Movimentação de duas espécies de Loricariidae através de bueiro em riacho neotropical: desempenho na passagem e comportamento diário

• Ano de defesa: 2013
• Autor(a) principal: Celestino, Leandro Fernandes
• Orientador(a): Makrakis, Sérgio
• Banca de defesa: Makrakis, Maristela Cavicchioli , Fontes Junior, Helio Martins
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual do Oeste do Parana; Toledo
• Programa de Pós-Graduação: Programa de Pós-Graduação em Recursos Pesqueiros e Engenharia de Pesca
• Departamento: Centro de Engenharias e Ciências Exatas
• País: BR
• Palavras-chave em Português: Passagem para peixe; Bueiro; Cascudo; PIT-telemetria
• Palavras-chave em Inglês: Fish passage; Culvert; PIT-temeletry
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA
• Link de acesso: http://tede.unioeste.br:8080/tede/handle/tede/1928

The neotropical streams have a rich and important ichthyofauna, nevertheless, in many of these streams there are culverts in his course from the construction of highways. These culverts have the potential to enable the free passage of fish and even restrict the movements, especially upstream. The aim of this study was to evaluate the movement of two Loricariidae species, Ancistrus sp. and Hypostomus acistroides, with the RFID system in a Neotropical stream with a culvert in his course. The passage performance of these species and the daily behavior of the movements on culverts were compared. The results indicated possible difficulty in accessing the culvert: Hypostomus ancistroides has apparently most successful upstream movements relative to Ancistrus sp., demonstrating that besides the low levels of transposition, the culvert can still be a selective barrier to movement. The two species showed greater nocturnal activity, nevertheless, their behaviors differ between periods: the highest activity to Ancistrus sp. occurred dawn (0:00 to 5:59) and to Hypostomus ancistroides the movements were more intense at night (18:00 to 23:59) indicating possible temporal segregation of behavior.