Sylla M., Brochier Timothée, Pecquerie Laure, Ndiaye O., Richaume M., Brehmer Patrice. (2015). Senegalese Sardinella aurita from 1995 to 2011 : review of size spectra, sex ratio, gonadal somatic and condition indexes from small scale main national landing sites [résumé]. In :
PREFACE-PIRATA-CLIVAR Tropical Atlantic Variability Conference. [s.l.] : IRD, p. 68. PREFACE-PIRATA-CLIVAR Tropical Atlantic Variability Conference, Cape Town (ZAF), 2015/08/25-27 .
Titre du document
Senegalese Sardinella aurita from 1995 to 2011 : review of size spectra, sex ratio, gonadal somatic and condition indexes from small scale main national landing sites [résumé]
Année de publication
2015
Type de document
Colloque
Auteurs
Sylla M., Brochier Timothée, Pecquerie Laure, Ndiaye O., Richaume M., Brehmer Patrice
In
PREFACE-PIRATA-CLIVAR Tropical Atlantic Variability Conference
Source
[s.l.] : IRD, 2015,
p. 68
Colloque
PREFACE-PIRATA-CLIVAR Tropical Atlantic Variability Conference, Cape Town (ZAF), 2015/08/25-27
Sardinella aurita is the main abundant fish species in Senegal and of major socio economics interest in West Africa. This species follow the r selection theory i.e. low cost for reproduction, short lived fish, large number of offspring at a time, low offspring survival and no parental care; thus they are sensitive to climate fluctuation which impact their pelagic habitat. A monthly data base started from 1995 to 2011 have been compiled by the CRODT mixing landing site sampling with some data collected in situ using fisheries research vessel. The relationship between LT and LF is linear and appear as consistent, which allow future integration of other basis using different metric for fish individual size. From this basis, we analyse the change in individual fish size spectra, their sex ratio, maturity stage and gonadal somatic index as well as the condition factor. The change, are scrutinized per size class and geographical location associated to different pelagic habitat in Senegal.
Plan de classement
Poissons [034BIOVER01]
;
Pêches [040PECHE]
Localisation
Fonds IRD [F B010091462]
Identifiant IRD
fdi:010091472
