Desembarques de tubarões e raias na enseada do Mucuripe, Fortaleza, Ceará, no Período de 2015 a 2017

Abstract

Fishing in Brazil is occurred due to the extensive coastline and countless continental waters, in the state of Ceará, which is characterized by being artisanal and in them catch the elasmobranchs that have been overexploited throughout the world in the last decades. This study has the aim of monitoring landigs of sharks and rays by the artisanal fisheries fleet based on Mucuripe’s Bay, in Fortaleza City, Ceará State, Brazil. This fleet was composed by “jangadas”, typical sail boats, and motor boats, which used lines and hooks, and surface nets as fisheries equipments. They were fishing in deeps from 10 to 120 meters. The fishing area weyle among the coordinates: 03°43′S / 038°05′W; 03°23′S / 038°05′W e 03°25′S / 038°48′W; 03°01′S / 038°49′W. The landings of sharks and rays were monitoring weekly from July 2015 to June 2017, in 97 days of samplings. A total of 990 individuals were recorded on landings, being 240 sharks (24,2%) and 750 rays (75,8% of total). Thirteen species of sharks and six species of rays occurred on landings, which represented 33% of the elasmobranchs recorded for Ceará State. October and November of 2015 were the months i more sharks were landing, while from May to June of the monitored period less sharks were landing. The nurse shark, Ginglymostoma cirratum, was the specie of shark whih the most ocurrency on the landings, while the ray, Hypanus americanus, was the species of this group with the large number of individuals. This work was important because will support future studies on the status of elasmobranch fisheries in the Ceará State.