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(Laboratório de Biodiversidade, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brazil;Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos (GEMM-Lagos), Araruama, RJ, Brazil;Universidade Federal do Maranhão (UFMA), Laboratório de Organismos Aquáticos, Departamento de Oceanografia e Limnologia, São Luís, MA, Brazil;Universidade Federal do Maranhão (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-graduação em Etnobiologia e Conservação da Natureza, Universidade Federal Rural de Pernambuco (UFRuPE), Campus Dois Irmãos, Recife, PE, Brazil)

机构地区：[1]Laboratório de Biodiversidade, Instituto Oswaldo Cruz/Fiocruz, Rio de Janeiro, RJ, Brazil [2]Grupo de Estudos de Mamíferos Marinhos da Regiã [3]o dos Lagos (GEMM-Lagos), Araruama, RJ, Brazil [4]Universidade Federal do Maranhã [5]o (UFMA), Laboratório de Organismos Aquáticos, Departamento de Oceanografia e Limnologia, Sã [6]o Luís, MA, Brazil [7]Universidade Federal do Maranhã [8]o (UFMA), Curso de Engenharia de Pesca, Pinheiro, MA, Brazil [9]Setor de Mamíferos, Departamento de Vertebrados, Museu Nacional/UFRJ, Rio de Janeiro, RJ, Brazil [10]Departamento de Ciências Biológicas, Programa de Pós-graduaç [11]o em Etnobiologia e Conservaç [12]o da Natureza, Universidade Federal Rural de Pernambuco (UFRuPE), Campus Dois Irmã [13]os, Recife, PE, Brazil

出　　处：《Natural Resources》2020年第10期439-445,共7页自然资源（英文）

摘　　要：<span style="font-family:Verdana;">Chimaeras</span><span style="font-family:;" "=""><span style="font-family:Verdana;">, 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, </span><i><span style="font-family:Verdana;">Callorhinchus callorynchus</span></i><span style="font-family:Verdana;">, may be found in marine waters off southeastern Brazil, as far north as the state of S<span style="font-size:10.0pt;font-family:"">&#227;</span>o Paulo. Here we report that </span><i><span style="font-family:Verdana;">C. callorynchus</span></i><span style="font-family:Verdana;">, caught with bottom gillnet, was found in an urban fish market in the city of Rio de Janeiro (~23<span style="white-space:nowrap;">&#730;</span>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.</span></span><span style="font-family:Verdana;">Chimaeras</span><span style="font-family:;" "=""><span style="font-family:Verdana;">, 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, </span><i><span style="font-family:Verdana;">Callorhinchus callorynchus</span></i><span style="font-family:Verdana;">, may be found in marine waters off southeastern Brazil, as far north as the state of S<span style="font-size:10.0pt;font-family:"">&#227;</span>o Paulo. Here we report that </span><i><span style="font-family:Verdana;">C. callorynchus</span></i><span style="font-family:Verdana;">, caught with bottom gillnet, was found in an urban fish market in the city of Rio de Janeiro (~23<span style="white-space:nowrap;">&#730;</span>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.</span></span>

关 键 词：Callorhinchus Callorynchus American Elephantfish Holocephali CHIMAERA BYCATCH Southwest Atlantic Ocean 

分 类 号：O17[理学—数学]