Additional Records of the American Elephantfish <i>Callorhinchus callorynchus</i>(Chondrichthyes, Holocephali, Chimaeriformes) in Southeastern Brazil

作     者：Salvatore Siciliano Ana Rita O. Palmeira-Nunes Getulio Rincon Jorge Luiz Silva Nunes Sérgio C. Moreira Márcio L. V. Barbosa-Filho Salvatore Siciliano;Ana Rita O. Palmeira-Nunes;Getulio Rincon;Jorge Luiz Silva Nunes;Sérgio C. Moreira;Márcio L. V. Barbosa-Filho

作者机构：Laboratório de Biodiversidade Instituto Oswaldo Cruz/Fiocruz Rio de Janeiro RJ Brazil Grupo de Estudos de Mamíferos Marinhos da Regiã o dos Lagos (GEMM-Lagos) Araruama RJ Brazil Universidade Federal do Maranhã o (UFMA) Laboratório de Organismos Aquáticos Departamento de Oceanografia e Limnologia Sã o Luís MA Brazil Universidade Federal do Maranhã o (UFMA) Curso de Engenharia de Pesca Pinheiro MA Brazil Setor de Mamíferos Departamento de Vertebrados Museu Nacional/UFRJ Rio de Janeiro RJ Brazil Departamento de Ciências Biológicas Programa de Pós-graduaç o em Etnobiologia e Conservaç o da Natureza Universidade Federal Rural de Pernambuco (UFRuPE) Campus Dois Irmã os Recife PE Brazil 

出 版 物：《Natural Resources》 (自然资源（英文）)

年 卷 期：2020年第11卷第10期

页      面：439-445页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Callorhinchus Callorynchus American Elephantfish Holocephali Chimaera Bycatch Southwest Atlantic Ocean 

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.