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Lilkendey J, Barrelet C, Zhang J, Meares M, Larbi H, Subsol G, Chaumont M, Sabetian A. Herbivorous fish feeding dynamics and energy expenditure on a coral reef: Insights from stereo-video and AI-driven 3D tracking. Ecol Evol 2024; 14:e11070. [PMID: 38435013 PMCID: PMC10909578 DOI: 10.1002/ece3.11070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 03/05/2024] Open
Abstract
Unveiling the intricate relationships between animal movement ecology, feeding behavior, and internal energy budgeting is crucial for a comprehensive understanding of ecosystem functioning, especially on coral reefs under significant anthropogenic stress. Here, herbivorous fishes play a vital role as mediators between algae growth and coral recruitment. Our research examines the feeding preferences, bite rates, inter-bite distances, and foraging energy expenditure of the Brown surgeonfish (Acanthurus nigrofuscus) and the Yellowtail tang (Zebrasoma xanthurum) within the fish community on a Red Sea coral reef. To this end, we used advanced methods such as remote underwater stereo-video, AI-driven object recognition, species classification, and 3D tracking. Despite their comparatively low biomass, the two surgeonfish species significantly influence grazing pressure on the studied coral reef. A. nigrofuscus exhibits specialized feeding preferences and Z. xanthurum a more generalist approach, highlighting niche differentiation and their importance in maintaining reef ecosystem balance. Despite these differences in their foraging strategies, on a population level, both species achieve a similar level of energy efficiency. This study highlights the transformative potential of cutting-edge technologies in revealing the functional feeding traits and energy utilization of keystone species. It facilitates the detailed mapping of energy seascapes, guiding targeted conservation efforts to enhance ecosystem health and biodiversity.
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Affiliation(s)
- Julian Lilkendey
- School of ScienceAuckland University of Technology (AUT)AucklandNew Zealand
- Leibniz Centre for Tropical Marine Research (ZMT)BremenGermany
| | - Cyril Barrelet
- Research‐Team ICAR, Laboratoire d'informatique, de robotique et de microélectronique de Montpellier (LIRMM), CNRSUniversity of MontpellierMontpellierFrance
| | - Jingjing Zhang
- School of ScienceAuckland University of Technology (AUT)AucklandNew Zealand
- The New Zealand Institute for Plant and Food Research LimitedAucklandNew Zealand
| | - Michael Meares
- School of ScienceAuckland University of Technology (AUT)AucklandNew Zealand
| | - Houssam Larbi
- Research‐Team ICAR, Laboratoire d'informatique, de robotique et de microélectronique de Montpellier (LIRMM), CNRSUniversity of MontpellierMontpellierFrance
| | - Gérard Subsol
- Research‐Team ICAR, Laboratoire d'informatique, de robotique et de microélectronique de Montpellier (LIRMM), CNRSUniversity of MontpellierMontpellierFrance
| | - Marc Chaumont
- Research‐Team ICAR, Laboratoire d'informatique, de robotique et de microélectronique de Montpellier (LIRMM), CNRSUniversity of MontpellierMontpellierFrance
- University of NîmesNîmesFrance
| | - Armagan Sabetian
- School of ScienceAuckland University of Technology (AUT)AucklandNew Zealand
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de Almeida M, da Fonseca LT, Pinheiro BR, Pereira NS, de Jesus Flores Montes M. Daily variability of pH and temperature in seawater from a near-pristine oceanic atoll, Southwest Atlantic. MARINE POLLUTION BULLETIN 2023; 196:115670. [PMID: 37871456 DOI: 10.1016/j.marpolbul.2023.115670] [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: 02/28/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 10/25/2023]
Abstract
The study of pH and temperature variability in reef environments, and the underlying processes that control this variability, is of great importance for ocean acidification research. Therefore, in the reef environment of Rocas Atoll, we conducted continuous monitoring of pH and temperature and periodic sampling of carbonate chemistry, and we hypothesize that seawater temperature is not the determining factor in the daily variability of pH at this atoll. Our results showed that the seawater of the atoll presented a high daily variability in pH, [H+], and temperature. The cycles of variations occurred primarily with a periodicity of ∼24 h, related to the daily light cycle, and secondarily with a periodicity of ∼12 h, associated with the semi-diurnal tidal cycles of the atoll. The results indicate that the relative balance of net organic carbon metabolism is the main process modulating carbonate chemistry on the atoll throughout the day.
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Affiliation(s)
- Marcos de Almeida
- Department of Oceanography, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
| | | | - Bárbara Ramos Pinheiro
- Postgraduate Program in Water Resources and Sanitation, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Natan Silva Pereira
- Department of Exact and Earth Sciences, State University of Bahia, Salvador, Bahia, Brazil
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Ruta C, Mundim DM, Freitas R, Ribeiro RP. New species and record of Dodecaceria (Annelida: Cirratulidae) the Biological Reserve of Rocas Atoll, Brazil, the only atoll in the South Atlantic Ocean. PLoS One 2023; 18:e0293087. [PMID: 37870983 PMCID: PMC10593238 DOI: 10.1371/journal.pone.0293087] [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: 06/21/2023] [Accepted: 09/25/2023] [Indexed: 10/25/2023] Open
Abstract
The polychaete Family Cirratulidae is one of the most abundant and diverse groups of Annelida, although it remains poorly known worldwide. Dodecaceria Ørsted, 1843 is one of the least described genera of Cirratulidae. The present report is the first taxonomic study of the genus Dodecaceria for the Brazilian coast. Cirratulidae were collected at Rocas Atoll, the first Brazilian marine protected area and the only atoll in the South Atlantic Ocean. We described one new species, Dodecaceria zelinhae n. sp., and a new record of D. dibranchiata Blake & Dean, 2019, previously only known from Panama. The new species is distinguished from other Dodecaceria species by having lateral tentacles, a smooth peristomium, 3-5 pairs of branchiae, hooks from chaetiger 11 in notopodia and 9 in neuropodia. Dodecaceria dibranchiata, a Caribbean species, is here recorded for the first time in the South Atlantic Ocean.
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Affiliation(s)
- Christine Ruta
- Departamento de Zoologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Zoologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Davi Moreira Mundim
- Departamento de Zoologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Roberta Freitas
- Departamento de Zoologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Pós-Graduação em Zoologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rannyele P. Ribeiro
- Department of Biology, Washington University in St. Louis. St. Louis, Missouri, United States of America
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Kim H, Kim HG, Lee J, Lim S, Lee K, Kwon BO, Khim JS. Spatiotemporal variability on local-regional scale in subtidal meiofaunal assemblages along the southern coast of Korea. MARINE POLLUTION BULLETIN 2023; 193:115186. [PMID: 37399734 DOI: 10.1016/j.marpolbul.2023.115186] [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: 04/21/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
This study was conducted to investigate the spatiotemporal variability in subtidal meiofaunal assemblages off the southern coast of Korea at local and regional scales. Abiotic and biotic samples were collected by site (three sites at least 10 km apart) within region (three coastal regions at least 50 km apart) over 7 years (2015-2021). The density and taxon richness of meiofaunal assemblages differed significantly among sites, but not among regions or years. The meiofaunal assemblage composition differed significantly among sites, regions, and years. A distance-based multivariate multiple regression analysis revealed that the mean sediment grain size and total nitrogen, lead, nickel, chromium, and aluminum concentrations were key environmental variables determining the variation of the meiofaunal assemblages. This study can provide basic ecological data for understanding the spatiotemporal distribution of meiofauna assemblages and aid in the development of management strategies to mitigate marine pollution on the southern coast of Korea.
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Affiliation(s)
- Hyein Kim
- Department of Marine Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyeong-Gi Kim
- Department of Marine Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Junghyun Lee
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
| | - Seohee Lim
- Department of Marine Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kanghyun Lee
- Marine Act co., 77, Seongsuil-ro, Seongdong-gu, Seoul 04790, Republic of Korea
| | - Bong-Oh Kwon
- Department of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea
| | - Jong Seong Khim
- School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea.
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Santana EFC, Mies M, Longo GO, Menezes R, Aued AW, Luza AL, Bender MG, Segal B, Floeter SR, Francini-Filho RB. Turbidity shapes shallow Southwestern Atlantic benthic reef communities. MARINE ENVIRONMENTAL RESEARCH 2023; 183:105807. [PMID: 36379169 DOI: 10.1016/j.marenvres.2022.105807] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/26/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
Southwestern Atlantic reefs (Brazilian Province) occur along a broad latitudinal range (∼5°N-27°S) and under varied environmental conditions. We combined large-scale benthic cover and environmental data into uni- and multivariate regression tree analyses to identify unique shallow (<30 m) benthic reef communities and their environmental drivers along the Brazilian Province. Turbidity was the leading environmental driver of benthic reef communities, with the occurrence of two main groups: clear-water (dominated by fleshy macroalgae) and turbid (dominated by turf algae). Seven out of 14 scleractinian coral species were more abundant in the turbid group, thus corroborating the photophobic nature of some Brazilian corals. The most abundant scleractinian in Brazil (Montastraea cavernosa), largely dominated (71-93% of total coral cover) both, the shallow turbid and deeper clear-water reefs. Because these habitat types are widely recognized as potential climate refuges, local threats (e.g. pollution, overfishing) should be averted.
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Affiliation(s)
- Erika F C Santana
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Universidade Federal da Paraíba, Cidade Universitária, 58059-900, JP, PB, Brazil
| | - Miguel Mies
- Instituto Oceanográfico, Universidade de São Paulo, SP, Brazil; Instituto Coral Vivo, Santa Cruz Cabrália, BA, Brazil
| | - Guilherme O Longo
- Laboratório de Ecologia Marinha, Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59014-002, Brazil
| | - Rafael Menezes
- Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Universidade Federal da Paraíba, Cidade Universitária, 58059-900, JP, PB, Brazil
| | - Anaide W Aued
- Laboratório de Biogeografia e Macroecologia Marinha, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, 88040-970, SC, Brazil
| | - André Luís Luza
- Laboratório de Macroecologia e Conservação Marinha, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Mariana G Bender
- Laboratório de Macroecologia e Conservação Marinha, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Barbara Segal
- Laboratório de Ecologia de Ambientes Recifais, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, 88040-970, SC, Brazil
| | - Sergio R Floeter
- Laboratório de Biogeografia e Macroecologia Marinha, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, 88040-970, SC, Brazil
| | - Ronaldo B Francini-Filho
- Laboratório de Ecologia e Conservação Marinha, Centro de Biologia Marinha, Universidade de São Paulo, 11612-109, São Sebastião, SP, Brazil.
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Menezes M, Dias JD, Longo GO. Plastic debris decrease fish feeding pressure on tropical reefs. MARINE POLLUTION BULLETIN 2022; 185:114330. [PMID: 36351353 DOI: 10.1016/j.marpolbul.2022.114330] [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: 07/27/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
Fish feeding on the benthos mediate important ecological processes in reef ecosystems that are threatened by several anthropogenic activities, including plastic pollution. The impacts of plastic pollution on reef ecological processes, such as herbivory, is still unclear. We experimentally tested in the field how the presence of plastic on the benthos affects fish feeding by using a blocked design to compare fish feeding within 1m2 plastic-free areas and areas with either clean plastic or plastic colonized with biofilm in reefs of NE Brazil. Each area was videoed for 10 min, through which we identified fish species, estimated sizes and quantified the number of bites and feeding frequency. The presence of plastic reduced fish feeding on the benthos, regardless of the biofilm presence, and fish barely interacted with plastic debris. Our results demonstrate that the impact of plastic goes beyond entanglement and ingestion, affecting species behavior and ecological role.
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Affiliation(s)
- Maiara Menezes
- Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil.
| | - Juliana Déo Dias
- Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Guilherme O Longo
- Departamento de Oceanografia e Limnologia, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, 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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Pessarrodona A, Vergés A, Bosch NE, Bell S, Smith S, Sgarlatta MP, Wernberg T. Tropicalization unlocks novel trophic pathways and enhances secondary productivity in temperate reefs. Funct Ecol 2022. [DOI: 10.1111/1365-2435.13990] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Albert Pessarrodona
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
| | - Adriana Vergés
- Centre for Marine Science and Innovation, Ecology and Evolution Research Centre School of Biological Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
- Sydney Institute of Marine Science Mosman NSW Australia
| | - Néstor E. Bosch
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
| | - Sahira Bell
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
| | - Shannen Smith
- Centre for Marine Science and Innovation, Ecology and Evolution Research Centre School of Biological Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
| | - María P. Sgarlatta
- Centre for Marine Science and Innovation, Ecology and Evolution Research Centre School of Biological Earth and Environmental Sciences University of New South Wales Sydney NSW Australia
| | - Thomas Wernberg
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
- Institute of Marine Research His Norway
- Roskilde University Roskilde Denmark
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Capitani L, Roos N, Longo GO, Angelini R, Schenone L. Resource‐to‐consumer ratio determines the functional response of an herbivorous fish in a field experiment. OIKOS 2021. [DOI: 10.1111/oik.08784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Leonardo Capitani
- Post‐Graduate Program in Ecology, Bioscience Inst., Univ. Federal do Rio Grande do Norte Natal Brazil
- Marine Ecology Laboratory, Dept of Oceanography and Limnology, Univ. Federal do Rio Grande do Norte Natal RN Brazil
| | - Natalia Roos
- Post‐Graduate Program in Ecology, Bioscience Inst., Univ. Federal do Rio Grande do Norte Natal Brazil
- Marine Ecology Laboratory, Dept of Oceanography and Limnology, Univ. Federal do Rio Grande do Norte Natal RN Brazil
| | - Guilherme Ortigara Longo
- Post‐Graduate Program in Ecology, Bioscience Inst., Univ. Federal do Rio Grande do Norte Natal Brazil
- Marine Ecology Laboratory, Dept of Oceanography and Limnology, Univ. Federal do Rio Grande do Norte Natal RN Brazil
| | - Ronaldo Angelini
- Post‐Graduate Program in Ecology, Bioscience Inst., Univ. Federal do Rio Grande do Norte Natal Brazil
- Dept of Civil Engeneering, Univ. Federal do Rio Grande do Norte Natal Brazil
| | - Luca Schenone
- Laboratorio de Limnología, INIBIOMA (CONICET‐UNCo) Río Negro Argentina
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Garcia GS, Dias MS, Longo GO. Trade-off between number and length of remote videos for rapid assessments of reef fish assemblages. JOURNAL OF FISH BIOLOGY 2021; 99:896-904. [PMID: 33973243 DOI: 10.1111/jfb.14776] [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: 01/13/2021] [Revised: 04/28/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Remote underwater videos are widely employed to assess the structure and composition of reef fish assemblages but the sampling effort employed on each survey differs considerably, indicating that both the number of assessments and video length could be optimized. We searched for this optimal sampling effort in remote video samples to conduct rapid assessments of community composition and discussed the relation between number of replicates and video length, and how it impacts the method's efficiency to characterize species assemblages. Remote video recordings from tropical reefs in northeastern Brazil were used to investigate how fish species richness and composition builds across time and number of assays. Videos as short as 5 min successfully recorded species richness, requiring about five repetitions to record most species that compose 80% of the total biomass. Recording species composition required even less time in these reefs, setting a minimum of 3 min with the same five videos. By comparing the detected richness per analysed time unit, we found several shorter videos recorded for more species than a few longer videos, indicating that increasing the sampling coverage in the reef area might be better than just extending the video length for rapid assessments.
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Affiliation(s)
- Gabriel S Garcia
- Marine Ecology Laboratory, Department of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Natal, Brazil
- Aquatic Macroecology and Biogeography Laboratory, Ecology Department, Universidade de Brasília, Brasilia, Brazil
- Programa de Pós-Graduação em Ecologia, Universidade de Brasília, Brasilia, Brazil
| | - Murilo S Dias
- Aquatic Macroecology and Biogeography Laboratory, Ecology Department, Universidade de Brasília, Brasilia, Brazil
- Programa de Pós-Graduação em Ecologia, Universidade de Brasília, Brasilia, Brazil
| | - Guilherme O Longo
- Marine Ecology Laboratory, Department of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Natal, Brazil
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11
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Capitani L, de Araujo JN, Vieira EA, Angelini R, Longo GO. Ocean Warming Will Reduce Standing Biomass in a Tropical Western Atlantic Reef Ecosystem. Ecosystems 2021. [DOI: 10.1007/s10021-021-00691-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Lucena MB, Mendes TC, Barbosa MC, Cordeiro CAMM, Eggertsen LM, Ferreira CEL. Does the colors of light matter? Testing different light color in nocturnal underwater visual censuses. MARINE ENVIRONMENTAL RESEARCH 2021; 166:105261. [PMID: 33493683 DOI: 10.1016/j.marenvres.2021.105261] [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: 07/24/2020] [Revised: 11/03/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Most methods for assessing reef fish assemblages at night require artificial light, but the use of different colors of light may influence the results. We used data from 135 underwater visual censuses (UVCs) performed with different colors of light (red, blue and white) to evaluate the structure of fish assemblages on subtropical rocky reefs along three depth intervals. We did not detect any effect of the color of light on total density or fish species richness per transect, nor on the structure of the entire assemblage. However, the density of some of the most abundant species varied according to the color used. Red light showed the highest values of frequency of occurrence for most species, while the white light resulted in decreased abundance of some fish species. Our results emphasize the importance of choosing the color of light depending on the type of studies to be conducted. This will depend on the objectives of the research (e.g. inventory, behavior or community dynamics) and the target fish fauna (e.g. mobile or sedentary).
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Affiliation(s)
- Marcos B Lucena
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-901, Brazil; Reef Fish Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, RJ, 24020141, Brazil.
| | - Thiago C Mendes
- Instituto do Mar, Universidade Federal de São Paulo, Santos, SP, 11070-100, Brazil
| | - Moysés C Barbosa
- Reef Fish Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, RJ, 24020141, Brazil
| | - Cesar A M M Cordeiro
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-901, Brazil; Reef Fish Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, RJ, 24020141, Brazil
| | - Linda M Eggertsen
- Reef Fish Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, RJ, 24020141, Brazil; Laboratório de Ecologia e Conservação Marinha, Centro de Formação em Ciências Ambientais, Universidade Federal do Sul da Bahia, Porto Seguro-Eunápolis, Brazil
| | - Carlos E L Ferreira
- Reef Fish Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, RJ, 24020141, Brazil
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13
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Gaspar TL, Quimbayo JP, Ozekoski R, Nunes LT, Aued AW, Mendes TC, Garrido AG, Segal B. Severe coral bleaching of Siderastrea stellata at the only atoll in the South Atlantic driven by sequential Marine Heatwaves. BIOTA NEOTROPICA 2021. [DOI: 10.1590/1676-0611-bn-2020-1131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Abstract: Threatened by global warming and extreme climatic events, such as El Niño Southern Oscillation (ENSO) and Marine Heatwaves (MHW), coral reefs worldwide faced the worst bleaching and mortality event between 2014 and 2017, induced by the 2015/2016 ENSO. We evaluated the impacts of ENSO and MHW episodes on bleaching and mortality frequencies of Siderastrea stellata at Rocas Atoll, Southwestern Atlantic, using visual censuses conducted in 2016, 2017 and 2019. Bleaching rate varied significantly along the sampling period (11.71% in 2016, 1.52% in 2017, and 88% in 2019), but mortality was always less than 4%. Bleaching events in Atlantic reefs have been constantly associated with ENSO, until these recent events of the last two years. We suggest that MHW were probably the primary driver of the observed bleaching, especially in 2019, when much higher bleaching rates were observed than in ENSO periods. Although Southwestern Atlantic massive corals are considered more resistant to thermal stress than reefs corals worldwide, the strong events registered since 2019 highlight the need for continuous monitoring to better understand coral bleaching dynamics and improve predictions on the effects of global change in the region.
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Affiliation(s)
| | | | | | | | | | | | | | - Bárbara Segal
- Universidade Federal de Santa Catarina, Brasil; Instituto Coral Vivo, Brasil
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Giglio VJ, Nunes JACC, Ferreira CEL, Blumstein DT. Client reef fish tolerate closer human approaches while being cleaned. J Zool (1987) 2020. [DOI: 10.1111/jzo.12814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- V. J. Giglio
- Laboratório de Ecologia e Conservação Marinha Instituto do Mar Universidade Federal de São Paulo Santos SP Brazil
| | | | - C. E. L. Ferreira
- Laboratório de Ecologia e Conservação de Ambientes Recifais Departamento de Biologia Marinha Universidade Federal Fluminense Niterói RJ Brazil
| | - D. T. Blumstein
- Department of Ecology and Evolutionary Biology University of California Los Angeles CA USA
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15
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Carvalho VF, Assis J, Serrão EA, Nunes JM, Anderson AB, Batista MB, Barufi JB, Silva J, Pereira SMB, Horta PA. Environmental drivers of rhodolith beds and epiphytes community along the South Western Atlantic coast. MARINE ENVIRONMENTAL RESEARCH 2020; 154:104827. [PMID: 31780097 DOI: 10.1016/j.marenvres.2019.104827] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 07/31/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Environmental conditions shape the occurrence and abundance of habitat-building organisms at global scales. Rhodolith beds structure important hard substrate habitats for a large number of marine benthic organisms. These organisms can benefit local biodiversity levels, but also compete with rhodoliths for essential resources. Therefore, understanding the factors shaping the distribution of rhodoliths and their associated communities along entire distributional ranges is of much relevance for conservational biology, particularly in the scope of future environmental changes. Here we predict suitable habitat areas and identify the main environmental drivers of rhodoliths' variability and of associated epiphytes along a large-scale latitudinal gradient. Occurrence and abundance data were collected throughout the South-western Atlantic coast (SWA) and modelled against high resolution environmental predictors extracted from Bio-Oracle. The main drivers for rhodolith occurrence were light availability and temperature at the bottom of the ocean, while abundance was explained by nitrate, temperature and current velocity. Tropical regions showed the highest abundance of rhodoliths. No latitudinal pattern was detected in the variability of epiphytes abundance. However, significant differences were found between sampled sites regarding the composition of predominant taxa. The predictors influencing such differences were temperature and nitrate. The Tropical region is abundant in species with warm-water affinities, decreasing toward warm temperate region. The expressive occurrence of tropical species not referred before for warm temperate beds indicate a plausible tropicalization event.
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Affiliation(s)
- Vanessa F Carvalho
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| | - Jorge Assis
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Ester A Serrão
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - José M Nunes
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Antônio B Anderson
- Universidade Federal do Espírito Santo - Programa de Pós-graduação em Oceanografia - Laboratório de Ictiologia (Ictiolab) - Campus Goiabeiras - Vitória - ES - Brazil
| | - Manuela B Batista
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - José B Barufi
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - João Silva
- CCMAR - Centre of Marine Sciences, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
| | - Sonia M B Pereira
- Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Paulo A Horta
- Laboratório de Ficologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Programa de Pós Graduação em Oceanografia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Programa de Pós Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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16
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Nunes LT, Morais RA, Longo GO, Sabino J, Floeter SR. Habitat and community structure modulate fish interactions in a neotropical clearwater river. NEOTROPICAL ICHTHYOLOGY 2020. [DOI: 10.1590/1982-0224-2019-0127] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Species interactions can modulate the diversity and enhance the stability of biological communities in aquatic ecosystems. Despite previous efforts to describe fish interactions in tropical rivers, the role of habitat characteristics, community structure, and trophic traits over these interactions is still poorly understood. To investigate among-habitat variation in substratum feeding pressure and agonistic interactions between fishes, we used remote underwater videos in three habitats of a clearwater river in the Central Western, Brazil. We also performed visual surveys to estimate the abundance and biomass of fishes and proposed a trophic classification to understand how these variables can affect fish interactions. Community structure was the main factor affecting the variation in the interactions among the habitats. Biomass was the main variable determining which habitat a fish will feed on, while species abundance determined with how many other species it will interact in the agonistic interaction networks for each habitat. Specific habitats are not only occupied, but also used in distinct ways by the fish community. Overall, our results demonstrate the importance of the heterogeneity of habitats in tropical rivers for the interactions performed by the fishes and how the intensity of these interactions is affected by community structure.
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Affiliation(s)
| | - Renato A. Morais
- Universidade Federal de Santa Catarina, Brazil; James Cook University, Australia
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Mendes TC, Quimbayo JP, Bouth HF, Silva LPS, Ferreira CEL. The omnivorous triggerfish Melichthys niger is a functional herbivore on an isolated Atlantic oceanic island. JOURNAL OF FISH BIOLOGY 2019; 95:812-819. [PMID: 31198985 DOI: 10.1111/jfb.14075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
This study evaluated the functional role of the highly generalist omnivore Melichthys niger in the remote St. Peter and St Paul's Archipelago (SPSPA), Brazil, where grazing herbivorous fishes are very scarce. We analysed patterns of distribution from zero to 30 m deep during three time intervals during the day and sampled different aspects of their feeding behaviour, including diel feeding rate, feeding substrate and diet. The density of M. niger increased with depth (26-30 m) and decreased by the end of the day. Although M. niger did not present a typical herbivore diel feeding pattern, they targeted the epilithic algal matrix as their primary feeding substrate, ingesting predominantly algae and detritus. The characteristic Caulerpa racemosa var. peltata from SPSPA was ingested only as detached fronds. We suggest that in the isolated SPSPA, the single species M. niger may perform a unique role as a link between benthic primary production and higher levels. Further studies on the trophic ecology of omnivorous species are necessary to better understand their roles in a reef system, especially in impoverished areas where they are likely to play a crucial role.
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Affiliation(s)
- Thiago C Mendes
- Department of Ecology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Reef System Ecology and Conservation Laboratory, Department de Biologia Marinha, Universidade Federal Fluminense, Niterói, Brazil
- Instituto do Mar, Universidade Federal de São Paulo, Santos, SP, 11070-100, Brazil
| | - Juan P Quimbayo
- Reef System Ecology and Conservation Laboratory, Department de Biologia Marinha, Universidade Federal Fluminense, Niterói, Brazil
- Macroecology and Biogeographic Laboratory, Department of Ecology and Zoology, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Helena F Bouth
- Reef System Ecology and Conservation Laboratory, Department de Biologia Marinha, Universidade Federal Fluminense, Niterói, Brazil
| | - Luana P S Silva
- Reef System Ecology and Conservation Laboratory, Department de Biologia Marinha, Universidade Federal Fluminense, Niterói, Brazil
| | - Carlos E L Ferreira
- Reef System Ecology and Conservation Laboratory, Department de Biologia Marinha, Universidade Federal Fluminense, Niterói, Brazil
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18
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Teschima MM, Garrido A, Paris A, Nunes FLD, Zilberberg C. Biogeography of the endosymbiotic dinoflagellates (Symbiodiniaceae) community associated with the brooding coral Favia gravida in the Atlantic Ocean. PLoS One 2019; 14:e0213519. [PMID: 30849101 PMCID: PMC6407780 DOI: 10.1371/journal.pone.0213519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/24/2019] [Indexed: 01/07/2023] Open
Abstract
Zooxanthellate corals live in symbiosis with phototrophic dinoflagellates of the family Symbiodiniaceae, enabling the host coral to dwell in shallow, nutrient-poor marine waters. The South Atlantic Ocean is characterized by low coral diversity with high levels of endemism. However, little is known about coral-dinoflagellate associations in the region. This study examined the diversity of Symbiodiniaceae associated with the scleractinian coral Favia gravida across its distributional range using the ITS-2 marker. This brooding coral endemic to the South Atlantic can be found across a wide range of latitudes and longitudes, including the Mid-Atlantic islands. Even though it occurs primarily in shallower environments, F. gravida is among the few coral species that live in habitats with extreme environmental conditions (high irradiance, temperature, and turbidity) such as very shallow tide pools. In the present study, we show that F. gravida exhibits some degree of flexibility in its symbiotic association with zooxanthellae across its range. F. gravida associates predominantly with Cladocopium C3 (ITS2 type Symbiodinium C3) but also with Symbiodinium A3, Symbiodinium linucheae (ITS2 type A4), Cladocopium C1, Cladocopium C130, and Fugacium F3. Symbiont diversity varied across biogeographic regions (Symbiodinium A3 and S. linucheae were found in the Tropical Eastern Atlantic, Cladocopium C1 in the Mid-Atlantic, and other subtypes in the Southwestern Atlantic) and was affected by local environmental conditions. In addition, Symbiodiniaceae diversity was highest in a southwestern Atlantic oceanic island (Rocas Atoll). Understanding the relationship between corals and their algal symbionts is critical in determining the factors that control the ecological niches of zooxanthellate corals and their symbionts, and identifying host-symbiont pairs that may be more resistant to environmental changes.
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Affiliation(s)
- Mariana M. Teschima
- Programa de Pós-Graduação em Biodiversidade e Biologia Evolutiva, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- * E-mail:
| | - Amana Garrido
- Programa de Pós-Graduação em Biodiversidade e Biologia Evolutiva, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alexandra Paris
- Departamento de Biologia Marinha, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Flavia L. D. Nunes
- Laboratoire d’Ecologie Benthique Côtière (LEBCO), DYNECO, Ifremer Centre Bretagne, Plouzané, France
| | - Carla Zilberberg
- Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Instituto Coral Vivo, Parque Yayá, Santa Cruz Cabrália, Bahia, Brazil
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Matheus Z, Francini-Filho RB, Pereira-Filho GH, Moraes FC, de Moura RL, Brasileiro PS, Amado-Filho GM. Benthic reef assemblages of the Fernando de Noronha Archipelago, tropical South-west Atlantic: Effects of depth, wave exposure and cross-shelf positioning. PLoS One 2019; 14:e0210664. [PMID: 30629719 PMCID: PMC6328163 DOI: 10.1371/journal.pone.0210664] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 12/28/2018] [Indexed: 11/28/2022] Open
Abstract
Oceanic islands can be relatively isolated from overfishing and pollution sources, but they are often extremely vulnerable to climate and anthropogenic stress due to their small size and unique assemblages that may rely on a limited larval supply for replenishment. Vulnerability may be especially high when these islands bear permanent human populations or are subjected to regular or intermittent fishing. Since the late 1970's, Brazil has been establishing marine protected areas (MPAs) around its four oceanic island groups, which concentrate high endemism levels and are considered peripheral outposts of the Brazilian Biogeographic Province. In 2018, the Brazilian legally marine protected area increased >10-fold, but most of the ~1,000,000 km2 of MPAs around Brazil's oceanic islands are still unknown and unprotected. Here, we provide the first detailed quantitative baseline of benthic reef assemblages, including shallow and mesophotic zones, of the Fernando de Noronha Archipelago (FNA). The archipelago is partially protected as a no-take MPA and recognized by the UNESCO as a World Heritage Site, but also represents the only Brazilian oceanic island with a large permanent human population (3,000 people), mass tourism (up to 90,000 people per year) and a permanent small-scale fishing community. The influence of depth, wave exposure, and distance from the island and shelf edge on the structure of benthic assemblages was assessed from benthic photoquadrats obtained in 12 sites distributed in the lee and windward shores of the archipelago. Unique assemblages and discriminating species were identified using Multivariate Regression Trees, and environmental drivers of dominant assemblages’ components were evaluated using Boosted Regression Trees. A total of 128 benthic taxa were recorded and 5 distinct assemblages were identified. Distance to the insular slope, depth and exposure were the main drivers of assemblages’ differentiation. Our results represent an important baseline for evaluating changes in benthic assemblages due to increased local and global stressors.
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Affiliation(s)
- Zaira Matheus
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | | | - Guilherme Henrique Pereira-Filho
- Laboratório de Ecologia e Conservação Marinha, Instituto do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Santos, SP, Brazil
- * E-mail: (GHPF); (GMAF)
| | - Fernando C. Moraes
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rodrigo L. de Moura
- Instituto de Biologia, Laboratório de Sistemas Avançados de Gestão da Produção (SAGE), Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Poliana S. Brasileiro
- Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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21
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Andrades R, Reis-Filho JA, Macieira RM, Giarrizzo T, Joyeux JC. Endemic fish species structuring oceanic intertidal reef assemblages. Sci Rep 2018; 8:10791. [PMID: 30018347 PMCID: PMC6050318 DOI: 10.1038/s41598-018-29088-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 07/02/2018] [Indexed: 11/16/2022] Open
Abstract
Intertidal reef environments are facing a global crisis as climate changes are causing sea-level rise. Synergistically, other human-induced impacts (e.g., sewage, habitat loss) caused by concentration of human populations near the coast increase the natural vulnerability of intertidal ecosystems. However, the effect of these threats have long been neglected due, in part, to a limited knowledge of some aspects of intertidal fish ecology. We tested what are the main differences and drivers in fish assemblages structure between tidepools in three oceanic and three continental shelf (coastal) sites of the tropical southwestern Atlantic (Brazilian Province) using standardized sampling methods. Oceanic and coastal fish assemblages were distinctly structured at the trophic and composition levels. The noteworthy endemism species rate (38–44%) and high densities in oceanic sites are supported by resident species restricted to mid and high-shore tidepools where herbivores were the major trophic group. The coastal sites, on the other hand, were dominated by widely distributed and carnivore species. Physical (substrate type, pool height, subtidal distance and rock coverage), biological (sessile animal coverage) and chemical (salinity) parameters act as the driving forces influencing fish spatial occupancy. Here, clear evidences of high fish endemism and importance of endemics structuring oceanic communities may act as the last straw in favor of the conservation of oceanic intertidal reefs.
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Affiliation(s)
- Ryan Andrades
- Laboratório de Ictiologia, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, Espírito Santo, 29075-910, Brazil. .,Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Av. Perimetral, 2651, Terra Firme, Belém, 66075-110, Brazil.
| | - José Amorim Reis-Filho
- Instituto de Biologia, Universidade Federal da Bahia, Campus Ondina, Salvador, Bahia, 40170-115, Brazil.,Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Av. Perimetral, 2651, Terra Firme, Belém, 66075-110, Brazil
| | - Raphael M Macieira
- Laboratório de Ecologia Marinha, Universidade Vila Velha, Rua Comissário José Dantas de Melo, 21, Boa Vista, Vila Velha, Espírito Santo, 29102-770, Brazil
| | - Tommaso Giarrizzo
- Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Universidade Federal do Pará, Av. Perimetral, 2651, Terra Firme, Belém, 66075-110, Brazil
| | - Jean-Christophe Joyeux
- Laboratório de Ictiologia, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, Espírito Santo, 29075-910, Brazil
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22
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Aued AW, Smith F, Quimbayo JP, Cândido DV, Longo GO, Ferreira CEL, Witman JD, Floeter SR, Segal B. Large-scale patterns of benthic marine communities in the Brazilian Province. PLoS One 2018; 13:e0198452. [PMID: 29883496 PMCID: PMC5993233 DOI: 10.1371/journal.pone.0198452] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 05/18/2018] [Indexed: 11/19/2022] Open
Abstract
As marine ecosystems are influenced by global and regional processes, standardized information on community structure has become crucial for assessing broad-scale responses to natural and anthropogenic disturbances. Extensive biogeographic provinces, such as the Brazilian Province in the southwest Atlantic, present numerous theoretical and methodological challenges for understanding community patterns on a macroecological scale. In particular, the Brazilian Province is composed of a complex system of heterogeneous reefs and a few offshore islands, with contrasting histories and geophysical-chemical environments. Despite the large extent of the Brazilian Province (almost 8,000 kilometers), most studies of shallow benthic communities are qualitative surveys and/or have been geographically restricted. We quantified community structure of shallow reef habitats from 0° to 27°S latitude using a standard photographic quadrat technique. Percent cover data indicated that benthic communities of Brazilian reefs were dominated by algal turfs and frondose macroalgae, with low percent cover of reef-building corals. Community composition differed significantly among localities, mostly because of their macroalgal abundance, despite reef type or geographic region, with no evident latitudinal pattern. Benthic diversity was lower in the tropics, contrary to the general latitudinal diversity gradient pattern. Richness peaked at mid-latitudes, between 20°S to 23°S, where it was ~3.5-fold higher than localities with the lowest richness. This study provides the first large-scale description of benthic communities along the southwestern Atlantic, providing a baseline for macroecological comparisons and evaluation of future impacts. Moreover, the new understanding of richness distribution along Brazilian reefs will contribute to conservation planning efforts, such as management strategies and the spatial prioritization for the creation of new marine protected areas.
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Affiliation(s)
- Anaide W. Aued
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Marine Macroecology and Biogeography Lab, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Laboratório de Ecologia de Ambientes Recifais, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, United States of America
- * E-mail:
| | - Franz Smith
- Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, United States of America
| | - Juan P. Quimbayo
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Marine Macroecology and Biogeography Lab, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Davi V. Cândido
- Laboratório de Ecologia de Ambientes Recifais, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Guilherme O. Longo
- Marine Ecology Lab, Department of Oceanography and Limnology, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Carlos E. L. Ferreira
- Reef Systems Ecology and Conservation Lab, Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil
| | - Jon D. Witman
- Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, United States of America
| | - Sergio R. Floeter
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Marine Macroecology and Biogeography Lab, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Bárbara Segal
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Laboratório de Ecologia de Ambientes Recifais, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
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23
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Soares MDO. Climate change and regional human pressures as challenges for management in oceanic islands, South Atlantic. MARINE POLLUTION BULLETIN 2018; 131:347-355. [PMID: 29886957 DOI: 10.1016/j.marpolbul.2018.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
This study aimed to determine the main anthropogenic pressures and the effectiveness of management practices in marine protected areas (MPAs) (Rocas Atoll and Fernando de Noronha Archipelago, South Atlantic). The MPAs exhibited high management effectiveness over the last 25 years due to the control of local pressures (i.e., fishing and tourism). However, the increase in regional and global pressures, such as invasive species, marine debris, and climate change stressors (sea-level rise, extreme events, range shifts of species, warming, and ocean acidification), are environmental risks that need to be considered during conservation. Strategies for large scale marine spatial planning, as well as proposals for an integrated management of MPAs (including coral reef islands and seamounts) by the articulation of a network, which reduces regional human pressures and improves ocean governance were discussed. This study provided insights into the challenges faced in the management of MPAs in a rapidly changing ocean.
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Affiliation(s)
- Marcelo de Oliveira Soares
- Instituto de Ciências do Mar-LABOMAR, Universidade Federal do Ceará, Av. da Abolição, 3207, CEP 60.165-081, 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.
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Zatelli GA, Philippus AC, Falkenberg M. An overview of odoriferous marine seaweeds of the Dictyopteris genus: insights into their chemical diversity, biological potential and ecological roles. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Morais RA, Ferreira CEL, Floeter SR. Spatial patterns of fish standing biomass across Brazilian reefs. JOURNAL OF FISH BIOLOGY 2017; 91:1642-1667. [PMID: 29076535 DOI: 10.1111/jfb.13482] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 09/09/2017] [Indexed: 06/07/2023]
Abstract
A large fish-count dataset from the Brazilian province was used to describe spatial patterns in standing biomass and test if total biomass, taxonomic and functional trophic structure vary across nested spatial scales. Taxonomic and functional structure varied more among localities and sites than among regions. Total biomass was generally higher at oceanic islands and remote or protected localities along the coast. Lower level carnivores comprised a large part of the biomass at almost all localities (mean of 44%), zooplanktivores never attained more than 14% and omnivores were more representative of subtropical reefs and oceanic islands (up to 66% of total biomass). Small and large herbivores and detritivores varied greatly in their contribution to total biomass, with no clear geographical patterns. Macrocarnivores comprised less than 12% of the biomass anywhere, except for two remote localities. Top predators, such as sharks and very large groupers, were rare and restricted to a few reefs, suggesting that their ecological function might have already been lost in many Brazilian reefs.
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Affiliation(s)
- R A Morais
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
- Marine Macroecology and Biogeography Lab, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - C E L Ferreira
- Reef Systems Ecology and Conservation Lab, Departamento de Biologia Marinha, Universidade Federal Fluminense, Niterói, Rio de Janeiro 24001-970, Brazil
| | - S R Floeter
- Programa de Pós-Graduação em Ecologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
- Marine Macroecology and Biogeography Lab, Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
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Beisiegel K, Darr A, Gogina M, Zettler ML. Benefits and shortcomings of non-destructive benthic imagery for monitoring hard-bottom habitats. MARINE POLLUTION BULLETIN 2017; 121:5-15. [PMID: 28502451 DOI: 10.1016/j.marpolbul.2017.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 03/23/2017] [Accepted: 04/06/2017] [Indexed: 05/17/2023]
Abstract
Hard-bottom habitats with complex topography and fragile epibenthic communities are still not adequately considered in benthic monitoring programs, despite their potential ecological importance. While indicators of ecosystem health are defined by major EU directives, methods commonly used to measure them are deficient in quantification of biota on hard surfaces. We address the suitability of seafloor imaging for monitoring activities. We compared the ability of high-resolution imagery and physical sampling methods (grab, dredge, SCUBA-diving) to detect taxonomic and functional components of epibenthos. Results reveal that (1) with minimal habitat disturbance on large spatial scales, imagery provides valuable, cost-effective assessment of rocky reef habitat features and community structure, (2) despite poor taxonomic resolution, image-derived data for habitat-forming taxa might be sufficient to infer richness of small sessile and mobile fauna, (3) physical collections are necessary to develop a robust record of species richness, including species-level taxonomic identifications, and to establish a baseline.
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Affiliation(s)
- Kolja Beisiegel
- Leibniz Institute for Baltic Sea Research Warnemünde, Seestr.15, 18119 Rostock, Germany.
| | - Alexander Darr
- Leibniz Institute for Baltic Sea Research Warnemünde, Seestr.15, 18119 Rostock, Germany
| | - Mayya Gogina
- Leibniz Institute for Baltic Sea Research Warnemünde, Seestr.15, 18119 Rostock, Germany
| | - Michael L Zettler
- Leibniz Institute for Baltic Sea Research Warnemünde, Seestr.15, 18119 Rostock, Germany
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PINHEIRO BARBARAR, PEREIRA NATANS, AGOSTINHO PAULAG, MONTES MANUELJ. Population dynamics of Siderastrea stellata Verrill, 1868 from Rocas Atoll, RN: implications for predicted climate change impacts at the only South Atlantic atoll. AN ACAD BRAS CIENC 2017. [DOI: 10.1590/0001-3765201720160387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Small Marine Protected Areas in Fiji Provide Refuge for Reef Fish Assemblages, Feeding Groups, and Corals. PLoS One 2017; 12:e0170638. [PMID: 28122006 PMCID: PMC5266309 DOI: 10.1371/journal.pone.0170638] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 01/09/2017] [Indexed: 11/23/2022] Open
Abstract
The establishment of no-take marine protected areas (MPAs) on coral reefs is a common management strategy for conserving the diversity, abundance, and biomass of reef organisms. Generally, well-managed and enforced MPAs can increase or maintain the diversity and function of the enclosed coral reef, with some of the benefits extending to adjacent non-protected reefs. A fundamental question in coral reef conservation is whether these benefits arise within small MPAs (<1 km2), because larval input of reef organisms is largely decoupled from local adult reproduction. We examined the structure of fish assemblages, composition of fish feeding groups, benthic cover, and key ecosystem processes (grazing, macroalgal browsing, and coral replenishment) in three small (0.5–0.8 km2) no-take MPAs and adjacent areas where fisheries are allowed (non-MPAs) on coral reefs in Fiji. The MPAs exhibited greater species richness, density, and biomass of fishes than non-MPAs. Furthermore, MPAs contained a greater abundance and biomass of grazing herbivores and piscivores as well as a greater abundance of cleaners than fished areas. We also found differences in fish associations when foraging, with feeding groups being generally more diverse and having greater biomass within MPAs than adjacent non-MPAs. Grazing by parrotfishes was 3–6 times greater, and macroalgal browsing was 3–5 times greater in MPAs than in non-MPAs. On average, MPAs had 260–280% as much coral cover and only 5–25% as much macroalgal cover as their paired non-MPA sites. Finally, two of the three MPAs had three-fold more coral recruits than adjacent non-MPAs. The results of this study indicate that small MPAs benefit not only populations of reef fishes, but also enhance ecosystem processes that are critical to reef resilience within the MPAs.
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Reis RE, Albert JS, Di Dario F, Mincarone MM, Petry P, Rocha LA. Fish biodiversity and conservation in South America. JOURNAL OF FISH BIOLOGY 2016; 89:12-47. [PMID: 27312713 DOI: 10.1111/jfb.13016] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 04/14/2016] [Indexed: 05/25/2023]
Abstract
The freshwater and marine fish faunas of South America are the most diverse on Earth, with current species richness estimates standing above 9100 species. In addition, over the last decade at least 100 species were described every year. There are currently about 5160 freshwater fish species, and the estimate for the freshwater fish fauna alone points to a final diversity between 8000 and 9000 species. South America also has c. 4000 species of marine fishes. The mega-diverse fish faunas of South America evolved over a period of >100 million years, with most lineages tracing origins to Gondwana and the adjacent Tethys Sea. This high diversity was in part maintained by escaping the mass extinctions and biotic turnovers associated with Cenozoic climate cooling, the formation of boreal and temperate zones at high latitudes and aridification in many places at equatorial latitudes. The fresh waters of the continent are divided into 13 basin complexes, large basins consolidated as a single unit plus historically connected adjacent coastal drainages, and smaller coastal basins grouped together on the basis of biogeographic criteria. Species diversity, endemism, noteworthy groups and state of knowledge of each basin complex are described. Marine habitats around South America, both coastal and oceanic, are also described in terms of fish diversity, endemism and state of knowledge. Because of extensive land use changes, hydroelectric damming, water divergence for irrigation, urbanization, sedimentation and overfishing 4-10% of all fish species in South America face some degree of extinction risk, mainly due to habitat loss and degradation. These figures suggest that the conservation status of South American freshwater fish faunas is better than in most other regions of the world, but the marine fishes are as threatened as elsewhere. Conserving the remarkable aquatic habitats and fishes of South America is a growing challenge in face of the rapid anthropogenic changes of the 21st century, and deserves attention from conservationists and policy makers.
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Affiliation(s)
- R E Reis
- PUCRS, Laboratory of Vertebrate Systematics, Av. Ipiranga, 6681, 90619-900, Porto Alegre, Brazil
| | - J S Albert
- University of Louisiana at Lafayette, Lafayette, LA, 70504-2451, U.S.A
| | - F Di Dario
- Universidade Federal do Rio de Janeiro (UFRJ), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Grupo de Sistemática e Biologia Evolutiva, Caixa Postal 119331, 27910-970, Macaé, RJ, Brazil
| | - M M Mincarone
- Universidade Federal do Rio de Janeiro (UFRJ), Núcleo em Ecologia e Desenvolvimento Socioambiental de Macaé (NUPEM), Grupo de Sistemática e Biologia Evolutiva, Caixa Postal 119331, 27910-970, Macaé, RJ, Brazil
| | - P Petry
- Museum of Comparative Zoology, Harvard University, 26 Oxford St Cambridge, MA, 02138, U.S.A
| | - L A Rocha
- Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Dr, San Francisco, CA, 94118, U.S.A
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