| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Stability of the relationships among demersal fish assemblages and environmental-trawling drivers at large spatio-temporal scales in the northern Mediterranean Sea
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| Autores: |
Mérigot, Bastien
Gaertner, Jean-claude
Brind’amour, Anik
Carbonara, Pierluigi
Esteban, Antonio
Garcia-ruiz, Cristina
Gristina, Michele
Imzilen, Taha
Jadaud, Angelique
Joksimovic, Aleksandar
Kavadas, Stefanos
Kolitari, Jerina
Maina, Irida
Maiorano, Porzia
Manfredi, Chiara
Micallef, Reno
Peristeraki, Panagiota
Relini, Giulio
Sbrana, Mario
Spedicato, Maria Teresa
Thasitis, Ioannis
Vittori, Stefania
Vrgoc, Nedo
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| Data: |
2019-12
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| Ano: |
2019
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| Palavras-chave: |
Species composition
Stability
Demersal assemblages
Environment
Fishing pressure
Large scale
Co-inertia analysis
STATICO-CoA
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| Resumo: |
Trawling pressure and environmental changes may affect the composition of fish assemblages. Our knowledge on large spatio-temporal patterns of demersal fish composition remains incomplete for the Mediterranean Sea. We investigated (1) the spatio-temporal stability of demersal assemblages, (2) the relationships between these assemblages and potential structuring factors (trawling pressure and environmental conditions) in order to assess the dynamic of the assemblage structure at the scale of the northern Mediterranean Sea. We analysed a dataset of 18062 hauls from 10 to 800 m depth performed annually during the last two decades across 17 Geographical Sub-Areas (GSAs) (MEDITS program). A multi-table analysis (STATICO-CoA) evidenced a strong inter-GSAs stability in the organization of assemblages, with specificities for some GSAs. The most stable structuring factors were linked to combined gradients of chlorophyll a, phytoplancton carbon biomass and temperature, inversely correlated with depth, salinity and nutrient gradients (axis 1 of the STATICO-CoA compromise, 93.74% of the total variability). A common pattern linking the distribution of species to these environmental gradients was evidenced for most of the 17 GSAs. Estimate of trawling pressure showed a minor role in the organization of the assemblages for the spatial scale and years investigated (axis 2, 4.67%).
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00584/69629/67485.pdf
DOI:10.3989/scimar.04954.30A
https://archimer.ifremer.fr/doc/00584/69629/
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| Editor: |
Departmento de Publicaciones del CSIC
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| Formato: |
application/pdf
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| Fonte: |
Scientia Marina (0214-8358) (Departmento de Publicaciones del CSIC), 2019-12 , Vol. 83 , N. S1 , P. 153-163
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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