Simultaneous activity of male and female gonads in intersex hermit crabs

Autor(es)

Sant'Anna, Bruno Sampaio ^{[1, 2]} ; Turra, Alexander ^[1] ; Zara, Fernando Jose ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Oceanog, Dept Oceanog Biol, BR-05508900 Sao Paulo - Brazil

^[2] Univ Estadual Paulista, Area Zool, BR-13506900 Rio Claro, SP - Brazil

^[3] Univ Estadual Paulista, FCAV, Dept Biol Aplicada, BR-14884900 Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AQUATIC BIOLOGY; v. 10, n. 3, p. 201-209, 2010.
• Citações Web of Science: 18

Resumo

Intersexuality in hermit crabs was investigated using anatomical, histological and electron-microscopy techniques, with Clibanarius vittatus as a model. The specimens were collected in the intertidal zone of Pescadores Beach, state of Sao Paulo, Brazil, and dissected to describe the anatomy of the reproductive organs. Different portions of the reproductive system were stained with hematoxylin and eosin, and the gonopore morphology was analyzed by scanning electron microscopy. The intersex individuals showed both male and female reproductive systems, with ducts that are connected to the gonopores. The morphology of the gonopores was similar in males and females. The intersex individuals also developed functional male and female gonads in the same individual. These observations confirmed that intersex hermit crabs can reproduce as males or females, thus supporting the hypothesis that they may be part of a true sequential hermaphroditic process. (AU)

• Processo FAPESP: 05/04707-5 - Histologia e ultrassonografia do desenvolvimento das gônadas de Brachyura (Crustacea)
• Beneficiário: Fernando Jose Zara
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 06/57007-3 - Avaliação da contaminação do ermitão Clibanarius vittatus (Decapoda, Anomura) por TBT (tributilestanho) na natureza e determinação experimental de sua via de assimilação, tempo de depuração e efeito na intersexualidade
• Beneficiário: Alexander Turra
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 06/61589-8 - Análise experimental da contaminação do ermitão Clibanarius vittatus (Decapoda, Anomura) por TBT (tributilestanho): em busca de uma resposta para a intersexualidade em ermitões
• Beneficiário: Bruno Sampaio Sant'Anna
• Modalidade de apoio: Bolsas no Brasil - Doutorado