From the light blue sky to the dark deep sea: Trophic and resource partitioning between epipelagic and mesopelagic layers in a tropical oceanic ecosystem

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorIRD-
Autor(es): dc.contributorUniversidade Federal Rural de Pernambuco (UFRPE)-
Autor(es): dc.contributorUniversidade Federal de Sergipe (UFS)-
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.contributorSchmid College of Science and Technology-
Autor(es): dc.contributorLimnológicos e Marinhos-
Autor(es): dc.contributorUniversidade Estadual de Maringá (UEM)-
Autor(es): dc.contributorUniversidade Federal de Pernambuco (UFPE)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorMIO-
Autor(es): dc.creatorEduardo, Leandro Nolé-
Autor(es): dc.creatorLucena-Frédou, Flávia-
Autor(es): dc.creatorLanco Bertrand, Sophie-
Autor(es): dc.creatorLira, Alex Souza-
Autor(es): dc.creatorMincarone, Michael Maia-
Autor(es): dc.creatorNunes, Guilherme Tavares-
Autor(es): dc.creatorFrédou, Thierry-
Autor(es): dc.creatorSoares, Andrey-
Autor(es): dc.creatorLe Loc'h, François-
Autor(es): dc.creatorPelage, Latifa-
Autor(es): dc.creatorSchwamborn, Ralf-
Autor(es): dc.creatorTravassos, Paulo-
Autor(es): dc.creatorMartins, Karla-
Autor(es): dc.creatorLira, Simone M.A.-
Autor(es): dc.creatorFigueiredo, Gabriela A.A.-
Autor(es): dc.creatorJúnior, Teodoro Vaske-
Autor(es): dc.creatorMénard, Frédéric-
Autor(es): dc.creatorBertrand, Arnaud-
Data de aceite: dc.date.accessioned2025-08-21T18:20:34Z-
Data de disponibilização: dc.date.available2025-08-21T18:20:34Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-06-20-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2023.163098-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247120-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247120-
Descrição: dc.descriptionThe connection between epipelagic and deep-sea mesopelagic realms controls a variety of ecosystem processes including oceanic carbon storage and the provision of harvestable fish stocks. So far, these two layers have been mostly addressed in isolation and the ways they connect remain poorly understood. Furthermore, both systems are affected by climate change, exploitation of resources, and increasing pervasion of pollutants. Here we use bulk isotopes of δ13C and δ15N of 60 ecosystem components to evaluate the trophic linkage between epipelagic and mesopelagic ecosystems in warm oligotrophic waters. Additionally, we we conducted a comparison of isotopic niche sizes and overlaps across multiple species to evaluate how environmental gradients between epipelagic and mesopelagic ecosystems shape ecological patterns of resource use and competition between species. Our database comprises siphonophores, crustaceans, cephalopods, salpas, fishes, and seabirds. It also includes five zooplankton size classes, two groups of fish larvae, and particulate organic matter collected at different depths. Through this wide taxonomic and trophic variety of epipelagic and mesopelagic species, we show that pelagic species access resources originating from different food sources, mostly autotrophic-based (epipelagics) and microbial heterotrophic-based (mesopelagics). This leads to a sharp trophic dissimilarity between vertical layers. Additionally, we show that trophic specialization increases in deep-sea species and argue that food availability and environmental stability are among the main drivers of this pattern. Finally, we discuss how the ecological traits of pelagic species highlighted in this study can respond to human impacts and increase their vulnerability in the Anthropocene.-
Descrição: dc.descriptionMARBEC Univ. Montpellier CNRS Ifremer IRD-
Descrição: dc.descriptionUniversidade Federal Rural de Pernambuco (UFRPE) Departamento de Pesca e Aquicultura, PE-
Descrição: dc.descriptionUniversidade Federal de Sergipe (UFS) Departamento de Pesca e Aquicultura, SE-
Descrição: dc.descriptionUniversidade Federal do Rio de Janeiro (UFRJ) Instituto de Biodiversidade e Sustentabilidade, RJ-
Descrição: dc.descriptionChapman University Schmid College of Science and Technology-
Descrição: dc.descriptionUniversidade Federal do Rio Grande do Sul (UFRGS) Centro de Estudos Costeiros Limnológicos e Marinhos, RS-
Descrição: dc.descriptionInstitut de Recherche pour le Développement (IRD) Univ. Brest CNRS Ifremer LEMAR IUEM-
Descrição: dc.descriptionUniversidade Federal de Pernambuco (UFPE) Departamento de Oceanografia, PE-
Descrição: dc.descriptionUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP) Instituto de Biociências, SP-
Descrição: dc.descriptionAix Marseille Univ. Université de Toulon CNRS UM110 Marseille IRD MIO-
Descrição: dc.descriptionUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP) Instituto de Biociências, SP-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiological carbon pump-
Palavras-chave: dc.subjectEnvironmental stability-
Palavras-chave: dc.subjectFernando de Noronha archipelago-
Palavras-chave: dc.subjectMicrobial trophic pathways-
Palavras-chave: dc.subjectoceanic islands-
Palavras-chave: dc.subjectStable isotopes-
Título: dc.titleFrom the light blue sky to the dark deep sea: Trophic and resource partitioning between epipelagic and mesopelagic layers in a tropical oceanic ecosystem-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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