Data/hora: 10/06/2024 13:32:44

Provedor de dados: | 5
País: | France
Título: | Size-dependent survival of European hake juveniles in the Mediterranean Sea
Autores: | Hidalgo, Manuel; Ligas, Alessandro; Maria Bellido, Jose; Bitetto, Isabella; Carbonara, Pierluiggi; Carlucci, Roberto; Guijarro, Beatriz; Jadaud, Angelique; Lembo, Giuseppe; Manfredi, Chiara; Esteban, Antonio; Garofalo, Germana; Ikica, Zdravko; Garcia, Cristina; Gil De Sola, Luis; Kavadas, Stefanos; Maina, Irida; Sion, Letizia; Vittori, Stefania; Vrgoc, Nedo.
Data: | 2019-12
Ano: | 2019
Palavras-chave: | Juvenile survival; European hake; Mediterranean Sea; Size dependence.
Resumo: | Most studies on European hake focus on the recruitment process and nursery areas, whereas the information is comparatively limited on the ecology of the juvenile stage (ca. second year of life)-the one most exploited by the Mediterranean trawl fisheries. Using information of the MEDITS programme, we provide a spatial and temporal assessment of the influence of body size and growth on hake survival from recruits (age 0) to juveniles (age 1), along with the impact of surface temperature and chlorophyll variability. At a biogeographic scale, size-dependent survival is supported, with areas with higher mean length of recruits and juveniles yielding higher survival. A similar pattern was observed at interannual level in some western Mediterranean areas, also mediated by a density-dependent effect on growth. However, the most recurrent inter-annual pattern was a negative effect of size on survival, which could be attributed to potential ontogenetic changes in catchability and underrepresentation of intra-annual recruitment pulses that are seasonally inaccessible to the MEDITS survey. Results also evidence that survival in the Alboran and Adriatic seas is dependent on the primary production variability, and that Corsica and Sardinia could be potential feeding grounds receiving juveniles from neighbouring areas. The present study reveals the importance of size- and growth-dependent survival in the juvenile stage of European hake in the Mediterranean Sea.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00600/71229/69590.pdf

DOI:10.3989/scimar.04857.16A

https://archimer.ifremer.fr/doc/00600/71229/

Editor: | Consejo Superior Investigaciones Cientificas-csic
Formato: | application/pdf
Fonte: | Scientia Marina (0214-8358) (Consejo Superior Investigaciones Cientificas-csic), 2019-12 , Vol. 83 , N. S1 , P. 207-221

Fonte:

info:eu-repo/semantics/openAccess

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