Mudanças ontogênicas no trato digestório e dieta de Apareiodon affinis (Steindachner, 1879) (Osteichthyes, Parodontidae) - DOI: 10.4025/actascibiolsci.v26i3.1542

Miriam Santin; Andréa Bialetzki; Keshiyu Nakatani

doi:10.4025/actascibiolsci.v26i3.1542

**Ontogenic changes in digestive tract and diet shifts of Apareiodon affinis (Steindachner, 1879) (Osteichthyes, Parodontidae)** - DOI: 10.4025/actascibiolsci.v26i3.1542

Authors

Miriam Santin UEM Author
Andréa Bialetzki UEM - Maringá Author
Keshiyu Nakatani UEM Author

DOI:

https://doi.org/10.4025/actascibiolsci.v26i3.1542

Keywords:

Apareiodon affinis, alimentação, larva, juvenil, peixe, rio Paraná

Abstract

Feeding aspects of Apareiodon affinis larvae and juveniles are described in this work. Samples collected by plankton net were taken from February, 1991 to February, 1992 in Ressaco do Leopoldo, Paraná River. The mouth is small and terminal in preflexion and flexion larvae and inferior at the end of this development period and in juveniles. The digestive tract is simple and straight in preflexion larvae, but different in those in postflexion. The diet was basically algae, characterizing this species as algivorous during all its development. The analysis of the digestibility did not show the preferential time of feeding of the different development stages. This was probably because of the sampling type utilized and because of the food consumed by the individuals

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Author Biography

Andréa Bialetzki, UEM - Maringá

Atualmente é biologa da Universidade Estadual de Maringá e pesquisador nível 2 do Conselho Nacional de Desenvolvimento Científico e Tecnológico. Tem experiência na área de Ecologia, com ênfase em Ecologia de Ovos e Larvas de Peixes. Currículo Lattes

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Published

2008-04-01

Issue

Vol. 26 No. 3 (2004)

Section

Biology Sciences

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How to Cite

Ontogenic changes in digestive tract and diet shifts of Apareiodon affinis (Steindachner, 1879) (Osteichthyes, Parodontidae) - DOI: 10.4025/actascibiolsci.v26i3.1542. (2008). Acta Scientiarum. Biological Sciences, 26(3), 291-298. https://doi.org/10.4025/actascibiolsci.v26i3.1542