Resumen del producto

In order to detect potential changes in the composition of fish catches from artisanal fisheries, samples were collected from catches landed by five fishing vessels in southern San José Island, southwestern Gulf of California, from 2004 and 2006. The data included catches in term of number of specimens and weight for each species landed, and were grouped by season (cold or warm) into six fishing areas, according to the fishing gear (lines with hooks, longlines and small-, medium- or large-mesh nets). Sixty five species were identified, belonging to 53 genera and 34 families. Forty four, 37 and 21 species were found for small-, medium- and largemesh nets, respectively. Twenty one and 5 species were caught with hooks and longlines, respectively. When considering the contribution of each species in the catch in terms of number of specimens, total weight and frequency of occurrence, the fact that just a few are target species was confirmed. In general, no substantial changes were detected upon considering the location of the catch, but the opposite was found in relation to the fishing season.

Palabras clave:

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx