The History of the Brazilian Sardine (<i>Sardinella brasiliensis</i>) Between Two Fishery Collapses: An Ecosystem Modeling Approach to Study Its Life Cycle.

ABSTRACT: The inter-annual fluctuations of abundance of the Brazilian sardine (Sardinella brasiliensis) during the last decades have deeply modified the purse seine fishery dynamics. This study evaluates the trophic relationships of the main species exploited by this fishery and the importance of its biomass for the southeast-south Brazil marine ecosystem (22° S-34° S). Data were analyzed using a mass balance model (ECOPATH) between the two fishery collapses: 2000 and 2017. From 2000 onwards, the sardine fishery adopted a multi-species character. The mean trophic level of the catches (MTL) showed a decreasing trend until 2008, when more modern vessels with greater autonomy entered the fishery, and expanded the traditional fishing area to exploit northern fishing grounds. The MTL in the expand

SUBMITTER: Schroeder R 

PROVIDER: S-EPMC11763292 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature