Open AccessCiclos sazonais da carcinofauna capturada na pesca do camarão-sete-barbas, Xiphopenaeus kroyeri no litoral de Santa Catarina
Author(s) -
Jorge Luiz Rodrigues Filho,
Erminda da Conceição Guerreiro Couto,
Edison Barbieri,
Joaquim Olinto Branco
Publication year - 2016
Publication title -
boletim do instituto de pesca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 15
eISSN - 1678-2305
pISSN - 0046-9939
DOI - 10.20950/1678-2305.2016v42n3p648
Subject(s) - humanities , biology , art
The sea bob-shrimp fisheries, is considered effective in catch the target specie, but has low selectivity because catch high amounts of bycatch in trawls. In this context, the present study aimed to characterize the catches of shrimp fishing over thirteen years in Santa Catarina coast and also search for seasonal patterns in environmental conditions and crustacean community on study area. The experimental hauls were deployed monthly in three fishing spots in the study area. Results were grouped according to the seasons and were applied multivariate statistical analyzes to achieved our goals. Discriminant Analysis (AD) showed a marked fluctuation in salinity and temperature among seasons. Crustacean community consisted of species with abundances and frequencies unequal and, apparently, environmental variations influenced formation of seasonal assemblages in the study area (ANOSIM, R = 0.247; p = 0.001). Analysis of the Similarity Percentage (SIMPER) showed that species that contributed most to the differences reported were: X. kroyeri, A. longinaris, P. muelleri and C. ornatus. Such variations resulted in statistical differences on proportion target specie/carcinofauna, as detected by the chi-square test (X2 = 311,911,243.01; GL = 6, p <0.1).