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Bernal-Ibáñez A, Cacabelos E, Triay-Portella R, Ramalhosa P, Gestoso I. Assessing climatic conditions and biotic interactions shaping the success of Cystoseira foeniculacea early-life stages. JOURNAL OF PHYCOLOGY 2024; 60:1485-1497. [PMID: 39444142 DOI: 10.1111/jpy.13516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 09/15/2024] [Accepted: 09/18/2024] [Indexed: 10/25/2024]
Abstract
Early-life stages of canopy-forming macroalgae are critical for the maintenance of natural populations and the success of restoration actions. Unfortunately, the abiotic conditions and biotic interactions shaping the success of these stages have received less attention than the interactions shaping the success of adults. Here, we combined field and mesocosm experiments to explore the effects of temperature, herbivory, and canopy presence on the development of early-life stages of the brown seaweed Cystoseira foeniculacea. We assessed these effects by examining changes in recruit density and size. After recruiting zygotes under laboratory conditions, we conducted one laboratory and three field experiments. In the first field experiment, the density of recruits decreased over time in all rockpools and was negatively affected by rising temperatures and turf cover. Additionally, a marine heatwave (MHW; 11 days >25°C) was recorded in the donor pools, producing strong decay in the density of transplanted recruits and a significant reduction of the mature canopy. The second field experiment tested the survival of recruits based on their positioning within the canopy. We observed a higher density of recruits when placed at the edge or outside the canopy compared to recruits placed under the canopy. In the third field experiment, an herbivory-exclusion experiment, we show how density of recruits decreased in less than 48 h in noncaged treatments. In the laboratory, we conducted a thermotolerance experiment under controlled conditions, exposing the recruits to 19, 22, 25, 28, and 31°C for 7 weeks to assess thermal impacts on their survival and growth. Temperatures above the 25°C threshold reduced the density and size of the recruits. This study sheds light on the performance of the early-life stages of a Cystoseira spp. in Macaronesia, showing a low survival ratio against the current pressures even in the context of the potential refuge provided by the intertidal rockpools.
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Affiliation(s)
- Alejandro Bernal-Ibáñez
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional Para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
- Faculty of Life Sciences, University of Madeira, Funchal, Portugal
| | - Eva Cacabelos
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional Para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
- Faculty of Life Sciences, University of Madeira, Funchal, Portugal
- Hydrosphere-Environmental Laboratory for the Study of Aquatic Ecosystems, Vigo, Spain
- Centro Oceanográfico de Vigo (COV-IEO), CSIC, Vigo, Spain
| | - Raul Triay-Portella
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional Para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
- Faculty of Life Sciences, University of Madeira, Funchal, Portugal
- Grupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Canary Islands, Spain
| | - Patrício Ramalhosa
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional Para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
- Faculty of Life Sciences, University of Madeira, Funchal, Portugal
| | - Ignacio Gestoso
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional Para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
- Faculty of Life Sciences, University of Madeira, Funchal, Portugal
- Department of Biology, Faculty of Marine and Environmental Sciences & Marine Research Institute (INMAR), Universidad de Cádiz (UCA), Puerto Real, Cádiz, Spain
- Smithsonian Environmental Research Center (SERC), Edgewater, Maryland, USA
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Chebaane S, Engelen AH, Pais MP, Silva R, Gizzi F, Triay-Portella R, Florido M, Monteiro JG. Evaluating fish foraging behaviour on non-indigenous Asparagopsis taxiformis using a remote video foraging system. MARINE ENVIRONMENTAL RESEARCH 2024; 202:106766. [PMID: 39357202 DOI: 10.1016/j.marenvres.2024.106766] [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: 07/01/2024] [Revised: 09/17/2024] [Accepted: 09/23/2024] [Indexed: 10/04/2024]
Abstract
The proliferation of pest and invasive marine macroalgae threatens coastal ecosystems, with biotic interactions, including direct effects such as grazing and indirect effects such as the trophic cascades, where one species indirectly affects another through its interactions with a third species, play a critical role in determining the resistance of local communities to these invasions. This study examines the foraging behaviour and preference of native fish communities toward native (Halopteris scoparia, Sargassum vulgare) and non-indigenous (Asparagopsis taxiformis) macroalgae using the Remote Video Foraging System (RVFS). Fifty-four weedpops were deployed across three locations to present these macroalgae, while associated epifaunal assemblages were also collected. Video analysis revealed that four common fish species displayed preference towards native macroalgae, possibly due to by the presence of zoobenthos rather than herbivory. This observation suggests that these fish species identified the macroalgae as a habitat that harboured their preferred food items. In contrast, A. taxiformis was consistently avoided, suggesting limited integration into the local food web. Site-specific variations in fish-macroalgae interactions and epifaunal diversity highlighted the complexity of these dynamics. This study contributes to understanding of the ecological implications of invasive macroalgae and supports the use of RVFS as a tool for assessing local biotic resistance against non-indigenous species in coastal ecosystems globally.
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Affiliation(s)
- Sahar Chebaane
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal; Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
| | | | - Miguel Pessanha Pais
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal; MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Rodrigo Silva
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - Francesca Gizzi
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - Raül Triay-Portella
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Grupo en Biodiversidad y Conservación, IU-ECOAQUA, Universidad de Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Marta Florido
- Laboratorio de Biología Marina, Departamento de Zoología, Facultad de Biología de la Universidad de Sevilla, Av. de la Reina Mercedes, 41012, Sevilla, Spain
| | - João Gama Monteiro
- MARE - Marine and Environmental Sciences Centre / ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Faculty of Life Sciences, University of Madeira, 9000, Funchal, Portugal
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Romero J, Alonso H, Freitas L, Granadeiro JP. Food web of the oceanic region of the archipelago of Madeira: The role of marine megafauna in the subtropical northeast Atlantic ecosystem. MARINE ENVIRONMENTAL RESEARCH 2024; 195:106382. [PMID: 38309039 DOI: 10.1016/j.marenvres.2024.106382] [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: 06/09/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/05/2024]
Abstract
Many oceanic areas are still in need of baseline information on their structure and functioning. This is particularly important due to the ever-increasing impacts of global changes, which have led to the decline of marine life, and top predators in particular. The study of the structure and functioning of food webs can help understand the consequences of the disappearance of this group in marine ecosystems. Here, we develop a mass-balanced model for the marine Exclusive Economic Zone of the archipelago of Madeira, with emphasis on the role of marine megafauna in this ecosystem. A total of 50 functional groups were defined, representing coastal and open ocean areas, and epipelagic and deep-sea levels. The total biomass of the Madeira system was calculated at 52.68 t km-2, with lower trophic level organisms comprising 89.9 % of its biomass. Marine megafauna, namely pelagic sharks and coastal birds had the highest impacts across other trophic levels and were classified as keystone species, together with monk seals. The food web was characterized by a linear-like food chain, with a large proportion of specialized organisms, including dolphins, shearwaters, and large pelagic fish. The low mean trophic level of the system was 2.03, much lower than that of fisheries (4.3) targeting mainly tunas and Black scabbardfish. Considering the importance of marine megafauna in this food web and the threats they are facing; monitoring studies of key species in the region should be a priority. This study can now be used to build a needed ecosystem-based fisheries management and integrate conservation measures to declining species.
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Affiliation(s)
- Joana Romero
- Centre for Environmental and Marine Studies (CESAM), Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.
| | - Hany Alonso
- Sociedade Portuguesa para o Estudo das Aves, Av. Alm. Gago Coutinho 46A, 1700-031, Lisbon, Portugal
| | - Luís Freitas
- Museu da Baleia da Madeira, Rua Garcia Moniz 1, 9200-031, Caniçal, Madeira, Portugal
| | - José Pedro Granadeiro
- Centre for Environmental and Marine Studies (CESAM), Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal
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Chebaane S, Pais MP, Engelen AH, Ramalhosa P, Silva R, Gizzi F, Canning-Clode J, Bernal-Ibáñez A, Monteiro JG. Exploring foraging preference of local fish species towards non-indigenous fouling communities near marinas: Insights from Remote Video Foraging System (RVFS) trials. MARINE POLLUTION BULLETIN 2024; 198:115871. [PMID: 38086107 DOI: 10.1016/j.marpolbul.2023.115871] [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: 10/16/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024]
Abstract
Non-indigenous species (NIS) spread from marinas to natural environments is influenced by niche availability, habitat suitability, and local biotic resistance. This study explores the effect of indigenous fish feeding behaviour on NIS proliferation using fouling communities, pre-grown on settlement plates, as two distinct, representative models: one from NIS-rich marinas and the other from areas outside marinas with fewer NIS. These plates were mounted on a Remote Video Foraging System (RVFS) near three marinas on Madeira Island. After 24-h, NIS abundance was reduced by 3.5 %. Canthigaster capistrata's preference for marinas plates suggests potential biotic resistance. However, Sparisoma cretense showed equal biting frequencies for both plate types. The cryptogenic ascidian Trididemnum cereum was the preferred target for the fish. Our study introduces a global framework using RVFS for in-situ experiments, replicable across divers contexts (e.g., feeding behaviour, biotic resistance), which can be complemented by metabarcoding and isotopic analysis to confirm consumption patterns.
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Affiliation(s)
- Sahar Chebaane
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal.
| | - Miguel Pessanha Pais
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Portugal; Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | | | - Patrício Ramalhosa
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - Rodrigo Silva
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - Francesca Gizzi
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - João Canning-Clode
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Smithsonian Environmental Research Center, Edgewater, MD 21037, USA
| | - Alejandro Bernal-Ibáñez
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal
| | - João Gama Monteiro
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Regional Agency for the Development of Research, Technology and Innovation (ARDITI), Funchal, Portugal; Faculty of Life Sciences, University of Madeira, 9000 Funchal, Portugal
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Costa PR, Churro C, Rodrigues SM, Frazão B, Barbosa M, Godinho L, Soliño L, Timóteo V, Gouveia N. A 15-Year Retrospective Review of Ciguatera in the Madeira Islands (North-East Atlantic, Portugal). Toxins (Basel) 2023; 15:630. [PMID: 37999493 PMCID: PMC10674775 DOI: 10.3390/toxins15110630] [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: 10/05/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
The first ciguatera fish poisoning (CFP) in Portugal dates from 2008 when 11 people reported CFP symptoms after consuming a 30 kg amberjack caught around the Selvagens Islands (Madeira Archipelago). Since then, 49 human poisonings have been reported. The emergence of a new threat challenged scientists and regulators, as methods for toxic microalgae analyses and ciguatoxin (CTX) detection were not implemented. To minimise the risk of ciguatera, the Madeira Archipelago authorities interdicted fisheries in Selvagens Islands and banned the capture of amberjacks weighing more than 10 kg in the entire region of Madeira Archipelago. The accurate identification and quantification of the benthic toxin-producing algae species spreading to new areas require efforts in terms of both microscopy and molecular techniques. Two ciguatera-causing dinoflagellates, Gambierdiscus excentricus and Gambierdiscus australes, were identified in the Madeira Island and Selvagens sub-archipelago, respectively. Regarding the CTX analysis (N2a cell-based assay and LC-MS) in fish, the results indicate that the Selvagens Islands are a ciguatera risk area and that fish vectoring CTX are not limited to top predator species. Nevertheless, advances and improvements in screening methods for the fast detection of toxicity in seafood along with certified reference material and sensitive and selective targeted analytical methods for the determination of CTX content are still pending. This study aims to revise the occurrence of ciguatera cases in the Madeira Archipelago since its first detection in 2008, to discuss the risk management strategy that was implemented, and to provide a summary of the available data on the bioaccumulation of CTX in marine fish throughout the marine food web, taking into consideration their ecological significance, ecosystem dynamics, and fisheries relevance.
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Affiliation(s)
- Pedro Reis Costa
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
- CCMAR—Centre of Marine Sciences, University of Algarve, Campus of Gambelas, 8005-139 Faro, Portugal
| | - Catarina Churro
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
- 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 Porto, Portugal
| | - Susana Margarida Rodrigues
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
| | - Bárbara Frazão
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
| | - Miguel Barbosa
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
| | - Lia Godinho
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
| | - Lucía Soliño
- IPMA—Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165 Lisbon, Portugal; (C.C.); (S.M.R.); (B.F.); (M.B.); (L.G.); (L.S.)
| | - Viriato Timóteo
- Laboratório Regional de Veterinária e Segurança Alimentar, Caminho das Quebradas de Baixo nº 79, S. Martinho, 9000-254 Funchal, Portugal; (V.T.); (N.G.)
| | - Neide Gouveia
- Laboratório Regional de Veterinária e Segurança Alimentar, Caminho das Quebradas de Baixo nº 79, S. Martinho, 9000-254 Funchal, Portugal; (V.T.); (N.G.)
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Effect of Depth across a Latitudinal Gradient in the Structure of Rhodolith Seabeds and Associated Biota across the Eastern Atlantic Ocean. DIVERSITY 2023. [DOI: 10.3390/d15010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Rhodolith seabeds are ‘ecosystem engineers’ composed of free-living calcareous red macroalgae, which create extensive marine habitats. This study addressed how depth influenced the structure (size and morphology) of rhodoliths and the abundance of associated floral and faunal epibionts across the Eastern Atlantic Ocean. Sampling was carried out at two sites within five regions (Brittany, Galicia, Madeira, Gran Canaria, and Principe Island), from temperate to tropical, covering a latitudinal gradient of 47°, in three depth strata (shallow, intermediate and deep), according to the rhodolith bathymetrical range in each region. Depth typically affected the rhodolith size at all regions; the largest nodules were found in the intermediate and deep strata, while rhodolith sphericity was larger at the shallow depth strata. Higher biomasses of attached macroalgae (epiphytes) were observed at depths where rhodoliths were larger. The abundance of epifauna was variable across regions and depth strata. In general, the occurrence, structure, and abundance of the associated biota across rhodolith habitats were affected by depth, with local variability (i.e., sites within regions) often displaying a more significant influence than the regional (large-scale) variation. Overall, this study showed that the rhodolith morphology and associated epibionts (flora and fauna) were mostly affected by depth, irrespective of latitude.
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From Plates to Baits: Using a Remote Video Foraging System to Study the Impact of Foraging on Fouling Non-Indigenous Species. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10050611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Marinas are a gateway for the introduction and establishment of non-indigenous species (NIS). In these habitats, competition and predation are crucial determinants for NIS establishment and invasiveness. However, fish trophic preferences and biotic effects inside marinas are poorly known. This study proposes a novel method that combines the deployment of settlement plates to recruit different assemblages, followed by their use as bait in remote underwater video systems. This combined approach, addressed as a remote video foraging system (RVFS), can record fish foraging behaviour, including feeding choices and their impacts on fouling assemblage composition. An experimental RVFS trial carried out in a marina of Madeira Island, Portugal (NE Atlantic), identified the Mediterranean parrotfish, Sparisoma cretense, as the most important fouling grazer in the area. S. cretense behaved as a generalist and increased the heterogeneity of fouling assemblages, which can hamper NIS dominance of the fouling and reduce the pressure of propagules from the marina to the natural environment. The RVFS tool was useful to understand the trophic links between foragers and fouling and has the potential to provide relevant information for the management of NIS introductions, establishment and spread.
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Cacabelos E, Gestoso I, Ramalhosa P, Canning-Clode J. Role of non-indigenous species in structuring benthic communities after fragmentation events: an experimental approach. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02768-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Costa PR, Estévez P, Soliño L, Castro D, Rodrigues SM, Timoteo V, Leao-Martins JM, Santos C, Gouveia N, Diogène J, Gago-Martínez A. An Update on Ciguatoxins and CTX-like Toxicity in Fish from Different Trophic Levels of the Selvagens Islands (NE Atlantic, Madeira, Portugal). Toxins (Basel) 2021; 13:toxins13080580. [PMID: 34437451 PMCID: PMC8402339 DOI: 10.3390/toxins13080580] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 07/28/2021] [Accepted: 08/17/2021] [Indexed: 11/17/2022] Open
Abstract
The Selvagens Islands, which are a marine protected area located at the southernmost point of the Portuguese maritime zone, have been associated with fish harboring ciguatoxins (CTX) and linked to ciguatera fish poisonings. This study reports the results of a field sampling campaign carried out in September 2018 in these remote and rarely surveyed islands. Fifty-six fish specimens from different trophic levels were caught for CTX-like toxicity determination by cell-based assay (CBA) and toxin content analysis by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Notably, high toxicity levels were found in fish with an intermediate position in the food web, such as zebra seabream (Diplodus cervinus) and barred hogfish (Bodianus scrofa), reaching levels up to 0.75 µg CTX1B equivalent kg−1. The LC-MS/MS analysis confirmed that C-CTX1 was the main toxin, but discrepancies between CBA and LC-MS/MS in D. cervinus and top predator species, such as the yellowmouth barracuda (Sphyraena viridis) and amberjacks (Seriola spp.), suggest the presence of fish metabolic products, which need to be further elucidated. This study confirms that fish from coastal food webs of the Selvagens Islands represent a high risk of ciguatera, raising important issues for fisheries and environmental management of the Selvagens Islands.
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Affiliation(s)
- Pedro Reis Costa
- IPMA—Portuguese Institute of the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; (L.S.); (S.M.R.)
- CCMAR—Centre of Marine Sciences, Campus of Gambelas, University of Algarve, 8005-139 Faro, Portugal
- Correspondence: (P.R.C.); (J.D.); (A.G.-M.)
| | - Pablo Estévez
- Biomedical Research Center (CINBIO), Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain; (P.E.); (D.C.); (J.M.L.-M.)
| | - Lucía Soliño
- IPMA—Portuguese Institute of the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; (L.S.); (S.M.R.)
- CCMAR—Centre of Marine Sciences, Campus of Gambelas, University of Algarve, 8005-139 Faro, Portugal
| | - David Castro
- Biomedical Research Center (CINBIO), Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain; (P.E.); (D.C.); (J.M.L.-M.)
| | - Susana Margarida Rodrigues
- IPMA—Portuguese Institute of the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; (L.S.); (S.M.R.)
| | - Viriato Timoteo
- Regional Fisheries Management—Madeira Government, DSI-DRP, Estrada da Pontinha, 9004-562 Funchal, Madeira, Portugal; (V.T.); (N.G.)
| | - José Manuel Leao-Martins
- Biomedical Research Center (CINBIO), Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain; (P.E.); (D.C.); (J.M.L.-M.)
| | - Carolina Santos
- Instituto das Florestas e Conservação da Natureza, IP-RAM, Secretaria Regional do Ambiente, e Recursos Naturais e Alterações Climáticas, Regional Government of Madeira, Rua João de Deus, n.º 12 E/F, R/C-C, 9050-027 Funchal, Madeira, Portugal;
| | - Neide Gouveia
- Regional Fisheries Management—Madeira Government, DSI-DRP, Estrada da Pontinha, 9004-562 Funchal, Madeira, Portugal; (V.T.); (N.G.)
| | - Jorge Diogène
- IRTA, Ctra Poble Nou km 5.5, 43540 Sant Carles de la Ràpita, Spain
- Correspondence: (P.R.C.); (J.D.); (A.G.-M.)
| | - Ana Gago-Martínez
- Biomedical Research Center (CINBIO), Department of Analytical and Food Chemistry, Campus Universitario de Vigo, University of Vigo, 36310 Vigo, Spain; (P.E.); (D.C.); (J.M.L.-M.)
- Correspondence: (P.R.C.); (J.D.); (A.G.-M.)
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Tanner SE, Giacomello E, Menezes GM, Mirasole A, Neves J, Sequeira V, Vasconcelos RP, Vieira AR, Morrongiello JR. Marine regime shifts impact synchrony of deep‐sea fish growth in the northeast Atlantic. OIKOS 2020. [DOI: 10.1111/oik.07332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susanne E. Tanner
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
- Depto de Biologia Animal, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
| | - Eva Giacomello
- IMAR – Inst. do Mar and Centro I&D Okeanos – Univ. dos Açores Horta Portugal
| | - Gui M. Menezes
- IMAR – Inst. do Mar and Centro I&D Okeanos – Univ. dos Açores Horta Portugal
- Univ. dos Açores, Depto de Oceanografia e Pescas Horta Portugal
| | - Alice Mirasole
- Stazione Zoologica Anton Dohrn, Villa Dohrn‐Benthic Ecology Center Ischia Italy
| | - João Neves
- IMAR – Inst. do Mar and Centro I&D Okeanos – Univ. dos Açores Horta Portugal
| | - Vera Sequeira
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
- Depto de Biologia Animal, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
| | | | - Ana Rita Vieira
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
- Depto de Biologia Animal, Faculdade de Ciências, Univ. de Lisboa Lisboa Portugal
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11
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Tester PA, Litaker RW, Berdalet E. Climate change and harmful benthic microalgae. HARMFUL ALGAE 2020; 91:101655. [PMID: 32057343 DOI: 10.1016/j.hal.2019.101655] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 06/10/2023]
Abstract
Sea surface temperatures in the world's oceans are projected to warm by 0.4-1.4 °C by mid twenty-first century causing many tropical and sub-tropical harmful dinoflagellate genera like Gambierdiscus, Fukuyoa and Ostreopsis (benthic harmful algal bloom species, BHABs) to exhibit higher growth rates over much of their current geographic range, resulting in higher population densities. The primary exception to this trend will be in the tropics where temperatures exceed species-specific upper thermal tolerances (30-31 °C) beyond which growth slows significantly. As surface waters warm, migration to deeper habitats is expected to provide refuge. Range extensions of several degrees of latitude also are anticipated, but only where species-specific habitat requirements can be met (e.g., temperature, suitable substrate, low turbulence, light, salinity, pH). The current understanding of habitat requirements that determine species distributions are reviewed to provide fuller understanding of how individual species will respond to climate change from the present to 2055 while addressing the paucity of information on environmental factors controlling small-scale distribution in localized habitats. Based on the available information, we hypothesized how complex environmental interactions can influence abundance and potential range extensions of BHAB species in different biogeographic regions and identify sentinel sites appropriate for long-term monitoring programs to detect range extensions and reduce human health risks.
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Affiliation(s)
| | - R Wayne Litaker
- National Oceanic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Beaufort Laboratory, 101 Pivers Island Road, Beaufort, NC, 28516, USA
| | - Elisa Berdalet
- Institute of Marine Sciences (ICM-CSIC), Passeig Marítim de la Barceloneta, 37-49, 08003, Barcelona, Catalonia, Spain
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12
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Stratoudakis Y, Hilário A, Ribeiro C, Abecasis D, Gonçalves EJ, Andrade F, Carreira GP, Gonçalves JM, Freitas L, Pinheiro LM, Batista MI, Henriques M, Oliveira PB, Oliveira P, Afonso P, Arriegas PI, Henriques S. Environmental representativity in marine protected area networks over large and partly unexplored seascapes. Glob Ecol Conserv 2019. [DOI: 10.1016/j.gecco.2019.e00545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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13
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Costa PR, Estevez P, Castro D, Soliño L, Gouveia N, Santos C, Rodrigues SM, Leao JM, Gago-Martínez A. New Insights into the Occurrence and Toxin Profile of Ciguatoxins in Selvagens Islands (Madeira, Portugal). Toxins (Basel) 2018; 10:E524. [PMID: 30544529 PMCID: PMC6316156 DOI: 10.3390/toxins10120524] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 11/30/2022] Open
Abstract
Ciguatoxins (CTXs), endemic from tropical and subtropical regions of the Pacific and Indian Ocean and the Caribbean Sea, have caused several human poisonings during the last decade in Europe. Ciguatera fish poisonings (CFP) in Madeira and Canary Islands appear to be particularly related with consumption of fish caught close to Selvagens Islands, a Portuguese natural reserve composed of three small islands that harbor high fish biomass. In this study, fish specimens considered as potential vectors of CTXs were caught in Madeira and Selvagens archipelagos for toxins determination via sensitive liquid chromatography with tandem mass spectrometry detection (LC⁻MS/MS). CTXs were found in most of the fish samples from Selvagens and none from Madeira. Caribbean ciguatoxin-1 (C-CTX1) was the only toxin congener determined, reaching the highest value of 0.25 µg C-CTX1 kg-1 in a 4.6 kg island grouper (Mycteroperca fusca). This study indicates that a diversity of fish from different trophic levels contains CTXs, Selvagens appear to be one of the most favorable locations for CTXs food web transfer and finally, this study highlights the need of further research based on intensive environmental and biological sampling on these remote islands.
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Affiliation(s)
- Pedro Reis Costa
- IPMA-Portuguese Institute of the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal.
| | - Pablo Estevez
- Faculty of Chemistry, Department of Analytical and Food Chemistry, University of Vigo, Campus Universitario de Vigo, 36310 Vigo, Spain.
| | - David Castro
- Faculty of Chemistry, Department of Analytical and Food Chemistry, University of Vigo, Campus Universitario de Vigo, 36310 Vigo, Spain.
| | - Lucía Soliño
- IPMA-Portuguese Institute of the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal.
| | - Neide Gouveia
- Regional Fisheries Management-Madeira Government, DSI-DRP, Estrada da Pontinha 9004-562 Funchal, Madeira, Portugal.
| | - Carolina Santos
- Instituto das Florestas e Conservação da Natureza, IP-RAM, Secretaria Regional do Ambiente e Recursos Naturais, Regional Government of Madeira, IFCN IP-RAM, Quinta Vila Passos-Rua Alferes Veiga Pestana 15, 9054-505 Funchal, Madeira, Portugal.
| | | | - José Manuel Leao
- Faculty of Chemistry, Department of Analytical and Food Chemistry, University of Vigo, Campus Universitario de Vigo, 36310 Vigo, Spain.
| | - Ana Gago-Martínez
- Faculty of Chemistry, Department of Analytical and Food Chemistry, University of Vigo, Campus Universitario de Vigo, 36310 Vigo, Spain.
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14
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Cavaleiro B, Hermida M, Saraiva A. Parasites of amberjacks from the archipelago of Madeira, Eastern Atlantic. DISEASES OF AQUATIC ORGANISMS 2018; 131:133-142. [PMID: 30460919 DOI: 10.3354/dao03294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Amberjacks, Seriola spp., are a group of carangid fishes of economic importance for fisheries and aquaculture worldwide. A survey of the parasites of greater amberjack S. dumerili and almaco jack or longfin yellowtail S. rivoliana from the Madeira archipelago (including the Madeira and Selvagens Islands) was carried out. This work is the first parasitological study of these 2 species in the Eastern Atlantic. A total of 14 parasite taxa were detected in the 47 fish analysed: Allencotyla mcintoshi, Stephanostomum petimba, Rhadinorhynchus sp. and Caligus aesopus (in both Seriola spp.); Dionchus agassizi, Zeuxapta seriolae, Tormopsolus orientalis, Didymocystis sp. and Anisakis sp. (in S. rivoliana); Tetrochetus coryphaenae, Stephanostomum sp., S. ditrematis, Oncophora melanocephala and Hysterothylacium seriolae (in Seriola dumerili). The monogenean Dionchus agassizi and the nematode O. melanocephala constitute new host records for the genus Seriola, and the species Allencotyla mcintoshi, Z. seriolae, Tormopsolus orientalis, H. seriolae, and C. aesopus are reported in the region of Madeira for the first time. Some of the parasites detected, in particular Z. seriolae and C. aesopus, could constitute a threat to amberjack aquaculture, and measures should be taken to prevent their introduction into sea cages.
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Affiliation(s)
- Bárbara Cavaleiro
- University of Porto, Faculty of Sciences, Biology Department, Rua do Campo Alegre, Edifício FC4, 4169-007 Porto, Portugal
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