Resumen del producto

Bahía Magdalena-Almejas (BMA) is one of the most important regions for fishing clam chocolata in Baja California Sur. However, there are no studies related to the spatial and temporal distribution of the resource. This work analyzed the dynamics of the fleet whereas the use in the different fishing areas. The analysis considered data from production from 1998 to 2010, estimates of abundance by fishing area, particle size by bank and experience of fishermen. The production data allowed defining 3 zones of fishing: Zona de Canales (6% of production), Bahía Magdalena (83%) and Bahía Almejas (11%). In Bahía Almejas the activity is higher in May, November and December; in the other areas between February and April. The evaluation of clams available in 18 banks showed that 76% of individuals had a length exceeding minimum capture size in BMA. Among the banks of clam chocolata there are variations in the frequency of sizes and weights that can be connected to the physiographic characteristics of the fishing areas. The results suggest that banks associated with coarse sand have larger individuals, situation that could relate to the success of fishing.

Palabras clave: fleet; production; Bahía Magdalena; Bahía Almejas

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