Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean
- Autores
- Colonello, Jorge Horacio; Garcia, Mirta Lidia; Menni, Roberto Carlos
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This study provides the first detailed information on the reproductive biology of the lesser guitarfish Zapteryx brevirostris in the south‐western Atlantic Ocean between latitudes 34° and 42° S. A total of 320 males (196–647 mm total length, LT) and 336 females (200–640 mm LT) were analysed. No significant differences were observed in size at 50% maturity between males (499 mm LT) and females (506 mm LT). Three seasonal patterns were related to the testes mass, the development of spermatocysts and the presence of spermatozoa in genital ducts. Females showed a 3 year reproductive cycle, with 2 years of ovarian maturation and 1 year of gestation, including a mean annual fecundity of one to two embryos. Synchronicity of both ovulating females and males with sperm in genital ducts indicated that ovulation and hence mating occurs during winter. Birth was assumed to occur during winter, but neither ovulation nor mating is simultaneous with this reproductive event. Despite its low economic value, a decline in abundance in the region, together with a low reproductive efficiency, indicates that the Z. brevirostris population should be monitored closely.
Fil: Colonello, Jorge Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Garcia, Mirta Lidia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Menni, Roberto Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
ELASMOBRANCH
MATURITY
OVARY
REPRODUCTION
SEASONALITY
SPERMATOGENESIS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/95088
Ver los metadatos del registro completo
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Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic OceanColonello, Jorge HoracioGarcia, Mirta LidiaMenni, Roberto CarlosELASMOBRANCHMATURITYOVARYREPRODUCTIONSEASONALITYSPERMATOGENESIShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1This study provides the first detailed information on the reproductive biology of the lesser guitarfish Zapteryx brevirostris in the south‐western Atlantic Ocean between latitudes 34° and 42° S. A total of 320 males (196–647 mm total length, LT) and 336 females (200–640 mm LT) were analysed. No significant differences were observed in size at 50% maturity between males (499 mm LT) and females (506 mm LT). Three seasonal patterns were related to the testes mass, the development of spermatocysts and the presence of spermatozoa in genital ducts. Females showed a 3 year reproductive cycle, with 2 years of ovarian maturation and 1 year of gestation, including a mean annual fecundity of one to two embryos. Synchronicity of both ovulating females and males with sperm in genital ducts indicated that ovulation and hence mating occurs during winter. Birth was assumed to occur during winter, but neither ovulation nor mating is simultaneous with this reproductive event. Despite its low economic value, a decline in abundance in the region, together with a low reproductive efficiency, indicates that the Z. brevirostris population should be monitored closely.Fil: Colonello, Jorge Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Garcia, Mirta Lidia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Menni, Roberto Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley Blackwell Publishing, Inc2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95088Colonello, Jorge Horacio; Garcia, Mirta Lidia; Menni, Roberto Carlos; Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 78; 1; 1-2011; 287-3020022-1112CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1095-8649.2010.02864.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8649.2010.02864.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:48:31Zoai:ri.conicet.gov.ar:11336/95088instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:48:32.076CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
title |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
spellingShingle |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean Colonello, Jorge Horacio ELASMOBRANCH MATURITY OVARY REPRODUCTION SEASONALITY SPERMATOGENESIS |
title_short |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
title_full |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
title_fullStr |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
title_full_unstemmed |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
title_sort |
Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean |
dc.creator.none.fl_str_mv |
Colonello, Jorge Horacio Garcia, Mirta Lidia Menni, Roberto Carlos |
author |
Colonello, Jorge Horacio |
author_facet |
Colonello, Jorge Horacio Garcia, Mirta Lidia Menni, Roberto Carlos |
author_role |
author |
author2 |
Garcia, Mirta Lidia Menni, Roberto Carlos |
author2_role |
author author |
dc.subject.none.fl_str_mv |
ELASMOBRANCH MATURITY OVARY REPRODUCTION SEASONALITY SPERMATOGENESIS |
topic |
ELASMOBRANCH MATURITY OVARY REPRODUCTION SEASONALITY SPERMATOGENESIS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
This study provides the first detailed information on the reproductive biology of the lesser guitarfish Zapteryx brevirostris in the south‐western Atlantic Ocean between latitudes 34° and 42° S. A total of 320 males (196–647 mm total length, LT) and 336 females (200–640 mm LT) were analysed. No significant differences were observed in size at 50% maturity between males (499 mm LT) and females (506 mm LT). Three seasonal patterns were related to the testes mass, the development of spermatocysts and the presence of spermatozoa in genital ducts. Females showed a 3 year reproductive cycle, with 2 years of ovarian maturation and 1 year of gestation, including a mean annual fecundity of one to two embryos. Synchronicity of both ovulating females and males with sperm in genital ducts indicated that ovulation and hence mating occurs during winter. Birth was assumed to occur during winter, but neither ovulation nor mating is simultaneous with this reproductive event. Despite its low economic value, a decline in abundance in the region, together with a low reproductive efficiency, indicates that the Z. brevirostris population should be monitored closely. Fil: Colonello, Jorge Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina Fil: Garcia, Mirta Lidia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Menni, Roberto Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
This study provides the first detailed information on the reproductive biology of the lesser guitarfish Zapteryx brevirostris in the south‐western Atlantic Ocean between latitudes 34° and 42° S. A total of 320 males (196–647 mm total length, LT) and 336 females (200–640 mm LT) were analysed. No significant differences were observed in size at 50% maturity between males (499 mm LT) and females (506 mm LT). Three seasonal patterns were related to the testes mass, the development of spermatocysts and the presence of spermatozoa in genital ducts. Females showed a 3 year reproductive cycle, with 2 years of ovarian maturation and 1 year of gestation, including a mean annual fecundity of one to two embryos. Synchronicity of both ovulating females and males with sperm in genital ducts indicated that ovulation and hence mating occurs during winter. Birth was assumed to occur during winter, but neither ovulation nor mating is simultaneous with this reproductive event. Despite its low economic value, a decline in abundance in the region, together with a low reproductive efficiency, indicates that the Z. brevirostris population should be monitored closely. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/95088 Colonello, Jorge Horacio; Garcia, Mirta Lidia; Menni, Roberto Carlos; Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 78; 1; 1-2011; 287-302 0022-1112 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/95088 |
identifier_str_mv |
Colonello, Jorge Horacio; Garcia, Mirta Lidia; Menni, Roberto Carlos; Reproductive biology of the lesser guitarfish Zapteryx brevirostris from the south‐western Atlantic Ocean; Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 78; 1; 1-2011; 287-302 0022-1112 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1095-8649.2010.02864.x info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1095-8649.2010.02864.x |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613506928738304 |
score |
13.070432 |