| Registro completo |
| Provedor de dados: |
Acta Amazonica
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| País: |
Brazil
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| Título: |
Sex determination in the Giant fish of Amazon Basin, Arapaima gigas (Osteoglossiformes, Arapaimatidae), using laparoscopy
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| Autores: |
Carreiro,Carlos Riedel Porto
Furtado-Neto,Manuel Antônio de Andrade
Mesquita,Pedro Eymard Campos
Bezerra,Tácito Araújo
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| Data: |
2011-01-01
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| Ano: |
2011
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| Palavras-chave: |
Arapaima gigas
Fish anesthesia
Laparoscopy
Sex differentiation
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| Resumo: |
The Giant of Amazon basin, pirarucu, Arapaima gigas, is the largest scaled freshwater fish in the world. pirarucu cultivation has recently started, driven by the decline in natural populations and high market value. Currently, there are no reliable methods for sexual differentiation in this species other than direct examination of gonads, which requires dissection of specimens. A non-lethal and less invasive method for sexual identification is highly desirable in order to properly group broodstock for mating and offspring production. We utilized laparoscopic examination in anesthetized pirarucu to differentiate between male and female individuals. This method allowed for the observation and differentiation of the reproductive organs within an individual. Our results suggest that laparoscopy is an efficient method for sex differentiation in pirarucu causing minimal stress to the fish.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672011000300012
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| Editor: |
Instituto Nacional de Pesquisas da Amazônia
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| Relação: |
10.1590/S0044-59672011000300012
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| Formato: |
text/html
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| Fonte: |
Acta Amazonica v.41 n.3 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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