Data/hora: 08/06/2024 13:44:18

Provedor de dados: | 5
País: | France
Título: | Migration, residency, and homing of bluefin tuna in the western Mediterranean Sea
Autores: | Fromentin, Jean-marc; Lopuszanski, Daniel.
Data: | 2014-03
Ano: | 2014
Palavras-chave: | Feeding area; Front; Marine protected area; Pop-up archival tag; Spatial distribution; Thunnus thynnus.
Resumo: | This study presents the results of an electronic tagging programme on mature Atlantic bluefin tuna (ABFT) that has been conducted since 2007 offshore of the French Mediterranean Coast. The spatial distributions of ABFT showed little year-to-year variation and the fish concentrated in a small area of the central northwestern Mediterranean, where they may stay for several months. The individual tracks display sinuous trajectories in this area, indicating the possibility of feeding behaviour. No fish went out to the North Atlantic, but several fish displayed some migration to the southern western Mediterranean Sea during winter and the central Mediterranean during the spawning season. The homing behaviour of one fish after a full year as well as the back and forth of several fish further indicates that this restricted feeding area is probably persistent from year to year. We hypothesize that this area could result from local enrichment due to permanent mesoscale oceanographic features related to the North Mediterranean Current and the North Balearic front. The option of a spatial management, through marine protected areas, for a highly migratory species, such as ABFT, thus deserves more careful consideration because those species displayed complex spatial dynamics (e.g. homing), and population structure (e.g. several subpopulations of different sizes).
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00165/27637/25835.pdf

DOI:10.1093/icesjms/fst157

Editor: | Oxford Univ Press
Relação: | http://archimer.ifremer.fr/doc/00165/27637/
Formato: | application/pdf
Fonte: | Ices Journal Of Marine Science (1054-3139) (Oxford Univ Press), 2014-03 , Vol. 71 , N. 3 , P. 510-518
Fonte: | 2013 International Council for the Exploration of the Sea. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com