Distribuicao espacial e temporal de Cetengraulis edentulus (Cuvier) (Actinopterygii, Engraulidae) na Baia de Sepetiba, Rio de Janeiro, Brasil



Título del documento: Distribuicao espacial e temporal de Cetengraulis edentulus (Cuvier) (Actinopterygii, Engraulidae) na Baia de Sepetiba, Rio de Janeiro, Brasil
Revista: Revista brasileira de zoologia
Base de datos: PERIÓDICA
Número de sistema: 000281037
ISSN: 0101-8175
Autores: 1


Instituciones: 1Universidade Federal Rural do Rio de Janeiro, Laboratorio de Ecologia de Peixes, Seropedica, Rio de Janeiro. Brasil
Año:
Periodo: Dic
Volumen: 20
Número: 4
Paginación: 577-581
País: Brasil
Idioma: Portugués
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Anchovies are members of the Engraulidae family, characterized to present coastal pelagic habits, concentrating in large schoolings distributed among the continental shelf and semi-closed environment, like bays, where they are target of heavy fisheries. The present study aims to describe spatial and temporal distribution of Cetengraulis edentulous (Cuvier, 1828) in the Sepetiba bay (22º54'-23º04'S, 43º34'-44º10'W) and to assess influences of environmental variables on fish occurrence. A monthly sampling programme was carried out between October 1998 and September 1999, to take both, fish and environmental information on temperature, salinity and depth. Three bay zones were established based on spatial gradient of salinity and depth. Adults C. edentulus were more abundant in the inner bay zone; seasonally, larger size groups (total length >16 cm) occurred in spring/summer. Significant negative correlations were found between fish abundance and salinity and depth. The close relationship of this species to innermost areas in bays, and the absence of juveniles in sandy beaches, suggest that young-of-the-year use mangrove areas as recruitment sites
Disciplinas: Biología
Palabras clave: Ecología,
Peces,
Anchoveta,
Distribución espacial,
Variación estacional,
Abundancia,
Cetengraulis edentulus,
Engraulidae,
Brasil
Keyword: Biology,
Ecology,
Fish,
Anchovy,
Spatial distribution,
Seasonal variation,
Abundance,
Cetengraulis edentulus,
Engraulidae,
Brazil
Texto completo: Texto completo (Ver HTML)