| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Variability of energy density among mesozooplankton community: new insights in functional diversity to forage fish
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| Autores: |
Dessier, Aurelie
Dupuy, Christine
Kerric, Anais
Mornet, Francoise
Authier, Matthieu
Bustamante, Paco
Spitz, Jerome
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| Data: |
2018-09
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| Ano: |
2018
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| Palavras-chave: |
Bay of Biscay
Profitability
Copepods
Prey-predator relationship
Fisheries
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| Resumo: |
To explore some aspects of mesozooplankton functional diversity, this study quantified energy density during the springtime in the Bay of Biscay both between different species and between different size-classes. Energy densities of copepod species (Centropages typicus, Anomalocera patersoni, Calanus helgolandicus, and Labidocera wollastoni), as well as anchovy eggs (Engraulis encrasicolus) ranged from 0.5 to 6.7 kJ/g wet weight (ww). Considering size-classes, energy densities varied from 0.74 to 1.26 kJ/g ww. Energy density of C. helgolandicus exhibited a spatial pattern with the highest values in the plume of the Gironde estuary. In contrast, no spatial pattern of energy density has been detected considering size-classes. Our results showed that the mesozooplankton cannot be considered as a homogeneous resource in terms of quality. During spring, some species and some geographical areas seem thus to be more profitable to predators than others. We argued that the energy density is a key functional trait of mesozooplankton species. Finally, we discussed how interspecific and spatial variability of energy density among the mesozooplankton community can have important implications on fish population dynamics.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00407/51835/52434.pdf
DOI:10.1016/j.pocean.2017.10.009
https://archimer.ifremer.fr/doc/00407/51835/
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| Editor: |
Pergamon-elsevier Science Ltd
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| Formato: |
application/pdf
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| Fonte: |
Progress In Oceanography (0079-6611) (Pergamon-elsevier Science Ltd), 2018-09 , Vol. 166 , P. 121-128
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| Direitos: |
2017 Elsevier Ltd. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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