza-Araujo
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia do Guamá, Belém, PA, Brazil; Laboratório de Biogeoquímica Ambiental. Instituto de Ciência e Tecnologia, Universidade Estadual Paulista, Sorocaba, SP, Brazil.
| | - Nigel E Hussey
- Integrative Biology. University of Windsor, Windsor, Ontario, Canada.
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.
| | - André Henrique Rosa
- Laboratório de Biogeoquímica Ambiental. Instituto de Ciência e Tecnologia, Universidade Estadual Paulista, Sorocaba, SP, Brazil.
| | | | - Tommaso Giarrizzo
- Grupo de Ecologia Aquática, Espaço Inovação do Parque de Ciência e Tecnologia do Guamá, Belém, PA, Brazil; Instituto de Ciencias do Mar (LABOMAR), Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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de Carvalho RT, Rocha GM, Karez CS, da Gama Bahia R, Pereira RC, Bastos AC, Salgado LT. Global assessment of coralline algae mineralogy points to high vulnerability of Southwestern Atlantic reefs and rhodolith beds to ocean acidification. Sci Rep 2022; 12:9589. [PMID: 35688967 PMCID: PMC9187768 DOI: 10.1038/s41598-022-13731-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 05/12/2022] [Indexed: 11/09/2022] Open
Abstract
Coralline algae constitute one of the main groups of highly vulnerable calcified benthic organisms to ocean acidification. Although damaging effects of seawater acidification on the coralline algae skeleton have been widely demonstrated, the susceptibility to dissolution varies according to the Mg2+ in the calcite lattice. Even though the Southwest Atlantic Ocean exhibits the world's largest rhodolith beds, which occupies 20,902 km2, there is no information regarding the coralline algae species mineralogy in this area. Here, we provide mineralogical data of twenty-four coralline algae species, examine the similarity in taxonomic groups, spatial occurrence and the vulnerability of these algae to seawater acidification. Mineralogy revealed that coralline algae skeletons were mainly composed of high-Mg calcite (> 70%) with minor presence of aragonite (< 30%) and dolomite (< 3%). There were no similarities between the skeletal mineralogy of taxonomic groups and sampling regions. Remarkably, the mean Mg-substitution of encrusting coralline algae from the Brazilian Shelf was 46.3% higher than global average. Because of the higher mean Mg-substitution in calcite compared with worldwide coralline algae, these algae from Southwest Atlantic Ocean would be highly susceptible to dissolution caused by the expected near-future ocean acidification and will compromise CaCO3 net production across the Brazilian Shelf.
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Affiliation(s)
- Rodrigo Tomazetto de Carvalho
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Gustavo Miranda Rocha
- Instituto de Biofísica Carlos Chagas Filho, CCS-Centro de Ciências da Saúde, Cidade Universitária, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Claudia Santiago Karez
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Ricardo da Gama Bahia
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Renato Crespo Pereira
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil
| | - Alex Cardoso Bastos
- Departamento de Ecologia e Recursos Naturais, Centro de Ciências Humanas e Naturais, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514 Goiabeiras, Vitória, ES, CEP 29055-460, Brazil
| | - Leonardo Tavares Salgado
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro, RJ, CEP 22460-030, Brazil.
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25
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Western boundary currents drive sun-coral (Tubastraea spp.) coastal invasion from oil platforms. Sci Rep 2022; 12:5286. [PMID: 35347218 PMCID: PMC8960833 DOI: 10.1038/s41598-022-09269-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/16/2022] [Indexed: 11/08/2022] Open
Abstract
Most marine species have a planktonic larval phase that benefit from the surface oceanic flow to enhance their dispersion potential. For invasive species, the interaction of environmentally resistant larvae with different flow regimes and artificial substrates can lead to complex larval dispersion patterns and boost geographic expansion. In the Southwest Atlantic, the invasive corals Tubastraea spp. (sun-coral) have been recorded biofouling on oil platforms since the late 1980s. These platforms are considered important vectors for the established populations throughout the Brazilian coast. However, we still do not know how the position of these structures relative to regional flow contribute to the natural dispersion potential of these invaders on a regional scale. Herein, we used an eddy-resolving ocean model (ROMS) and an Individual Based Model (IBM-Ichthyop) to simulate the natural dispersion patterns of sun-coral larvae from all oil platforms on Brazilian oil-producing basins, for the austral summer and winter along 6 years (2010–2015) in 90-day simulations. We found that mortality rates by advection were significantly higher during the winter (p = 0.001) and when sources of larvae were compared throughout this season (p = 1.9 × 10–17). The influence of two western boundary currents and persistent eddy activity contribute to the dispersal of larvae to distances up to 7000 km. The effectiveness of each oil-producing basin as vectors for the entire Brazilian coastline, measured as the percentage of larval supply, highlights the importance of the northern Ceará (59.89%) and Potiguar (87.47%) basins and the more central Camamu (44.11%) and Sergipe-Alagoas (39.20%) basins. The poleward shift of the Southern branch of the South Equatorial Current during the winter causes larvae released from the Sergipe-Alagoas and Camamu basins to enter the North Brazil Current, expanding their dispersion towards the north. The Brazil Current disperses larvae southwards, but strong mesoscale activity prevents their dispersion to the coast, especially for those released from the oil platforms on Campos and Santos basins. Within this complex hydrodynamic setting, a few source areas, like those in the Sergipe-Alagoas and Camamu basins, can potentially contribute to the spread of larvae along nearly all the Brazilian coast. Therefore, oil platforms act as possible chronic sources of sun-coral propagules to the coast, emphasizing the urgency for a more detailed set of actions to control and monitor these invasive exotic species.
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Fernandes L, Jesus H, Almeida P, Sandrini J, Bianchini A, Santos H. The influence of the Doce River mouth on the microbiome of nearby coastal areas three years after the Fundão Dam failure, Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:151777. [PMID: 34808168 DOI: 10.1016/j.scitotenv.2021.151777] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 10/14/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
The failure of the Fundão Dam, considered the world's largest mining disaster, released more than 55 million m3 of ore tailings into the environment. The sediment plume formed by water and tailings spread along approximately 663 km of water bodies of the Doce River basin. It reached the Atlantic Ocean sixteen days after the dam failure. However, the effects of the dam failure in the marine coastal areas years after the disaster are still unknown. This study aims to evaluate water and sediment microbial communities of nearby coastal areas three years after the Fundão Dam failure, using 16S rRNA gene amplicon sequencing. A total of 441 samples from 25 locations were collected during two different seasons (dry and rainy). The results showed that the Doce River mouth seems to divide the microbial communities from the southern and northern stations into two groups. The plume of sediments from the Doce River seems to be impacting the marine microbiome even at the furthest sampling stations. Bacterial (Anaerolineaceae, Thermodesulfovibrionia and Rhodopirellula) and Archaeal (Bathyarchaeia and Woesearchaeia) taxa, found in high abundance in the sediment of the Doce River mouth, have been previously described in high abundance in heavy metal contaminated sediments, including the Doce River itself and in mine tailing sediments. Cyanobium, found in great abundance in the water samples from the Doce River mouth, was also reported as the most abundant in the water of the Doce River after the Fundão Dam failure. Overall, the farther from the Doce River mouth the sample was, the lower the relative abundances of these taxa were. These results provide strong evidence that the sediment plume released by the Fundão Dam failure is probably impacting the marine microbiome of nearby coastal areas, even three years after the dam failure.
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Affiliation(s)
- Luanny Fernandes
- Department of Marine Biology, Fluminense Federal University - UFF, St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ 24210-201, Brazil
| | - Hugo Jesus
- Department of Marine Biology, Fluminense Federal University - UFF, St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ 24210-201, Brazil
| | - Pedro Almeida
- Department of Marine Biology, Fluminense Federal University - UFF, St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ 24210-201, Brazil
| | - Juliana Sandrini
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, s/n, Carreiros, Rio Grande, RS 96203-900, Brazil
| | - Adalto Bianchini
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande - FURG, Av. Itália, s/n, Carreiros, Rio Grande, RS 96203-900, Brazil; Coral Vivo Institute, Rio de Janeiro, Brazil
| | - Henrique Santos
- Department of Marine Biology, Fluminense Federal University - UFF, St. Professor Marcos Waldemar de Freitas Reis, Niterói, RJ 24210-201, Brazil; Coral Vivo Institute, Rio de Janeiro, Brazil.
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Giachini Tosetto E, Bertrand A, Neumann-Leitão S, Nogueira Júnior M. The Amazon River plume, a barrier to animal dispersal in the Western Tropical Atlantic. Sci Rep 2022; 12:537. [PMID: 35017566 PMCID: PMC8752809 DOI: 10.1038/s41598-021-04165-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/03/2021] [Indexed: 11/09/2022] Open
Abstract
The dispersal of marine organisms can be restricted by a set of isolation mechanisms including hard barriers or hydrological features. In the Western Atlantic Ocean, the Amazon River discharge has been shown to act as a biogeographical barrier responsible for the differences in reef fish communities between Caribbean Sea and Northeast Brazil continental shelves. Here, we compare the diversity of all Animalia phyla from biogeographic ecoregions along the Tropical Western Atlantic continental shelf to test the hypothesis that the Amazon River plume spatially structures species diversity. For that, we used beta diversity estimators and multivariate ecological analysis on a database of species occurrence of the whole animal kingdom including 175,477 occurrences of 8,375 species from six ecoregions along the Western Tropical Atlantic. Results of the whole animal kingdom and the richest phyla showed that the Caribbean Sea and Tropical Brazil ecoregions are isolated by the Amazon River Plume, broadening and confirming the hypothesis that it acts as a soft barrier to animal dispersal in the Western Tropical Atlantic. Species sharing is larger northwestwards, in direction of the Caribbean than the opposite direction. Beyond species isolation due to local characteristics such as low salinity and high turbidity, our results suggest the dominant northwestward currents probably play a major role in animal dispersion: it enhances the flux of larvae and other planktonic organisms with reduced mobility from Brazil to Caribbean and hinders their contrary movement. Thus, the Amazon area is a strong barrier for taxa with reduced dispersal capacity, while species of pelagic taxa with active swimming may transpose it more easily.
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Affiliation(s)
- Everton Giachini Tosetto
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil. .,Institut de Recherche pour le Développement, MARBEC, Université Montpellier, CNRS, IFREMER, IRD, 34200, Sète, France.
| | - Arnaud Bertrand
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil.,Institut de Recherche pour le Développement, MARBEC, Université Montpellier, CNRS, IFREMER, IRD, 34200, Sète, France.,Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, 52171-900, Brazil
| | - Sigrid Neumann-Leitão
- Departamento de Oceanografia, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Miodeli Nogueira Júnior
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB, 58051-900, Brazil
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TORRES ANALAURAR, PARISE CLAUDIAK, PEZZI LUCIANOP, QUEIROZ MICHELLYGDOSSANTOS, MACHADO ADILSONM, CERVEIRA GABRIELS, CORREIA GUSTAVOS, BARBOSA WESLEYL, LIMA LEONARDOGDE, SUTIL UESLEIA. Lagged response of Tropical Atlantic Ocean to cold and fresh water pulse from Antarctic sea ice melting. AN ACAD BRAS CIENC 2022; 94:e20210800. [DOI: 10.1590/0001-3765202220210800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/28/2021] [Indexed: 11/21/2022] Open
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Machado AA, Moraes FCD, Aguiar AA, Hostim-Silva M, Santos LN, Bertoncini ÁA. Rocky reef fish biodiversity and conservation in a Brazilian Hope Spot region. NEOTROPICAL ICHTHYOLOGY 2022. [DOI: 10.1590/1982-0224-2022-0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract Coastal islands of Grande Rio, located south Rio de Janeiro and Maricá cities have been under multiple anthropogenic impacts. Despite these problems, these insular systems shelter a high diversity of fish species. Reef fishes are essential components of tropical marine coastal communities, also providing food and income for millions of people around the world. In this work, we generated an updated checklist from Cagarras Islands Natural Monument and surrounding areas based on fisheries data, literature records and multiple sampling techniques, including the Submersible Rotating Video technique, used for the first time in Brazil. We present an inventory of 282 fish species representing 91 different families, with 21 new records for the study area, including a non-native species (Heniochus acuminatus). In addition, our results show a moderate endemism level for the Brazilian province (approximately 6.0%), while 10.5% of species are assigned to one of IUCN’s threatened categories. Our efforts show the fish biodiversity scenario and their distribution on coastal islands more than 10 years after the Cagarras Islands Natural Monument establishment, reinforcing the importance of monitoring research programs for the management of this Marine Protected Area and surrounding waters, that play a key role for artisanal fisheries.
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Affiliation(s)
- Augusto A. Machado
- Universidade Federal do Espírito Santo, Brazil; Instituto Mar Adentro, Brazil
| | | | | | | | - Luciano N. Santos
- Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Brazil; Universidade Federal do Estado do Rio de Janeiro, Brazil
| | - Áthila A. Bertoncini
- Instituto Mar Adentro, Brazil; Universidade Federal do Estado do Rio de Janeiro, Brazil; Universidade Federal de Santa Catarina, Brazil
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Understanding the Impacts of Blue Economy Growth on Deep-Sea Ecosystem Services. SUSTAINABILITY 2021. [DOI: 10.3390/su132212478] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The deep sea is the vastest environment on Earth and provides many services and goods. Understanding the services and goods of deep-sea ecosystems would enable better resource governance and decision-making. In the present study, we reviewed and assessed deep-sea ecosystems services using the Ma conceptual framework, which incorporates ecosystems services and goods with human welfare. We also analyzed and measured the scientific production between 2012 and 2021 using the Dimension dataset. The bibliometric analysis showed a lack of studies related to deep-sea ecosystem services, which suggest the urgent need to overcome the existing knowledge gap regarding deep-sea components. However, the current knowledge revealed the crucial role that these ecosystems provide to the planet. Furthermore, we highlighted that there are common services and goods, and every ecosystem service feeds into another one. Developing actions and policies based on approaches that combine all deep-sea ecosystems services and goods are needed for the sustainable growth of the deep-sea economy in accordance with the United Nations Development Goal 14: Life Below Water.
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Dornellas AP, Graboski R, Hellberg ME, Lotufo TMC. Phylogeography of
Agathistoma
(Turbinidae, Tegulinae) snails in tropical and southwestern Atlantic. ZOOL SCR 2021. [DOI: 10.1111/zsc.12517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana P. Dornellas
- Laboratorio de Biologia Recifal – BIOREC Instituto Oceanografico Universidade de Sao Paulo Sao Paulo Brazil
| | - Roberta Graboski
- Departamento de Zoologia Museu Paraense Emilio Goeldi Belem PA Brazil
| | - Michael E. Hellberg
- Department of Biological Sciences Louisiana State University Baton Rouge Louisiana USA
| | - Tito M. C. Lotufo
- Laboratorio de Biologia Recifal – BIOREC Instituto Oceanografico Universidade de Sao Paulo Sao Paulo Brazil
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Lobster Distribution and Biodiversity on the Continental Shelf of Brazil: A Review. DIVERSITY 2021. [DOI: 10.3390/d13110507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The continental shelf of Brazil is home to a wide range of lobster species, with varying body size, color, habitat preference, and geographic and bathymetric distribution. Spiny lobsters (Panulirus) and slipper lobsters (Scyllaridae) are exploited for export and for the domestic market. Deep sea lobsters (Nephropidae and Polychelidae) have no commercial potential, and little is known about their biology. In this review, we identified 24 lobster species from benthic ecosystems off Brazil (Palinuridae 25%, Scyllaridae 29%, Nephropidae 25%, Polychelidae 17%, Enoplometopidae 4%). We designed a simplified theoretical scheme to understand the role of lobsters in the ecosystem, based on available evidence of distribution, biodiversity, life cycle, connectivity, and abundance. Finally, we propose a theoretical scheme of trophic top-down control, with interactions between a large decapod (spiny lobster), a demersal predator (red snapper), an apex predator (small tuna), benthic invertebrates and fishing exploitation.
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A New Species of Amphipod Pariphinotus Kunkel, 1910 (Amphipoda: Phliantidae) from the Southwestern Atlantic. Zool Stud 2021; 60:e57. [PMID: 35665079 PMCID: PMC9121138 DOI: 10.6620/zs.2021.60-57] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/01/2021] [Indexed: 01/24/2023]
Abstract
The genus Pariphinotus Kunkel, 1910 comprises a total of six species around the world, with circumtropical and subtropical distribution, commonly occurring in shallow waters, in soft bottoms and algae, including a previous record of P. seclusus (Shoemaker, 1933) from Brazil. Material examined was collected by SCUBA diving, from rhodolith beds, 12 meters deep, at the Fernando de Noronha Archipelago, off the northeastern Brazilian coast. The new Brazilian species described here can be diagnosed by a unique combination of character states present in other species of the genus. However, it has two exclusive characteristics, distinguishing it from the group: medial apex of pleopod 3 peduncle with two small hook setae, and uropod 1 peduncle not exceeding the apex of telson.
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Rocha L, Moraes F, Salani S, Hajdu E. Taxonomy of Petrosiidae Van Soest, 1980 (Haplosclerida, Porifera) from Brazil. Zootaxa 2021; 5004:251-287. [PMID: 34811307 DOI: 10.11646/zootaxa.5004.2.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Indexed: 11/04/2022]
Abstract
Petrosiidae (Haplosclerida, Demospongiae) is characterized by the hard and friable consistency, and an isotropic reticulated skeleton of oxeas/ strongyles. The Brazilian coast and oceanic islands harbor three out of four known genera of Petrosiidae: Neopetrosia de Laubenfels, 1949; Petrosia (Petrosia) Vosmaer, 1885 and Xestospongia de Laubenfels, 1932. A taxonomic survey of samples from several expeditions housed at the Porifera Collection of Museu Nacional, Universidade Federal do Rio de Janeiro, with additional comparative materials obtained from the Museu de Cincias Naturais, Fundao Zoobotnica do Rio Grande do Sul, and Universidade Federal de Pernambuco enabled the description of two new species: P. (P.) revizee sp. nov. and X. dorigo sp. nov. We also recorded a range extention for Neopetrosia proxima and Xestospongia muta, and Xestospongia grayi was synonymized with X. muta. Other species reported from the country are diagnosed, and an identification key for Petrosiidae from Brazil is provided.
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Affiliation(s)
- Lvia Rocha
- Museu Nacional, Departamento de Invertebrados, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, CEP 2090-040, Rio de Janeiro/RJ, Brazil..
| | - Fernando Moraes
- Museu Nacional, Departamento de Invertebrados, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, CEP 2090-040, Rio de Janeiro/RJ, Brazil. Instituto de Pesquisas Jardim Botnico do Rio de Janeiro, Diretoria de Pesquisas. Rua Pacheco Leo, 915/ 123, CEP 22460-030, Jardim Botnico, Rio de Janeiro/RJ, Brazil..
| | - Sula Salani
- Laboratrio de Bentos, Instituto de Cincias Biolgicas, Universidade de Braslia. Campus Universitrio Darcy Ribeiro, Bloco E, s/n, Asa Norte, CEP 70910-900, Braslia/DF, Brazil..
| | - Eduardo Hajdu
- Museu Nacional, Departamento de Invertebrados, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, CEP 2090-040, Rio de Janeiro/RJ, Brazil..
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Abstract
Increasing evidence suggests that coral reefs exposed to elevated turbidity may be more resilient to climate change impacts and serve as an important conservation hotspot. However, logistical difficulties in studying turbid environments have led to poor representation of these reef types within the scientific literature, with studies using different methods and definitions to characterize turbid reefs. Here we review the geological origins and growth histories of turbid reefs from the Holocene (past), their current ecological and environmental states (present), and their potential responses and resilience to increasing local and global pressures (future). We classify turbid reefs using new descriptors based on their turbidity regime (persistent, fluctuating, transitional) and sources of sediment input (natural versus anthropogenic). Further, by comparing the composition, function and resilience of two of the most studied turbid reefs, Paluma Shoals Reef Complex, Australia (natural turbidity) and Singapore reefs (anthropogenic turbidity), we found them to be two distinct types of turbid reefs with different conservation status. As the geographic range of turbid reefs is expected to increase due to local and global stressors, improving our understanding of their responses to environmental change will be central to global coral reef conservation efforts.
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Braga MDA, Paiva SV, Gurjão LMD, Teixeira CEP, Gurgel ALAR, Pereira PHC, Soares MDO. Retirement risks: Invasive coral on old oil platform on the Brazilian equatorial continental shelf. MARINE POLLUTION BULLETIN 2021; 165:112156. [PMID: 33618222 DOI: 10.1016/j.marpolbul.2021.112156] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/29/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
The objective of this study was to report, for the first time, the presence of an invasive coral (Tubastraea tagusensis) in an oil platform on the Brazilian equatorial continental shelf. This structure is located more than 1200 km north from other oil and gas structures colonized by this coral. We also discussed the retirement and decommissioning of old biofouling-encrusted oil and gas platforms (~62 platforms) from decreased production and the current oil crisis, exacerbated by the COVID-19 pandemic. This presents an ecological concern due invasive coral range expansion and potential impacts to poorly studied ecosystems such as marginal shallow-water coral reefs and mesophotic ecosystems. It is imperative that mindful risk analysis and rigorous environmental studies must precede the installation of new oil and gas platforms. In addition, decommissioning of retired structures should take into consideration marine restoration and non-indigenous species dispersal, and more specifically, Tubastraea bioinvasion.
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Affiliation(s)
- Marcus Davis Andrade Braga
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil; Mar do Ceará Limitada, Fortaleza, Brazil
| | - Sandra Vieira Paiva
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil
| | - Lívio Moreira de Gurjão
- Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA), Fortaleza, Brazil
| | | | | | | | - Marcelo de Oliveira Soares
- Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Fortaleza, Brazil; Institut de Ciència i Tecnologia Ambientals (ICTA), Universitat Autònoma de Barcelona (UAB), Carrer de les Columnes, Edifici Z, Cerdanyolla del Vallés, Barcelona, Spain; Dipartimento di Scienze e Tecnologie Biologiche e Ambientali (DISTEBA), Università del Salento, Lecce, Italy.
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Calegario G, Freitas L, Appolinario LR, Venas T, Arruda T, Otsuki K, Masi B, Omachi C, Moreira AP, Soares AC, Rezende CE, Garcia G, Tschoeke D, Thompson C, Thompson FL. Conserved rhodolith microbiomes across environmental gradients of the Great Amazon Reef. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 760:143411. [PMID: 33243513 DOI: 10.1016/j.scitotenv.2020.143411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
The Great Amazon Reef System (GARS) covers an estimated area of 56,000 km2 off the mouth of the Amazon River. Living rhodolith holobionts are major benthic components of the GARS. However, it is unclear whether environmental conditions modulate the rhodolith microbiomes. Previous studies suggest that environmental parameters such as light, temperature, depth, and nutrients are drivers of rhodolith health. However, it is unclear whether rhodoliths from different sectors (northern, central, and southern) from the GARS have different microbiomes. We analysed metagenomes of rhodoliths (n = 10) and seawater (n = 6), obtained from the three sectors, by illumina shotgun sequencing (total read counts: 25.73 million). Suspended particulate material and isotopic composition of dissolved organic carbon (δ13C) indicated a strong influence of the Amazon river plume over the entire study area. However, photosynthetically active radiation at the bottom (PARb) was higher in the southern sector reefs, ranging from 10.1 to 14.3 E.m-2 day-1. The coralline calcareous red algae (CCA) Corallina caespitosa, Corallina officinalis, Lithophyllum cabiochiae, and Hapalidiales were present in the three sectors and in most rhodolith samples. Rhodolith microbiomes were very homogeneous across the studied area and differed significantly from seawater microbiomes. However, some subtle differences were found when comparing the rhodolith microbiomes from the northern and central sectors to the ones from the southern. Consistent with the higher light availability, two phyla were more abundant in rhodolith microbiomes from southern sites (Bacteroidetes, and Cyanobacteria). In addition, two functional categories were enhanced in southern rhodolith microbiomes (iron acquisition and metabolism, and photosynthesis). Phycobiliprotein-coding genes were also more abundant in southern locations, while the functional categories of respiration and sulfur metabolism were enhanced in northern and central rhodolith microbiomes, consistent with higher nutrient loads. The results confirm the conserved nature of rhodolith microbiomes even under pronounced environmental gradients. Subtle taxonomic and functional differences observed in rhodolith microbiomes may enable rhodoliths to thrive in changing environmental conditions.
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Affiliation(s)
- Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Lucas Freitas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Luciana Reis Appolinario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Taina Venas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Tatiane Arruda
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Koko Otsuki
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Bruno Masi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Claudia Omachi
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Universidade de São Paulo, Instituto Oceanográfico, Laboratório de Indicadores Ambientais, São Paulo, Brazil
| | - Ana Paula Moreira
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Ana Carolina Soares
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Carlos E Rezende
- Laboratório de Ciências Ambientais, Universidade Estadual Norte Fluminense (UENF), Campos, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Diogo Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - Fabiano L Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
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Decadal (2006-2018) dynamics of Southwestern Atlantic's largest turbid zone reefs. PLoS One 2021; 16:e0247111. [PMID: 33617570 PMCID: PMC7899327 DOI: 10.1371/journal.pone.0247111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 02/01/2021] [Indexed: 11/19/2022] Open
Abstract
Tropical reefs are declining rapidly due to climate changes and local stressors such as water quality deterioration and overfishing. The so-called marginal reefs sustain significant coral cover and growth but are dominated by fewer species adapted to suboptimal conditions to most coral species. However, the dynamics of marginal systems may diverge from that of the archetypical oligotrophic tropical reefs, and it is unclear whether they are more or less susceptible to anthropogenic stress. Here, we present the largest (100 fixed quadrats at five reefs) and longest time series (13 years) of benthic cover data for Southwestern Atlantic turbid zone reefs, covering sites under contrasting anthropogenic and oceanographic forcing. Specifically, we addressed how benthic cover changed among habitats and sites, and possible dominance-shift trends. We found less temporal variation in offshore pinnacles' tops than on nearshore ones and, conversely, higher temporal fluctuation on offshore pinnacles' walls than on nearshore ones. In general, the Abrolhos reefs sustained a stable coral cover and we did not record regional-level dominance shifts favoring other organisms. However, coral decline was evidenced in one reef near a dredging disposal site. Relative abundances of longer-lived reef builders showed a high level of synchrony, which indicates that their dynamics fluctuate under similar drivers. Therefore, changes on those drivers could threaten the stability of these reefs. With the intensification of thermal anomalies and land-based stressors, it is unclear whether the Abrolhos reefs will keep providing key ecosystem services. It is paramount to restrain local stressors that contributed to coral reef deterioration in the last decades, once reversal and restoration tend to become increasingly difficult as coral reefs degrade further and climate changes escalate.
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Wilke DV, Jimenez PC, Branco PC, Rezende-Teixeira P, Trindade-Silva AE, Bauermeister A, Lopes NP, Costa-Lotufo LV. Anticancer Potential of Compounds from the Brazilian Blue Amazon. PLANTA MEDICA 2021; 87:49-70. [PMID: 33142347 DOI: 10.1055/a-1257-8402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
"Blue Amazon" is used to designate the Brazilian Economic Exclusive Zone, which covers an area comparable in size to that of its green counterpart. Indeed, Brazil flaunts a coastline spanning 8000 km through tropical and temperate regions and hosting part of the organisms accredited for the country's megadiversity status. Still, biodiversity may be expressed at different scales of organization; besides species inventory, genetic characteristics of living beings and metabolic expression of their genes meet some of these other layers. These metabolites produced by terrestrial creatures traditionally and lately added to by those from marine organisms are recognized for their pharmaceutical value, since over 50% of small molecule-based medicines are related to natural products. Nonetheless, Brazil gives a modest contribution to the field of pharmacology and even less when considering marine pharmacology, which still lacks comprehensive in-depth assessments toward the bioactivity of marine compounds so far. Therefore, this review examined the last 40 years of Brazilian natural products research, focusing on molecules that evidenced anticancer potential-which represents ~ 15% of marine natural products isolated from Brazilian species. This review discusses the most promising compounds isolated from sponges, cnidarians, ascidians, and microbes in terms of their molecular targets and mechanisms of action. Wrapping up, the review delivers an outlook on the challenges that stand against developing groundbreaking natural products research in Brazil and on a means of surpassing these matters.
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Affiliation(s)
- Diego V Wilke
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Paula C Jimenez
- Departamento de Ciências do Mar, Instituto do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Paola C Branco
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Paula Rezende-Teixeira
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Amaro E Trindade-Silva
- Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Anelize Bauermeister
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Norberto Peporine Lopes
- Núcleo de Pesquisa em Produtos Naturais e Sintéticos (NPPNS), Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Leticia V Costa-Lotufo
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
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Moura RL, Abieri ML, Castro GM, Carlos-Júnior LA, Chiroque-Solano PM, Fernandes NC, Teixeira CD, Ribeiro FV, Salomon PS, Freitas MO, Gonçalves JT, Neves LM, Hackradt CW, Felix-Hackradt F, Rolim FA, Motta FS, Gadig OBF, Pereira-Filho GH, Bastos AC. Tropical rhodolith beds are a major and belittled reef fish habitat. Sci Rep 2021; 11:794. [PMID: 33436906 PMCID: PMC7804296 DOI: 10.1038/s41598-020-80574-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022] Open
Abstract
Understanding habitat-level variation in community structure provides an informed basis for natural resources’ management. Reef fishes are a major component of tropical marine biodiversity, but their abundance and distribution are poorly assessed beyond conventional SCUBA diving depths. Based on a baited-video survey of fish assemblages in Southwestern Atlantic’s most biodiverse region we show that species composition responded mainly to the two major hard-bottom megahabitats (reefs and rhodolith beds) and to the amount of light reaching the bottom. Both megahabitats encompassed typical reef fish assemblages but, unexpectedly, richness in rhodolith beds and reefs was equivalent. The dissimilar fish biomass and trophic structure in reefs and rhodolith beds indicates that these systems function based on contrasting energy pathways, such as the much lower herbivory recorded in the latter. Rhodolith beds, the dominant benthic megahabitat in the tropical Southwestern Atlantic shelf, play an underrated role as fish habitats, and it is critical that they are considered in conservation planning.
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Affiliation(s)
- Rodrigo L Moura
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
| | - Maria L Abieri
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Guilherme M Castro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Lélis A Carlos-Júnior
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Pamela M Chiroque-Solano
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Nicole C Fernandes
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Carolina D Teixeira
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Felipe V Ribeiro
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Paulo S Salomon
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Matheus O Freitas
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Juliana T Gonçalves
- Instituto de Biologia and SAGE/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Leonardo M Neves
- Laboratório de Ecologia Aquática e Educação Ambiental, Universidade Federal Rural do Rio de Janeiro, Três Rios, RJ, Brazil
| | - Carlos W Hackradt
- Laboratório de Ecologia e Conservação Marinha, Universidade Federal do Sul da Bahia, Porto Seguro, BA, Brazil
| | - Fabiana Felix-Hackradt
- Laboratório de Ecologia e Conservação Marinha, Universidade Federal do Sul da Bahia, Porto Seguro, BA, Brazil
| | - Fernanda A Rolim
- Instituto de Biociências, Laboratório de Pesquisa de Elasmobrânquios, Universidade Estadual Paulista, São Vicente, SP, Brazil
| | - Fábio S Motta
- Laboratório de Ecologia e Conservação Marinha, Instituto Do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Otto B F Gadig
- Instituto de Biociências, Laboratório de Pesquisa de Elasmobrânquios, Universidade Estadual Paulista, São Vicente, SP, Brazil
| | - Guilherme H Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto Do Mar, Universidade Federal de São Paulo, Santos, SP, Brazil
| | - Alex C Bastos
- Universidade Federal do Espírito Santo, Vitória, ES, Brazil
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Souza BC, Cruz VP, Almeida TRA, Sales JBL, Rodrigues-Filho LFS, Vianna M, Rotundo MM, Oliveira C, Foresti F. Genetic diversity assessment for the vulnerable migratory cownose ray Rhinoptera bonasus (Myliobatiformes: Rhinopteridae) from the southwestern Atlantic Ocean. NEOTROPICAL ICHTHYOLOGY 2021. [DOI: 10.1590/1982-0224-2021-0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT Rhinoptera bonasus is a bento-pelagic and highly migratory species occurring from southern United States to northern Argentina. Due to overfishing effects, R. bonasus is currently at risk, classified by the IUCN Red List as vulnerable. Considering the lack of molecular data available for R. bonasus, this study aimed to describe the genetic variability and population structure of specimens sampled from three Brazilian coast ecoregions (Amazon ecoregion, Pará; Northeastern ecoregion, Pernambuco and Southeastern ecoregion, Rio de Janeiro, São Paulo and Santa Catarina), through five polymorphic microsatellite markers. Here testing the panmixia hypothesis for Brazilian ecoregions and test natal philopathy. A total of 69 analyzed specimens revealed individual and significant genetic differentiation between the sampled locations. Φ ST (0.12), PCA, DAPC and Bayesian analyses of the genetic population structure revealed at least two distinct genetic R. bonasus groupings. IBD tests were significant, indicating a correlation between genetic and geographical distance among populations, which can be explained by reproductive philopatric behavior. Philopatric behavior associated with R. bonasus mobility may influence the differentiation values observed for all loci in the investigated samples.
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Affiliation(s)
- Bruno C. Souza
- Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
| | - Vanessa P. Cruz
- Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
| | | | | | | | | | | | | | - Fausto Foresti
- Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
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Nittrouer CA, DeMaster DJ, Kuehl SA, Figueiredo AG, Sternberg RW, Faria LEC, Silveira OM, Allison MA, Kineke GC, Ogston AS, Souza Filho PWM, Asp NE, Nowacki DJ, Fricke AT. Amazon Sediment Transport and Accumulation Along the Continuum of Mixed Fluvial and Marine Processes. ANNUAL REVIEW OF MARINE SCIENCE 2021; 13:501-536. [PMID: 32635795 DOI: 10.1146/annurev-marine-010816-060457] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sediment transfer from land to ocean begins in coastal settings and, for large rivers such as the Amazon, has dramatic impacts over thousands of kilometers covering diverse environmental conditions. In the relatively natural Amazon tidal river, combinations of fluvial and marine processes transition toward the ocean, affecting the transport and accumulation of sediment in floodplains and tributary mouths. The enormous discharge of Amazon fresh water causes estuarine processes to occur on the continental shelf, where much sediment accumulation creates a large clinoform structure and where additional sediment accumulates along its shoreward boundary in tidal flats and mangrove forests. Some remaining Amazon sediment is transported beyond the region near the river mouth, and fluvial forces on it diminish. Numerous perturbations to Amazon sediment transport and accumulation occur naturally, but human actions will likely dominate future change, and now is the time to document, understand, and mitigate their impacts.
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Affiliation(s)
- Charles A Nittrouer
- School of Oceanography, University of Washington, Seattle, Washington 98195, USA; , , ,
- Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA
| | - David J DeMaster
- Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695, USA;
| | - Steven A Kuehl
- Virginia Institute of Marine Science, William and Mary, Gloucester Point, Virginia 23062, USA;
- Department of Geological Oceanography, Xiamen University, Xiamen 361005, China
| | - Alberto G Figueiredo
- Departamento de Geologia e Geofísica, Universidade Federal Fluminense, Niterói 24210-346, Brasil;
| | - Richard W Sternberg
- School of Oceanography, University of Washington, Seattle, Washington 98195, USA; , , ,
| | - L Ercilio C Faria
- Instituto de Geociências, Universidade Federal do Pará, Belém 66075-110, Brasil;
| | - Odete M Silveira
- Instituto de Geociências, Universidade Federal do Pará, Belém 66075-110, Brasil;
| | - Mead A Allison
- Department of River-Coastal Science and Engineering, Tulane University, New Orleans, Louisiana 70118, USA;
| | - Gail C Kineke
- Department of Earth and Environmental Sciences, Boston College, Chestnut Hill, Massachusetts 02467, USA;
| | - Andrea S Ogston
- School of Oceanography, University of Washington, Seattle, Washington 98195, USA; , , ,
| | - Pedro W M Souza Filho
- Instituto de Geociências, Universidade Federal do Pará, Belém 66075-110, Brasil;
- Instituto Technológico Vale, Belém 66055-090, Brasil;
| | - Nils E Asp
- Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança 68600-000, Brasil;
| | - Daniel J Nowacki
- Pacific Coastal and Marine Science Center, US Geological Survey, Santa Cruz, California 95060, USA;
| | - Aaron T Fricke
- School of Oceanography, University of Washington, Seattle, Washington 98195, USA; , , ,
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Pichler N, Maria de Souza F, Ferreira Dos Santos V, Martins CC. Polycyclic aromatic hydrocarbons (PAHs) in sediments of the amazon coast: Evidence for localized sources in contrast to massive regional biomass burning. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115958. [PMID: 33176946 DOI: 10.1016/j.envpol.2020.115958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
The Amazon coastal zone has become contaminated with organic pollutants, such as polycyclic aromatic hydrocarbons (PAHs). However, information about their distribution and sources in this area is scarce, despite increasing deforestation and oil exploitation. Therefore, individual PAHs were analysed in the sediments of the Oyapock estuary, which is located in the Amazon coastal zone. This study provides information about the spatial and short-term temporal distributions of PAHs and discusses the major sources of PAHs to better understand the anthropogenic processes occurring in adjacent areas. The concentrations of all sixteen priority PAHs defined by the US EPA (United States Environmental Protection Agency, ∑16PAHs) ranged from 10.9 to 138.8 ng g-1 with a mean and standard deviation = 37.9 ± 20.5 and indicated that this estuary is not contaminated, while the mean levels were similar to those found in other Amazon regions and pristine areas along the coast of Brazil. No significant differences were found in the sedimentary PAHs levels between the wet and dry sampling campaigns, despite the different climatic conditions. Diagnostic ratios, positive matrix factorization (PMF) and cluster analysis have shown that the majority of the investigated PAHs were derived from combustion processes (at least 55.1%, as estimated by the PMF model). Localized source inputs from oil and its by-products concomitantly with natural/biogenic sources appear to be secondary sources. The PAH contribution from biomass and wood combustion was approximately 13.6% and was relatively lower than other regions of the Amazon that are undergoing massive biomass burning. As the first study of PAHs in this region, this study provides vital information on the healthy state of the estuary and can serve as a baseline for assessing the impacts of acute oil disasters or the chronic input of PAHs as a result of human settlements.
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Affiliation(s)
- Nikola Pichler
- Centro de Estudos Do Mar, Universidade Federal Do Paraná, Caixa Postal 61, 83255-976, Pontal Do Paraná, PR, Brazil; Ghent University, St. Pietersnieuwstraat 33, 9000, Ghent, Belgium
| | - Fernanda Maria de Souza
- Instituto de Pesquisas Científicas e Tecnológicas Do Estado Do Amapá, Centro de Pesquisas Aquáticas, Rod. Juscelino Kubitschek, S/n, Fazendinha, 68903-197, Macapá, AP, Brazil
| | - Valdenira Ferreira Dos Santos
- Instituto de Pesquisas Científicas e Tecnológicas Do Estado Do Amapá, Centro de Pesquisas Aquáticas, Rod. Juscelino Kubitschek, S/n, Fazendinha, 68903-197, Macapá, AP, Brazil; Universidade Federal Do Amapá, Rod. Juscelino Kubitschek, Km-02, Jardim Marco Zero, Macapá, AP, Brazil
| | - César C Martins
- Centro de Estudos Do Mar, Universidade Federal Do Paraná, Caixa Postal 61, 83255-976, Pontal Do Paraná, PR, Brazil.
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Freitas L, Appolinario L, Calegario G, Campeão M, Tschoeke D, Garcia G, Venancio IM, Cosenza CAN, Leomil L, Bernardes M, Albuquerque AL, Thompson C, Thompson F. Glacial-interglacial transitions in microbiomes recorded in deep-sea sediments from the western equatorial Atlantic. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 746:140904. [PMID: 32763595 DOI: 10.1016/j.scitotenv.2020.140904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
In the late Quaternary, glacial-interglacial transitions are marked by major environmental changes. Glacial periods in the western equatorial Atlantic (WEA) are characterized by high continental terrigenous input, which increases the proportion of terrestrial organic matter (e.g. lignin, alkanes), nutrients (e.g. iron and sulphur), and lower primary productivity. On the other hand, interglacials are characterized by lower continental contribution and maxima in primary productivity. Microbes can serve as biosensors of past conditions, but scarce information is available on deep-sea sediments in the WEA. The hypothesis put forward in this study is that past changes in climate conditions modulated the taxonomic/functional composition of microbes from deep sediment layers. To address this hypothesis, we collected samples from a marine sediment core located in the WEA, which covered the last 130 kyr. This region is influenced by the presence of the Amazon River plume, which outputs dissolved and particulate nutrients in vast oceanic regions, as well as the Parnaiba river plume. Core GL-1248 was analysed by shotgun metagenomics and geochemical analyses (alkane, lignin, perylene, sulphur). Two clusters (glacial and interglacial-deglacial) were found based on taxonomic and functional profiles of metagenomes. The interglacial period had a higher abundance of genes belonging to several sub-systems (e.g. DNA, RNA metabolism, cell division, chemotaxis, and respiration) that are consistent with a past environment with enhanced primary productivity. On the other hand, the abundance of Alcanivorax, Marinobacter, Kangiella and aromatic compounds that may serve as energy sources for these bacteria were higher in the glacial. The glacial period was enriched in genes for the metabolism of aromatic compounds, lipids, isoprenoids, iron, and Sulphur, consistent with enhanced fluvial input during the last glacial period. In contrast, interglacials have increased contents of more labile materials originating from phytoplankton (e.g. Prochlorococcus). This study provides new insights into the microbiome as climatic archives at geological timescales.
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Affiliation(s)
- Lucas Freitas
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Luciana Appolinario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Mariana Campeão
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Diogo Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil
| | - Igor Martins Venancio
- Center for Weather Forecasting and Climate Studies (CPTEC), National Institute for Space Research (INPE), Cachoeira Paulista, Brazil; Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil
| | | | | | - Marcelo Bernardes
- Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil
| | - Ana Luiza Albuquerque
- Gradutate Program on Geoscience (Geochemistry), Federal Fluminense University, Niterói, Brazil.
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil.
| | - Fabiano Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; SAGE-COPPE, UFRJ, Rio de Janeiro, Brazil.
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Magris RA, Costa MDP, Ferreira CEL, Vilar CC, Joyeux J, Creed JC, Copertino MS, Horta PA, Sumida PYG, Francini‐Filho RB, Floeter SR. A blueprint for securing Brazil's marine biodiversity and supporting the achievement of global conservation goals. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13183] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Rafael A. Magris
- Chico Mendes Institute for Biodiversity Conservation Ministry of Environment Brasilia Brazil
| | - Micheli D. P. Costa
- School of Life and Environmental Sciences Centre for Integrative Ecology Deakin University Melbourne Vic. Australia
- School of Biological Sciences The University of Queensland Brisbane Qld Australia
| | - Carlos E. L. Ferreira
- Reef Systems Ecology and Conservation Lab Departamento de Biologia Marinha Universidade Federal Fluminense Rio de Janeiro Brazil
| | - Ciro C. Vilar
- Departamento de Oceanografia e Ecologia Universidade Federal do Espírito Santo Vitória Brazil
| | - Jean‐Christophe Joyeux
- Departamento de Oceanografia e Ecologia Universidade Federal do Espírito Santo Vitória Brazil
| | - Joel C. Creed
- Departamento de Ecologia Instituto de Biologia Roberto Alcantara GomesUniversidade do Estado do Rio de Janeiro Rio de Janeiro Brazil
| | - Margareth S. Copertino
- Lab. Ecologia Vegetal Costeira Instituto de Oceanografia Universidade Federal do Rio Grande – FURG Rio Grande Brazil
| | - Paulo A. Horta
- Departamento de Botânica Universidade Federal de Santa Catarina – UFSC Florianópolis Brazil
| | - Paulo Y. G. Sumida
- Instituto Oceanográfico da Universidade de São Paulo Praça do Oceanográfico São Paulo Brazil
| | | | - Sergio R. Floeter
- Marine Macroecology and Biogeography Laboratory Department of Ecology and Zoology Federal University of Santa Catarina Florianópolis Brazil
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Resource partitioning among stranded aquatic mammals from Amazon and Northeastern coast of Brazil revealed through Carbon and Nitrogen Stable Isotopes. Sci Rep 2020; 10:12897. [PMID: 32732987 PMCID: PMC7393136 DOI: 10.1038/s41598-020-69516-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 07/02/2020] [Indexed: 11/09/2022] Open
Abstract
Aquatic mammals play an important role in community structure. The present study applied stable isotope analysis (SIA) to evidence trophic relationships and resource partitioning among aquatic mammals inhabiting different environments in the Amazon estuarine complex and adjacent coastal zone (AE) and Northeastern coast (NC) of Brazil. In addition, isotopic niche partitioning among Sotalia guianensis, Inia spp. and Trichechus inunguis within the AE was also evaluated, and ecological S. guianensis stocks were characterized. Among marine delphinids, the carbon isotopic composition in offshore species mirrored that of nearshore species, contradicting the pattern of decreasing δ13C values characteristic of many areas around the world including areas in Southeastern and Southern Brazil. Isotopic niches were highly distinct, with no overlap among the assessed species inhabiting the AE. Inia spp. and T. inunguis occupied significantly larger isotopic niche spaces, suggesting high habitat plasticity. S. guianensis inhabited two coastal regions indicating an ecological distinction. Nitrogen values were similar between S. guianensis from the NC and AE, indicating comparable trophic positions. However, NC specimens presented more variable δ13C values compared to those from AE. SIA results also allowed for insights concerning habitat use and the trophic ecology of dolphin species inhabiting different oceanographic regions off Northern/Northeast Brazil. These findings provide novel data on the stable isotope composition for cetaceans and sirenians from this region, and aid in furthering knowledge on the trophic ecology and habitat use of the investigated species.
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Peres PA, Mantelatto FL. Salinity tolerance explains the contrasting phylogeographic patterns of two swimming crabs species along the tropical western Atlantic. Evol Ecol 2020. [DOI: 10.1007/s10682-020-10057-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
During the greenhouse conditions prevailing in the early–middle Eocene, larger benthic foraminifers (LBF) spread out on carbonate platforms worldwide while rhodolith beds were scarcely represented. This reduction in rhodolith beds coincided with a relative decrease in coralline algal diversity and with a drastic decline of coral reef abundance. Middle Eocene rhodoliths from two tropical (San Jacinto Fold Belt in northern Colombia and Bahoruco Peninsula in the Dominican Republic) and two mid-latitude (Salinas Menores Ravine and Sierra del Zacatín in Southern Spain) localities were studied. Rhodolith rudstones in the tropical areas accumulated on relatively deep (several tens of meters) platform environments and were also redeposited in deeper settings downslope. In Salinas Menores, rhodoliths are dispersed in planktic foraminifer-rich marls. Miliolids are common in the infilling of constructional voids in these rhodoliths, indicating that they originally grew in shallow-water inner-shelf settings and afterwards they were transported to deeper environments. In Sierra del Zacatín, rhodoliths are scarce and coralline algae mainly occur as crusts attached to and intergrowing with corals. Here, LBF dominated shallow-water carbonate platforms. In terms of taxonomic composition, coralline algae of the order Hapalidiales are the most abundant in the study areas, followed by Sporolithales. The order Corallinales is poorly represented except in Salinas Menores, where it is relatively abundant and diverse. The impact of high temperatures due to high levels of atmospheric CO2 during the Eocene and widespread oligotrophic conditions, which favored formation of LBF-rich lithofacies, might account for the low abundance of rhodolith beds at mid and high latitudes. In contrast, the more productive equatorial regions would have favored the formation of rhodolith beds.
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Structure of Rhodolith Beds and Surrounding Habitats at the Doce River Shelf (Brazil). DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020075] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The world’s largest rhodolith beds have been reported from the Brazilian continental shelf. Highly biodiverse beds are located in Southeast Brazil, but ecological aspects of these beds remain unknown. Despite their ecological importance, rhodolith beds (RBs) have recently been subjected to a severe threat, when more than 35 million cubic meters of mining residues slid down a mountainside on 5 November 2015, after a collapse of a gigantic dam upstream (the Mariana disaster), causing a huge impact on the Doce River. Our aim is to assess rhodolith beds and adjacent coralline formations on the Doce River Shelf (DRS) after the dam collapse. This paper describes the distribution, abundance, vitality, size and shape, as well as unmapped bryozoan rich sediment formations in this area, serving as baseline knowledge for environmental monitoring. Four distinct biogenic sea bottom habitats (bryozoan bottoms, rhodolith beds, carbonate concretions, and reefs) were recognized at different depth ranges with distribution indicated to be mostly related to the local sedimentary regime. Mud sediments dominated the seafloor up to 35 m depth. On the mid shelf, bryozoan bottoms were recorded from 35 to 45 m depth. Crustose coralline algae (CCA) occurring as rhodoliths and carbonate concretions extend over 1953 km2 in the mid and outer shelf. Rhodolith beds predominate in these areas, totaling 1521 km2 of sea bottom and were more abundant at depths between 45 and 65 m, occupying an extensive area south of the Doce River mouth. Northward, rhodolith beds are less abundant or absent likely due to the long-term deposition of fine sediments in this region. Carbonate concretions and reefs covered by CCA occupy sparse areas on the outer shelf (65–105 m depth). Differences in rhodolith features recorded, including coverage, density and size, may be related to the Doce River sedimentation and related factors (e.g., hydrodynamics, depth, and light). However, since there are no previous detailed studies on RBs along the DRS, we could not assess the impact of sedimentation of dam wastes on RBs’ abundance and density. In any case, these are valuable results for the further monitoring of long-term effects. Considering that the growth of these rhodoliths is relatively slow, and that they are affected by the sedimentation from the Doce River, the implementation of a management and conservation plan for this area is necessary in order to preserve this ecosystem.
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