Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico

The southern stingray Dasyatis americana (Hildebrand & Schroeder, 1928) is the most landed elasmobranch by small-scale fleets in southern gulf of Mexico. However, little is known of its life history parameters in this region. In this study, a total of 900 specimens were collected from February 2...

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Detalles Bibliográficos
Autores: Edith Ramírez-Mosqueda, Juan Carlos Pérez-Jiménez, Manuel Mendoza-Carranza
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:México
Institución:El Colegio de la Frontera Sur
Repositorio:Redalyc-ECOSUR
OAI Identifier:oai:redalyc.org:175024254008
Acceso en línea:https://www.redalyc.org/articulo.oa?id=175024254008
Access Level:acceso abierto
Palabra clave:Ciencias de la Tierra
fecundity
gulf of Mexico
Dasyatis americana
reproductive cycle
disc width at maturity
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spelling Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of MexicoEdith Ramírez-MosquedaJuan Carlos Pérez-JiménezManuel Mendoza-CarranzaCiencias de la Tierrafecunditygulf of MexicoDasyatis americanareproductive cycledisc width at maturityThe southern stingray Dasyatis americana (Hildebrand & Schroeder, 1928) is the most landed elasmobranch by small-scale fleets in southern gulf of Mexico. However, little is known of its life history parameters in this region. In this study, a total of 900 specimens were collected from February 2006 to December 2008 to determine the reproductive parameters needed for population assessments by means of ecological risk assessments or demographic analysis. Results suggested that females of D. americana reproduce annually, with a gestation of 7-8 months. The reproductive cycle of females is asynchronous, with ovulation and parturition occurring throughout the year. Females and males matured at 764 and 517 mm disc width (DW50) respectively. D. americana has one of the highest fecundity among dasyatids, from 2 to 7 embryos, with a sex ratio of embryos of 1:1. A linear relationship between maternal DW and fecundity was estimated, the larger females contain more embryos. The status of the population of D. americana is a cause of concern in the southern gulf of Mexico due to its high frequency of capture in artisanal fisheries and its apparently low biological productivity.Pontificia Universidad Católica de Valparaíso2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0718-560Xhttps://www.redalyc.org/articulo.oa?id=175024254008Latin American Journal of Aquatic Research (Chile) Num.2 Vol.40reponame:Redalyc-ECOSURinstname:El Colegio de la Frontera Surinstacron:ECOSURenhttp://www.redalyc.org/revista.oa?id=1750Latin American Journal of Aquatic Researchinfo:eu-repo/semantics/openAccessoai:redalyc.org:1750242540082024-08-23T15:34:00Z
dc.title.none.fl_str_mv Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
title Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
spellingShingle Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
Edith Ramírez-Mosqueda
Ciencias de la Tierra
fecundity
gulf of Mexico
Dasyatis americana
reproductive cycle
disc width at maturity
title_short Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
title_full Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
title_fullStr Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
title_full_unstemmed Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
title_sort Reproductive parameters of the southern stingray Dasyatis americana in southern gulf of Mexico
dc.creator.none.fl_str_mv Edith Ramírez-Mosqueda
Juan Carlos Pérez-Jiménez
Manuel Mendoza-Carranza
author Edith Ramírez-Mosqueda
author_facet Edith Ramírez-Mosqueda
Juan Carlos Pérez-Jiménez
Manuel Mendoza-Carranza
author_role author
author2 Juan Carlos Pérez-Jiménez
Manuel Mendoza-Carranza
author2_role author
author
dc.subject.none.fl_str_mv Ciencias de la Tierra
fecundity
gulf of Mexico
Dasyatis americana
reproductive cycle
disc width at maturity
topic Ciencias de la Tierra
fecundity
gulf of Mexico
Dasyatis americana
reproductive cycle
disc width at maturity
description The southern stingray Dasyatis americana (Hildebrand & Schroeder, 1928) is the most landed elasmobranch by small-scale fleets in southern gulf of Mexico. However, little is known of its life history parameters in this region. In this study, a total of 900 specimens were collected from February 2006 to December 2008 to determine the reproductive parameters needed for population assessments by means of ecological risk assessments or demographic analysis. Results suggested that females of D. americana reproduce annually, with a gestation of 7-8 months. The reproductive cycle of females is asynchronous, with ovulation and parturition occurring throughout the year. Females and males matured at 764 and 517 mm disc width (DW50) respectively. D. americana has one of the highest fecundity among dasyatids, from 2 to 7 embryos, with a sex ratio of embryos of 1:1. A linear relationship between maternal DW and fecundity was estimated, the larger females contain more embryos. The status of the population of D. americana is a cause of concern in the southern gulf of Mexico due to its high frequency of capture in artisanal fisheries and its apparently low biological productivity.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0718-560X
https://www.redalyc.org/articulo.oa?id=175024254008
identifier_str_mv 0718-560X
url https://www.redalyc.org/articulo.oa?id=175024254008
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=1750
dc.rights.none.fl_str_mv Latin American Journal of Aquatic Research
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Latin American Journal of Aquatic Research
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pontificia Universidad Católica de Valparaíso
publisher.none.fl_str_mv Pontificia Universidad Católica de Valparaíso
dc.source.none.fl_str_mv Latin American Journal of Aquatic Research (Chile) Num.2 Vol.40
reponame:Redalyc-ECOSUR
instname:El Colegio de la Frontera Sur
instacron:ECOSUR
instname_str El Colegio de la Frontera Sur
instacron_str ECOSUR
institution ECOSUR
reponame_str Redalyc-ECOSUR
collection Redalyc-ECOSUR
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812455

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