Pescarias artesanais de pequena, média e larga escala da corvina Cynoscion virescens (CUVIER, 1830) no estado do Pará

Abstract

The corvina or pescada cambuçu Cynoscion virescens is one of the main species of scianidae caught in Pará artisanal fishing. During the Estatpesca program, from 1997 to 2007, occurred in 0.99% of monitored landings, were 0.15% of landed total production, and their data showed a tendency to increase production between 2005 and 2007. In the frequency and average landed, São João de Pirabas was featured, but in the landed total quantity, Belém stood out, boosted by the increased frequency of landings of small and medium size vessels in the last three years of monitoring. The curral and the gillnets, serreira and gozeira, were the most frequent rigs, but the nets presented the largest volume landed. Among the vessels, canoas most frequently and with larger landed biomass. Regarding the CPUEs, the nets were correlated with the number of fishermen. The curral were analyzed solely with their quantities in the monitoring and the canoes with the days at sea. Only the gillnets showed significant differences. Cluster analysis showed five landing groups between municipalities: groups with null, small and regular landings, zero landing groups between 1998 and 1999, and those with a growth trend from 2005 to 2007.