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Análise da pesca da corvina na costa centro-sul do Brasil

1963; SciELO; Volume: 13; Issue: 2 Linguagem: Inglês

10.1590/s0373-55241963000200006

2316-8951

A. E. A. de M. Vazzoler, Eolchiian Sa,

Marine and fisheries research

This paper presents results obtained in analysis of the data on catch and effort, for croaker (Micropogon furnieri) caught along the southern coast of Brazil, between 23o50'S and 35oS, in a band of approximately 30 nautical miles, and landed at Santos from January 1959 to December 1962. The unweighted and weighted indexes of density and the concentration index were computed according to gear and to fishing area (I - from 23o50'S to 26oS, and II - from 26oS to 35oS) and the data were grouped by quarters. The results suggest the following conclusions: 1) The croaker catch, to some extent, has been done without directive thus the fishing fleet has operated in the areas with density lower than average. 2) The level of unit-effort production differ largely between areas, suggesting the presence of two separate croaker populations. 3) The decrease in production per unit-effort year after year in the two areas, suggests a decrease in the relative abundance along the studied fishing area.