Resilience of Key Biological Parameters of the Senegalese Flat Sardinella to Overfishing and Climate Change
|Author(s)||Ba Kamarel1, 2, Thiaw Modou1, Lazar Najih3, Sarr Alassane2, Brochier Timothee1, 5, Ndiaye Ismaila2, Faye Alioune2, Sadio Oumar5, Panfili Jacques4, Thiaw Omar Thiom2, Brehmer Patrice1, 5|
|Affiliation(s)||1 : ISRA, CRODT, Dakar, Senegal.
2 : UCAD, IUPA, Dakar, Senegal.
3 : Univ Rhode Isl East Farm, Dept Fisheries, Kingston, RI USA.
4 : Univ Montpellier 2, UMR Marbec, IRD, Montpellier 5, France.
5 : IRD, UMR Lemar 195, Dakar, Senegal.
|Source||Plos One (1932-6203) (Public Library Science), 2016-06 , Vol. 11 , N. 6 , P. e0156143 (20p.)|
|WOS© Times Cited||19|
|Abstract||The stock of the Senegalese flat sardinella, Sardinella maderensis, is highly exploited in Senegal, West Africa. Its growth and reproduction parameters are key biological indicators for improving fisheries management. This study reviewed these parameters using landing data from small-scale fisheries in Senegal and literature information dated back more than 25 years. Age was estimated using length-frequency data to calculate growth parameters and assess the growth performance index. With global climate change there has been an increase in the average sea surface temperature along the Senegalese coast but the length-weight parameters, sex ratio, size at first sexual maturity, period of reproduction and condition factor of S. maderensis have not changed significantly. The above parameters of S. maderensis have hardly changed, despite high exploitation and fluctuations in environmental conditions that affect the early development phases of small pelagic fish in West Africa. This lack of plasticity of the species regarding of the biological parameters studied should be considered when planning relevant fishery management plans.|