Occurrence of intersexuality in " Lambaris" , Astyanax scabripinnis (Jenyns, 1842), small characids from the Brazilian streams-Reference-Cited by-同舟云学术

Occurrence of intersexuality in " Lambaris" , Astyanax scabripinnis (Jenyns, 1842), small characids from the Brazilian streams

Published:2008-04 Issue:2 Volume:51 Page:315-322
ISSN:1516-8913
Container-title:Brazilian Archives of Biology and Technology
language:
Short-container-title:Braz. arch. biol. technol.

Author:

Sá Maria de Fátima Pereira de¹,Fragoso-Moura Evelise Nunes²,Fenerich-Verani Nelsy²,Ferro Dagmar Aparecida de Marco³

Affiliation:

1. Universidade Federal de Alagoas, Brasil

2. Universidade Federal de São Carlos, Brasil

3. Faculdades Integradas de Santa Fé do Sul, Brasil

Abstract

During studies carried out with a small characid (Astyanax scabripinnis), from the Brazilian streams located in Cerrado biome, some gonads of fishes exhibited sparse oocytes in perinucleolar stage embedded in normally developing testicular tissues. Another pattern of gonad intersex with vitellogenic oocytes and mature lobules was observed in the gonads of fishes collected from a reservoir supplied by the Atlantic Forest stream. These gonads in different stages of maturation were examined histologically. The results revealed the patterns occurring in fishes of the same species, from four different populations.

Publisher

FapUNIFESP (SciELO)

Subject

Multidisciplinary

Link

http://www.scielo.br/pdf/babt/v51n2/a11v51n2.pdf

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