Hermaphroditism among dioecious Tagelus plebeius (Lightfoot, 1786) (Mollusca, Psammobiidae) and Iphigenia brasiliana (Lamarck, 1818) (Mollusca, Donacidae) on the Cachoeira River estuary, Ilhéus, Bahia, Brazil
| Autor: | J J B Santos, Guisla Boehs, L O Ceuta |
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| Rok vydání: | 2008 |
| Předmět: |
Male
Disorders of Sex Development Zoology Animals Paraffin embedding Hermaphroditism Mollusca geography Hermafroditismo geography.geographical_feature_category biology Ecology Bahia Tagelus plebeius Histology Estuary Iphigenia brasiliana biology.organism_classification Psammobiidae estuário do Rio Cachoeira Donacidae Cachoeira River estuary Female General Agricultural and Biological Sciences Brazil |
| Zdroj: | Brazilian Journal of Biology, Volume: 70, Issue: 1, Pages: 125-127, Published: FEB 2010 Brazilian Journal of Biology v.70 n.1 2010 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE |
| ISSN: | 1678-4375 |
| Popis: | The samples of Tagelus plebeius and Iphigenia brasiliana were manually collected on the Cachoeira River estuary region (Ilhéus, BA, Brazil) between August 2005 and August 2006, with a periodicity of 15 days, with 20 animals collected/sampled, performing 500 samples from each species. The animals were measured, eviscerated and kept in solution of Davidson and after 24-30 hours, they were transferred to ethanol 70%. The material was processed for routine histology, with paraffin embedding, obtaining 7 μm thick slices, stained with Harris hematoxilin and Eosin (HE). By light microscopy analysis, 2 cases of hermaphroditism (0.4%) in T. plebeius samples and one case (0.2%) in I. brasiliana were registered with predominance of female over male follicles. Os exemplares de Tagelus plebeius e Iphigenia brasiliana foram manualmente coletados na região estuarina do Rio Cachoeira (Ilhéus, Bahia), entre agosto de 2005 e agosto de 2006, com coleta quinzenal de 20 animais, totalizando 500 exemplares/espécie. Os animais foram mensurados, eviscerados e fixados em solução de Davidson por 24-30 horas e depois transferidos para etanol a 70%. O material foi processado por técnica rotineira de histologia, com inclusão em parafina, obtenção de cortes com 7 μm de espessura e coloração por hematoxilina de Harris e Eosina (HE). A análise em microscopia de luz evidenciou 2 casos de hermafroditismo (0,4%) em T. plebeius e um caso (0,2%) em I. brasiliana (0,2%), com predominância de folículos femininos sobre os masculinos. |
| Databáze: | OpenAIRE |
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