
%0 Journal Article
%A Amorim, A. F. 
%A Arfelli, C. A. 
%A Fagundes, L. 
%T Pelagic elasmobranchs caught by longliners off southern Brazil during 1974&#8211;97: an overview
%J Marine and Freshwater Research
%D 1999/01/05
%V 49
%N 7
%P 621-632
%K 
%R https://doi.org/10.1071/MF97111
%U https://www.publish.csiro.au/paper/MF97111 
%X From 1974 to 1997 elasmobranchs caught by longliners based in Santos City, S&#227;o Paulo State, Brazil, have been identified and the biology of some of the species has been studied. The fleet has fished since 1968, and in 1996 comprised 16 boats operating in the area 17&#8211;35&ordm;S,27&#8211;52&ordm;W. Since 1977 yields of sharks have shown an increasing trend, reaching ~60% of the longline total catch in 1993. Blue shark (Prionace glauca) was the main species and responsible for about 30% of the total catch of the Santos longliners. The 33 shark and 2 ray species identified belonged to the following families and genera: Alopiidae (Alopias), Carcharhinidae (Carcharhinus, Galeocerdo, Prionace) Hexanchidae (Heptranchias, Hexanchus), Lamnidae (Isurus, Lamna), Megachasmidae (Megachasma), Odontaspididae (Carcharias, Odontaspis), Pseudocarchariidae (Pseudocarcharias), Rhincodontidae (Rhincodon), Sphyrnidae (Sphyrna), Squalidae (Squaliolus, Etmopterus, Isistius), Dasyatidae (Dasyatis) and Mobulidae (Mobula). Abundance, reproduction and other biological aspects of some of the species are presented. Resumo. Estudou-se os elasmobr&acirc;nquios capturados pelos atuneiros sediados em Santos. Esta frota, que utiliza o espinhel como arte de pesca, vem pescando desde 1968 no sudeste e sul do Brasil, sendo que em 1996 haviam 16 barcos, operando na &aacute;rea 17-35&ordm;S,27-52&ordm;W. Desde 1977 a produ&ccedil;&#227;o de tubar&otilde;es apresentou tend&ecirc;ncia crescente, atingindo 60% do total da captura em 1993. O ca&ccedil;&#227;o-azul (Prionace glauca) foi o principal respons&aacute;vel pelo aumento das capturas de tubar&otilde;es, representando cerca de 30 % do total da captura dessa frota. Identificou-se, no per&#237;odo de 1974 a 1997, 33 esp&#233;cies de tubar&#227;o e duas de raia, pertencentes &agrave;s seguintes fam&#237;lias e g&ecirc;neros: Alopiidae (Alopias), Carcharhinidae (Carcharhinus, Galeocerdo, Prionace) Hexanchidae (Heptranchias, Hexanchus), Lamnidae (Isurus, Lamna), Megachasmidae (Megachasma), Odontaspididae (Carcharias, Odontaspis), Pseudocarchariidae (Pseudocarcharias), Rhincodontidae (Rhincodon), Sphyrnidae (Sphyrna), Squalidae (Squaliolus, Etmopterus, Isistius), Dasyatidae (Dasyatis) and Mobulidae (Mobula). Apresentam-se an&aacute;lises da pesca, da reprodu&ccedil;&#227;o e de outros aspectos biol&oacute;gicos de algumas esp&#233;cies. 
