Data/hora: 08/06/2024 17:21:10

Provedor de dados: | 5
País: | France
Título: | Large-scale distribution of a deep-sea megafauna community along Mediterranean trawlable grounds
Autores: | Fernandez-arcaya, Ulla; Bitetto, Isabella; Esteban, Antonio; Farriols, M. Teresa; García-ruiz, Cristina; Gil De Sola, Luis; Guijarro, Beatriz; Jadaud, Angelique; Kavadas, Stefanos; Lembo, Giuseppe; Milisenda, Giacomo; Maina, Irida; Petovic, Slavica; Sion, Letizia; Vaz, Sandrine; Massutí, Enric.
Data: | 2019-12
Ano: | 2019
Palavras-chave: | Distribution pattern; Fishing impact; Continental slope; Deep sea; Megafauna; Red shrimp; Community.
Resumo: | The large-scale distribution pattern of megafauna communities along the Mediterranean middle slope was explored. The study was conducted between 500 and 800 m depth where deep-water fishery occurs. Although community studies carried out deeper than 500 m are partly available for some geographic areas, few large-scale comparative studies have been carried out. Within the framework of the MEDITS survey programme, we compared the megafauna community structure in ten geographical sub-areas (GSAs) along the Mediterranean coasts. Additionally, the spatial distribution of fishing was analysed using vessel monitoring by satellite information. Overall, the community showed a significant difference between sub-areas, with a decreasing eastward pattern in abundance and biomass. Longitude was the main factor explaining variation among sub-areas (by generalized additive models). However, we found a region which did not follow the general pattern. GSA 6 (northern Spain) showed significantly lower abundance and a different composition structure to the adjacent areas. The decrease in community descriptors (i.e. abundance and biomass) in this area is probably a symptom of population changes induced by intense fishery exploitation. Overall, a combination of environmental variables and human-induced impacts appears to influence the bentho-pelagic communities along the slope areas of the Mediterranean.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00489/60051/63328.pdf

DOI:10.3989/scimar.04852.14A

https://archimer.ifremer.fr/doc/00489/60051/

Editor: | Departmento de Publicaciones del CSIC
Formato: | application/pdf
Fonte: | Scientia Marina (0214-8358) (Departmento de Publicaciones del CSIC), 2019-12 , Vol. 83 , N. S1 , P. 175-187

Fonte:

info:eu-repo/semantics/openAccess

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