The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/1244 |
Resumo: | Specimens of Rioraja agassizi were collected at Guarujá pier, São Paulo State, Brazil, from March 2005 to March 2006. A total of 275 males were captured. Based on the analysis of the clasper length, gonad weight, clasper gland length, alar thorns and lobule diameter, the size-at-maturity was estimated to be 32 cm. There were 1049 females in the record. Size-at-maturity was calculated in 40 cm. Sexual resting females were observed. Gonadosomatic and hepatosomatic indexes varied significantly in both sexes throughout the year. However, ovulation, egg-laying and presence of sperm in the seminal vesicle were observed all year round. For this reason, an annual cycle with at least one peak in the sexual activity is proposed for this species. |
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Oddone, Maria CristinaAmorim, Alberto Ferreira deMancini, PatriciaNorbis, WalterVelasco, Gonzalo2011-11-01T16:02:24Z2011-11-01T16:02:24Z2007ODDONE, Maria Cristina et al. The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes, Rajidae), in southeastern Brazil, SW Atlantic Ocean. Scientia Marina , v. 71, p. 593-604, 2007. Disponível em: <http://www.icm.csic.es/scimar/pdf/71/sm71n3593.pdf>. Acesso em: 31 out. 2011.0214-8358http://repositorio.furg.br/handle/1/1244Specimens of Rioraja agassizi were collected at Guarujá pier, São Paulo State, Brazil, from March 2005 to March 2006. A total of 275 males were captured. Based on the analysis of the clasper length, gonad weight, clasper gland length, alar thorns and lobule diameter, the size-at-maturity was estimated to be 32 cm. There were 1049 females in the record. Size-at-maturity was calculated in 40 cm. Sexual resting females were observed. Gonadosomatic and hepatosomatic indexes varied significantly in both sexes throughout the year. However, ovulation, egg-laying and presence of sperm in the seminal vesicle were observed all year round. For this reason, an annual cycle with at least one peak in the sexual activity is proposed for this species.BIOLOGÍAREPRODUCTIVADE RIORAJAAGASSIZI (MÜLLERAND HENLE, 1841) (CHONDRICHTHYES: RAJIDAE), ENEL SUDESTEBRASILEÑO, ATLÁNTICO SUDOCCIDENTAL. –Se colectaron especímenes de Rioraja agassizi en el puerto de Guarujá, Estado de San Pablo, Brasil, desde marzo de 2005 hasta marzo de 2006. Se capturó un número total de 275 machos. De acuerdo con el análisis de la longitud del clasper y de la glándula del clasper, el peso de las gónadas, el diámetro de los lóbulos y el número de espinas alares, el tamaño de primera madurez sexual fue estimado en 32 cm. Se capturó un número de 1049 hembras. El tamaño de primera madurez sexual fue calculado en 40 cm. Se observó reposo sexual en hembras de esta especie. Los índices gonadosomáticos y hepatosomáticos variaron significativamente en ambos sexos a lo largo del año. Sin embargo, la ovulación y la deposición de cápsulas ovígeras sucedieron continuamente durante todo el año, así como la presencia de esperma en la vesícula seminal en ejemplares adultos. Por este motivo, se propone para esta especie, un ciclo reproductivo anual, con por lo menos un pico en la actividad sexual.engClasperClasper glandVitellogenic folliclesElasmobranchsNidamental glandEgg-bearingGonadsElasmobranquiosGlándula nidamentáriaDeposición de cápsulas ovígerasGónadasThe reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Oceaninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALThe reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes, Rajidae), in southeastern Brazil, SW Atlantic Ocean.PDFThe reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes, Rajidae), in southeastern Brazil, SW Atlantic Ocean.PDFapplication/pdf3522561https://repositorio.furg.br/bitstream/1/1244/1/The%20reproductive%20biology%20and%20cycle%20of%20Rioraja%20agassizi%20%28M%c3%bcller%20and%20Henle%2c%201841%29%20%28Chondrichthyes%2c%20Rajidae%29%2c%20in%20southeastern%20Brazil%2c%20SW%20Atlantic%20Ocean.PDFe0e7984671cb62fe0f3101a9d5cfdbc7MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/1244/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/12442011-11-08 22:54:48.615open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2011-11-09T00:54:48Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
title |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
spellingShingle |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean Oddone, Maria Cristina Clasper Clasper gland Vitellogenic follicles Elasmobranchs Nidamental gland Egg-bearing Gonads Elasmobranquios Glándula nidamentária Deposición de cápsulas ovígeras Gónadas |
title_short |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
title_full |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
title_fullStr |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
title_full_unstemmed |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
title_sort |
The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes: Rajidae) in southeastern Brazil, SW Atlantic Ocean |
author |
Oddone, Maria Cristina |
author_facet |
Oddone, Maria Cristina Amorim, Alberto Ferreira de Mancini, Patricia Norbis, Walter Velasco, Gonzalo |
author_role |
author |
author2 |
Amorim, Alberto Ferreira de Mancini, Patricia Norbis, Walter Velasco, Gonzalo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Oddone, Maria Cristina Amorim, Alberto Ferreira de Mancini, Patricia Norbis, Walter Velasco, Gonzalo |
dc.subject.por.fl_str_mv |
Clasper Clasper gland Vitellogenic follicles Elasmobranchs Nidamental gland Egg-bearing Gonads Elasmobranquios Glándula nidamentária Deposición de cápsulas ovígeras Gónadas |
topic |
Clasper Clasper gland Vitellogenic follicles Elasmobranchs Nidamental gland Egg-bearing Gonads Elasmobranquios Glándula nidamentária Deposición de cápsulas ovígeras Gónadas |
description |
Specimens of Rioraja agassizi were collected at Guarujá pier, São Paulo State, Brazil, from March 2005 to March 2006. A total of 275 males were captured. Based on the analysis of the clasper length, gonad weight, clasper gland length, alar thorns and lobule diameter, the size-at-maturity was estimated to be 32 cm. There were 1049 females in the record. Size-at-maturity was calculated in 40 cm. Sexual resting females were observed. Gonadosomatic and hepatosomatic indexes varied significantly in both sexes throughout the year. However, ovulation, egg-laying and presence of sperm in the seminal vesicle were observed all year round. For this reason, an annual cycle with at least one peak in the sexual activity is proposed for this species. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007 |
dc.date.accessioned.fl_str_mv |
2011-11-01T16:02:24Z |
dc.date.available.fl_str_mv |
2011-11-01T16:02:24Z |
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.citation.fl_str_mv |
ODDONE, Maria Cristina et al. The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes, Rajidae), in southeastern Brazil, SW Atlantic Ocean. Scientia Marina , v. 71, p. 593-604, 2007. Disponível em: <http://www.icm.csic.es/scimar/pdf/71/sm71n3593.pdf>. Acesso em: 31 out. 2011. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/1244 |
dc.identifier.issn.none.fl_str_mv |
0214-8358 |
identifier_str_mv |
ODDONE, Maria Cristina et al. The reproductive biology and cycle of Rioraja agassizi (Müller and Henle, 1841) (Chondrichthyes, Rajidae), in southeastern Brazil, SW Atlantic Ocean. Scientia Marina , v. 71, p. 593-604, 2007. Disponível em: <http://www.icm.csic.es/scimar/pdf/71/sm71n3593.pdf>. Acesso em: 31 out. 2011. 0214-8358 |
url |
http://repositorio.furg.br/handle/1/1244 |
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eng |
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eng |
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openAccess |
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Universidade Federal do Rio Grande (FURG) |
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