Influência das fases da lua na abundância de Larimus breviceps na zona de arrebentação da praia de Miramar-PB

Abstract

The present study aimed to investigate the possible influence of moon phases on the abundance and population structure of Larimus breviceps in the surf zone of Miramar beach. The studied area was divided into two distinct area according to the proximity to the estuary. Samples were carried out weekly, during May and June 2014. Three hauls, using a beach seine net, were conducted in each area, during each lunar phase, totaling 48 hauls at the end of the sample program. Before each sample, physicochemical data were obtained from water, as salinity, temperature, pH, conductivity and turbidity. Most of individuals caught in both areas, had length classes between 2 and 8 cm and were considered juveniles. Along the area 1, highest mean weight and length were found during the first quarter and full moon. While, in area 2 occurred during the last quarter and full moon. The individuals of juvenile stage demonstrated be influenced by the moon, showing spatial change on their catch according to lunar phases. The data obtained in this study revealed that the surf zone of Miramar work as an important nursery habitat for L. breviceps. Moreover, these data could provide support for supervisions and management plans of the local fishery

Keywords

• boca-mole
• habitat berçário
• relação peso-comprimento
• praia estuarina
• nordeste do brasil