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标题：Additional Records of the American Elephantfish Callorhinchus callorynchus (Chondrichthyes, Holocephali, Chimaeriformes) in Southeastern Brazil
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作者：Salvatore Siciliano ; Ana Rita O. Palmeira-Nunes ; Getulio Rincon 等
期刊名称：Natural Resources
印刷版ISSN：2158-706X
电子版ISSN：2158-7086
出版年度：2020
卷号：11
期号：10
页码：439-445
DOI：10.4236/nr.2020.1110026
出版社：Scientific Research Publishing
摘要：Chimaeras, fish in the order Chimaeriformes, are among the rarest and least studied fish in the class Chondrichthyes (cartilaginous fish). Previous records have indicated that a species of chimaera known as the elephantfish, or cockfish, Callorhinchus callorynchus, may be found in marine waters off southeastern Brazil, as far north as the state of São Paulo. Here we report that C. callorynchus, caught with bottom gillnet, was found in an urban fish market in the city of Rio de Janeiro (~23˚S). This and other records from a variety of places call into question the distribution limits of the American elephantfish in the southwestern Atlantic Ocean and whether, at least seasonally, this species may often be found as far north as the state of Rio de Janeiro. Because of scientific and conservation interests in the poorly known Chimaeriformes, we recommend long-term monitoring of the fish catch in ports along the southern Brazilian coast, to better understand the natural history of the intriguing chimeras.
关键词：Callorhinchus Callorynchus;American Elephantfish;Holocephali;Chimaera;Bycatch;Southwest Atlantic Ocean