| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Responses of ecological indicators to fishing pressure under environmental change: exploring non-linearity and thresholds
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| Autores: |
Fu, Caihong
Xu, Yi
Grüss, Arnaud
Bundy, Alida
Shannon, Lynne
Heymans, Johanna J
Halouani, Ghassen
Akoglu, Ekin
Lynam, Christopher P
Coll, Marta
Fulton, Elizabeth A
Velez, Laure
Shin, Yunne-jai
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| Data: |
2019-09
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| Ano: |
2019
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| Resumo: |
Marine ecosystems are influenced by multiple stressors in both linear and non-linear ways. Using generalized additive models (GAMs) fitted to outputs from a multi-ecosystem, multi-model simulation experiment, we investigated 14 major ecological indicators across ten marine ecosystems about their responses to fishing pressure under: (i) three different fishing strategies (focusing on low-, high-, or all-trophic-level taxa); and (ii) four different scenarios of directional or random primary productivity change, a proxy for environmental change. From this work, we draw four major conclusions: (i) responses of indicators to fishing mortality in shapes, directions, and thresholds depend on the fishing strategies considered; (ii) most of the indicators demonstrate decreasing trends with increasing fishing mortality, with a few exceptions depending on the type of fishing strategy; (iii) most of the indicators respond to fishing mortality in a linear way, particularly for community and biomass-based indicators; and (iv) occurrence of threshold for non-linear-mixed type (i.e. non-linear with inflection points) is not prevalent within the fishing mortality rates explored. The conclusions drawn from the present study provide a knowledge base in indicators’ dynamics under different fishing and primary productivity levels, thereby facilitating the application of ecosystem-based fisheries management worldwide.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00516/62749/67138.pdf
https://archimer.ifremer.fr/doc/00516/62749/67139.pdf
DOI:10.1093/icesjms/fsz182
https://archimer.ifremer.fr/doc/00516/62749/
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| Editor: |
Oxford University Press (OUP)
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| Formato: |
application/pdf
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| Fonte: |
ICES Journal of Marine Science (1054-3139) (Oxford University Press (OUP)) In Press
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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