Cardumes da sardinha-verdadeira, Sardinella brasiliensis (Steindachner), em águas costeiras do estado do Rio de Janeiro, Brasil
AUTOR(ES)
Paiva, Melquíades Pinto, Motta, Paulo César Silva da
FONTE
Revista Brasileira de Zoologia
DATA DE PUBLICAÇÃO
2000-06
RESUMO
This paper deals with the occurrence and schol sizes of the Brazilian-sardine, Sardinella brasiliensis (Steindachner, 1879), in coastal waters of" Rio de Janeiro State (Brazil), during the years 1993-1997. The schools are more frequent and heavier in bay and surroundings of Grande Island; another area, with lesser importance, remains between the Cape of São Tome and surroundings of Cabo Frio, under influence of coastal upwelling. The heavier schools are found in April-June (autumn), soon after lhe reproduction period. The schools swim in surface waters with until 80 meters in depth. but more than 98% of them are restricted to waters until 50 meters; about 41% of schools are found in places of 10 - 20 meters, with clear reduction of their frequencies in higher depths; schools with more than 10 tons tend to swim in surface waters with 31-60 meters in depth. The schools reach the maximum size of 95 tons, but around 88% of them do not exceed the 15 tons; the smaller ones, with until 5 tons, correspond to almost 42% of those caught, with frequency reductions as increase their sizes.
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