Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic

Detalhes bibliográficos
Autor(a) principal: Dos Santos, Camila Mayumi Hirata [UNESP]
Data de Publicação: 2014
Outros Autores: Gadig, Otto Bismarck Fazzano [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1017/S1755267214000554
http://hdl.handle.net/11449/173942
Resumo: This study presents the second worldwide report on abnormal embryos of the sharpnose sharks, Rhizoprionodon, based on the two species (Rhizoprionodon porosus and Rhizoprionodon lalandii) occurring on the Brazilian coast. For R. porosus two conjoined twin embryos showing complete duplication of the vertebral column, viscera and several external structures (head, first and second dorsal fins, pectoral fins), and scoliosis in both axis at the pelvic fin level are reported. The three embryos of R. lalandii exhibited numerous lordosis and kyphosis along the entire vertebral column. The possible relationship between anomalies and the human major threats to sharks is discussed based on previous reproductive, genetic and ecotoxicological studies on R. lalandii for southern Brazil.
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spelling Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South AtlanticanatomyanomalyconservationelasmobranchmorphologyThis study presents the second worldwide report on abnormal embryos of the sharpnose sharks, Rhizoprionodon, based on the two species (Rhizoprionodon porosus and Rhizoprionodon lalandii) occurring on the Brazilian coast. For R. porosus two conjoined twin embryos showing complete duplication of the vertebral column, viscera and several external structures (head, first and second dorsal fins, pectoral fins), and scoliosis in both axis at the pelvic fin level are reported. The three embryos of R. lalandii exhibited numerous lordosis and kyphosis along the entire vertebral column. The possible relationship between anomalies and the human major threats to sharks is discussed based on previous reproductive, genetic and ecotoxicological studies on R. lalandii for southern Brazil.UNESP Campus de Rio Claro, Rua 24A no 1515Laboratório de Pesquisa de Elasmobrânquios UNESP Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique s/nUNESP Campus de Rio Claro, Rua 24A no 1515Laboratório de Pesquisa de Elasmobrânquios UNESP Campus Experimental do Litoral Paulista, Praça Infante Dom Henrique s/nUniversidade Estadual Paulista (Unesp)Dos Santos, Camila Mayumi Hirata [UNESP]Gadig, Otto Bismarck Fazzano [UNESP]2018-12-11T17:08:26Z2018-12-11T17:08:26Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1017/S1755267214000554Marine Biodiversity Records, v. 7.1755-2672http://hdl.handle.net/11449/17394210.1017/S17552672140005542-s2.0-850063688492-s2.0-85006368849.pdf21615515755815230000-0001-8423-7299Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMarine Biodiversity Records0,354info:eu-repo/semantics/openAccess2023-10-09T06:02:25Zoai:repositorio.unesp.br:11449/173942Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:53:39.760117Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
title Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
spellingShingle Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
Dos Santos, Camila Mayumi Hirata [UNESP]
anatomy
anomaly
conservation
elasmobranch
morphology
title_short Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
title_full Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
title_fullStr Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
title_full_unstemmed Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
title_sort Abnormal embryos of sharpnose sharks, Rhizoprionodon porosus and Rhizoprionodon lalandii (Elasmobranchii: Carcharhinidae), from Brazilian coast, western South Atlantic
author Dos Santos, Camila Mayumi Hirata [UNESP]
author_facet Dos Santos, Camila Mayumi Hirata [UNESP]
Gadig, Otto Bismarck Fazzano [UNESP]
author_role author
author2 Gadig, Otto Bismarck Fazzano [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Dos Santos, Camila Mayumi Hirata [UNESP]
Gadig, Otto Bismarck Fazzano [UNESP]
dc.subject.por.fl_str_mv anatomy
anomaly
conservation
elasmobranch
morphology
topic anatomy
anomaly
conservation
elasmobranch
morphology
description This study presents the second worldwide report on abnormal embryos of the sharpnose sharks, Rhizoprionodon, based on the two species (Rhizoprionodon porosus and Rhizoprionodon lalandii) occurring on the Brazilian coast. For R. porosus two conjoined twin embryos showing complete duplication of the vertebral column, viscera and several external structures (head, first and second dorsal fins, pectoral fins), and scoliosis in both axis at the pelvic fin level are reported. The three embryos of R. lalandii exhibited numerous lordosis and kyphosis along the entire vertebral column. The possible relationship between anomalies and the human major threats to sharks is discussed based on previous reproductive, genetic and ecotoxicological studies on R. lalandii for southern Brazil.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01
2018-12-11T17:08:26Z
2018-12-11T17:08:26Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1017/S1755267214000554
Marine Biodiversity Records, v. 7.
1755-2672
http://hdl.handle.net/11449/173942
10.1017/S1755267214000554
2-s2.0-85006368849
2-s2.0-85006368849.pdf
2161551575581523
0000-0001-8423-7299
url http://dx.doi.org/10.1017/S1755267214000554
http://hdl.handle.net/11449/173942
identifier_str_mv Marine Biodiversity Records, v. 7.
1755-2672
10.1017/S1755267214000554
2-s2.0-85006368849
2-s2.0-85006368849.pdf
2161551575581523
0000-0001-8423-7299
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Marine Biodiversity Records
0,354
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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