The evolution of Lophius gastrophysus (MIRANDA-RIBEIRO, 1915) fishery at the continental margin of brazilian coast between 22° and 28°S

Abstract

In the early 2000s, Brazilian demersal fishery in the shelf break and upper slope was booming and Lophius gastrophysus has become of economic interest for export. Following, there was a large increase in the effort directed to the species. In São Paulo State, its landings in 2000 summed 61.5 tons, reached 1,063.2 tons in 2001 and, in 2007, were 163.1 tons. L. gastrophysus is captured with double rig trawl and bottom gillnets directed to the species. Data analysis of 3,469 fishing cruises with landings registered in São Paulo State between 1990 and 2007, indicated that the capture of this species is incidental in trawlers operations and target to gill netters. Generalized linear modeling pointed that for the trawl fishery CPUE varied with year, depth, month and latitude. For gillnet fishery, the fishing boat itself had the most significant effect on CPUE.