Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil
The development stages of male and female gonads in the freshwater crab Sylviocarcinus pictus (H. Milne Eduards, 1853) were described through macroscopic and microscopic (histology) examinations. The histological description was based on 40 specimens (20 each sex). Four gonadal development stages we...
| Autor principal: | SILVA, Leiliane Souza da |
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| Outros Autores: | MARTINELLI-LEMOS, Jussara Moretto, FERREIRA, Maria Auxiliadora Pantoja, ROCHA, Rossineide Martins da |
| Grau: | Artigo |
| Idioma: | eng |
| Publicado em: |
2013
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| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/4417 |
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ir-2011-4417 |
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ir-2011-44172019-05-23T11:11:46Z Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil SILVA, Leiliane Souza da MARTINELLI-LEMOS, Jussara Moretto FERREIRA, Maria Auxiliadora Pantoja ROCHA, Rossineide Martins da Crustáceo Caranguejo de água doce Sylviocarcinus pictus Biologia reprodutiva Histologia gonadal Estuários Amazônia brasileira The development stages of male and female gonads in the freshwater crab Sylviocarcinus pictus (H. Milne Eduards, 1853) were described through macroscopic and microscopic (histology) examinations. The histological description was based on 40 specimens (20 each sex). Four gonadal development stages were found for females: immature, ripening, mature and spawned. The following female cells were found: ovogonia, oocytes in initial vitellogenesis, oocytes in advanced vitellogenesis, follicular cells and post-ovulatory follicles. Three development stages were found for males: immature, maturing and mature, with the indication of: spermatogonia, spermatocytes, spermatids, spermatozoids and spermatophores. These data suggest the pattern described in the literature. Size at sexual maturity was 32.3 mm of carapace width for males and 31.5 mm for females. The gonadal stages observed macroscopically by volume and color were validated through histological analysis and proved to be useful method for the rapid identification of sexual maturity in the species. The present study offers previously unpublished data on the reproductive biology of Sylviocarcinus pictus. Os estádios de desenvolvimento das gônadas de machos e fêmeas de caranguejos Sylviocarcinus pictus (H. Milne Eduards, 1853) foram descritos por meio de observações macroscópicas e microscópicas (técnica histológica). A descrição histológica foi baseada em 40 espécimes (20 de cada sexo). Foram identificados quatro estádios de desenvolvimento para as fêmeas: imaturo, em maturação, maturo e em reabsorção. As seguintes células foram encontradas: ovogônias, ovócitos em vitelogênese inicial, ovócitos em vitelogênese avançada, células foliculares e folículos pós-ovulatórios. Três estádios de desenvolvimento foram encontrados para os machos: imaturo, em maturação e maturo, com indicação de: espermatogônias, espermatócitos, espermátides, espermatozóides e espermatóforos. Tais dados sugerem o padrão descrito na literatura. O tamanho da maturidade sexual foi de 32,3 mm de largura da carapaça para machos e 31,5 mm para fêmeas. Os estádios gonadais observados macroscopicamente por meio do volume e da coloração das gônadas foram validados pela análise histológica, sendo um critério útil e ágil para a identificação da maturidade sexual para a espécie. O presente estudo oferece informações inéditas sobre a biologia reprodutiva de Sylviocarcinus pictus. 2013-11-07T17:58:08Z 2013-11-07T17:58:08Z 2012-09 Artigo de Periódico SILVA, Leiliane S., et al. Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 84, n. 3, p. 789-798, set. 2012. Disponível em: <http://www.scielo.br/pdf/aabc/v84n3/v84n3a21.pdf>. Acesso em: 01 nov. 2013. <http://dx.doi.org/10.1590/S0001-37652012000300021>. 0001-3765 http://repositorio.ufpa.br/jspui/handle/2011/4417 eng Acesso Aberto application/pdf |
| institution |
Repositório Institucional - Universidade Federal do Pará |
| collection |
RI-UFPA |
| language |
eng |
| topic |
Crustáceo Caranguejo de água doce Sylviocarcinus pictus Biologia reprodutiva Histologia gonadal Estuários Amazônia brasileira |
| spellingShingle |
Crustáceo Caranguejo de água doce Sylviocarcinus pictus Biologia reprodutiva Histologia gonadal Estuários Amazônia brasileira SILVA, Leiliane Souza da Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| topic_facet |
Crustáceo Caranguejo de água doce Sylviocarcinus pictus Biologia reprodutiva Histologia gonadal Estuários Amazônia brasileira |
| description |
The development stages of male and female gonads in the freshwater crab Sylviocarcinus pictus (H. Milne Eduards, 1853) were described through macroscopic and microscopic (histology) examinations. The histological description was based on 40 specimens (20 each sex). Four gonadal development stages were found for females: immature, ripening, mature and spawned. The following female cells were found: ovogonia, oocytes in initial vitellogenesis, oocytes in advanced vitellogenesis, follicular cells and post-ovulatory follicles. Three development stages were found for males: immature, maturing and mature, with the indication of: spermatogonia, spermatocytes, spermatids, spermatozoids and spermatophores. These data suggest the pattern described in the literature. Size at sexual maturity was 32.3 mm of carapace width for males and 31.5 mm for females. The gonadal stages observed macroscopically by volume and color were validated through histological analysis and proved to be useful method for the rapid identification of sexual maturity in the species. The present study offers previously unpublished data on the reproductive biology of Sylviocarcinus pictus. |
| format |
Artigo |
| author |
SILVA, Leiliane Souza da |
| author2 |
MARTINELLI-LEMOS, Jussara Moretto FERREIRA, Maria Auxiliadora Pantoja ROCHA, Rossineide Martins da |
| author2Str |
MARTINELLI-LEMOS, Jussara Moretto FERREIRA, Maria Auxiliadora Pantoja ROCHA, Rossineide Martins da |
| title |
Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| title_short |
Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| title_full |
Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| title_fullStr |
Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| title_full_unstemmed |
Gonadal development in the freshwater crab Sylviocarcinus pictus (H. Milne Edwards, 1853) (Brachyura: Trichodactylidae) from the Guamá river, state of Pará, Brazil |
| title_sort |
gonadal development in the freshwater crab sylviocarcinus pictus (h. milne edwards, 1853) (brachyura: trichodactylidae) from the guamá river, state of pará, brazil |
| publishDate |
2013 |
| url |
http://repositorio.ufpa.br/jspui/handle/2011/4417 |
| _version_ |
1832603993844482048 |
| score |
11.755432 |