Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil)
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0101-81752003000200022 http://hdl.handle.net/11449/1172 |
Resumo: | A total of 58 Ucides cordatus (Linnaeus, 1763) ovigerous females in final embryonic stage were collected in mangrove forest at Iguape (São Paulo). Each female were kept in laboratory until the larvae hatching and had their carapace width (CW) measured with caliper (0.05 mm) and the larval number (LN) calculated by volumetric method. The hatching rates (HR) were calculated for each animal's size class (5 mm). The values of LN and CW obtained were subjected to regression analyses and the best fitting model was chosen by comparing the obtained determination coefficients (R²). The fertility varied from 71,200 to 220,800 larvae (147,169 ± 32,070 larvae), corresponding to 41.7 to 76.8 mm CW (63.7±7.9 mm), respectively. The relationship LNxCW was expressed by the equation LN = 284.1CW1.5º¹ (N = 58; R² = 0.74; p < 0.01), that showed a positive correlation between the variables. Most part of ovigerous females (89.7%) showed their hatching during the nightly period. A negative correlation between HR and CW was observed in these animals (p < 0.05), probably due to reduction of spermatophores in the seminal receptacle (multiparous females) or due to senility in the females with large size. The biological studies of U. cordatus are very important for practices adoption that preserve and make the rational use of this recourse in Brazilian's mangrove forests. |
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Repositório Institucional da UNESP |
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Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil)Fertility of the mangrove crab Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), at Iguape (São Paulo), BrazilBrachyuraCrustaceaFertilityOcypodidaeReproductionUcidesA total of 58 Ucides cordatus (Linnaeus, 1763) ovigerous females in final embryonic stage were collected in mangrove forest at Iguape (São Paulo). Each female were kept in laboratory until the larvae hatching and had their carapace width (CW) measured with caliper (0.05 mm) and the larval number (LN) calculated by volumetric method. The hatching rates (HR) were calculated for each animal's size class (5 mm). The values of LN and CW obtained were subjected to regression analyses and the best fitting model was chosen by comparing the obtained determination coefficients (R²). The fertility varied from 71,200 to 220,800 larvae (147,169 ± 32,070 larvae), corresponding to 41.7 to 76.8 mm CW (63.7±7.9 mm), respectively. The relationship LNxCW was expressed by the equation LN = 284.1CW1.5º¹ (N = 58; R² = 0.74; p < 0.01), that showed a positive correlation between the variables. Most part of ovigerous females (89.7%) showed their hatching during the nightly period. A negative correlation between HR and CW was observed in these animals (p < 0.05), probably due to reduction of spermatophores in the seminal receptacle (multiparous females) or due to senility in the females with large size. The biological studies of U. cordatus are very important for practices adoption that preserve and make the rational use of this recourse in Brazilian's mangrove forests.Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Biologia AplicadaUniversidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Biologia AplicadaSociedade Brasileira de ZoologiaUniversidade Estadual Paulista (Unesp)Hattori, Gustavo Yomar [UNESP]Pinheiro, Marcelo Antonio Amaro [UNESP]2014-05-20T13:13:21Z2014-05-20T13:13:21Z2003-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article309-313application/pdfhttp://dx.doi.org/10.1590/S0101-81752003000200022Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 20, n. 2, p. 309-313, 2003.0101-8175http://hdl.handle.net/11449/117210.1590/S0101-81752003000200022S0101-81752003000200022S0101-81752003000200022.pdf6829111589524333SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zoologiainfo:eu-repo/semantics/openAccess2024-06-06T13:04:44Zoai:repositorio.unesp.br:11449/1172Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:46:43.943482Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) Fertility of the mangrove crab Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), at Iguape (São Paulo), Brazil |
title |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
spellingShingle |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) Hattori, Gustavo Yomar [UNESP] Brachyura Crustacea Fertility Ocypodidae Reproduction Ucides |
title_short |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
title_full |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
title_fullStr |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
title_full_unstemmed |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
title_sort |
Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus) (Crustacea, Brachyura, Ocypodidae), em Iguape (São Paulo, Brasil) |
author |
Hattori, Gustavo Yomar [UNESP] |
author_facet |
Hattori, Gustavo Yomar [UNESP] Pinheiro, Marcelo Antonio Amaro [UNESP] |
author_role |
author |
author2 |
Pinheiro, Marcelo Antonio Amaro [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Hattori, Gustavo Yomar [UNESP] Pinheiro, Marcelo Antonio Amaro [UNESP] |
dc.subject.por.fl_str_mv |
Brachyura Crustacea Fertility Ocypodidae Reproduction Ucides |
topic |
Brachyura Crustacea Fertility Ocypodidae Reproduction Ucides |
description |
A total of 58 Ucides cordatus (Linnaeus, 1763) ovigerous females in final embryonic stage were collected in mangrove forest at Iguape (São Paulo). Each female were kept in laboratory until the larvae hatching and had their carapace width (CW) measured with caliper (0.05 mm) and the larval number (LN) calculated by volumetric method. The hatching rates (HR) were calculated for each animal's size class (5 mm). The values of LN and CW obtained were subjected to regression analyses and the best fitting model was chosen by comparing the obtained determination coefficients (R²). The fertility varied from 71,200 to 220,800 larvae (147,169 ± 32,070 larvae), corresponding to 41.7 to 76.8 mm CW (63.7±7.9 mm), respectively. The relationship LNxCW was expressed by the equation LN = 284.1CW1.5º¹ (N = 58; R² = 0.74; p < 0.01), that showed a positive correlation between the variables. Most part of ovigerous females (89.7%) showed their hatching during the nightly period. A negative correlation between HR and CW was observed in these animals (p < 0.05), probably due to reduction of spermatophores in the seminal receptacle (multiparous females) or due to senility in the females with large size. The biological studies of U. cordatus are very important for practices adoption that preserve and make the rational use of this recourse in Brazilian's mangrove forests. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-06-01 2014-05-20T13:13:21Z 2014-05-20T13:13:21Z |
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/10.1590/S0101-81752003000200022 Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 20, n. 2, p. 309-313, 2003. 0101-8175 http://hdl.handle.net/11449/1172 10.1590/S0101-81752003000200022 S0101-81752003000200022 S0101-81752003000200022.pdf 6829111589524333 |
url |
http://dx.doi.org/10.1590/S0101-81752003000200022 http://hdl.handle.net/11449/1172 |
identifier_str_mv |
Revista Brasileira de Zoologia. Sociedade Brasileira de Zoologia, v. 20, n. 2, p. 309-313, 2003. 0101-8175 10.1590/S0101-81752003000200022 S0101-81752003000200022 S0101-81752003000200022.pdf 6829111589524333 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zoologia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
309-313 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zoologia |
dc.source.none.fl_str_mv |
SciELO 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 |
|
_version_ |
1808128857110216704 |