Fator de condição e relação hepato e esplenossomática em teleósteos de água doce naturalmente parasitados

Marcos Tavares-Dias; Maurício Laterça Martins; Flávio Ruas Moraes; Sérgio Nascimento Kronka

doi:10.4025/actascibiolsci.v22i0.2944

Condition factor, hepatosomatic and splenosomatic relation of freshwater fishes naturally parasitized

Authors

Marcos Tavares-Dias CAUNESP-UNESP Author
Maurício Laterça Martins UNESP Author
Flávio Ruas Moraes UNESP Author
Sérgio Nascimento Kronka UNESP Author

DOI:

https://doi.org/10.4025/actascibiolsci.v22i0.2944

Keywords:

relação hepatossomática, relação esplenossomática, fator de condição, peixes de água doce, parasitas

Abstract

The present paper describes the mean values of the splenosomatic (SSR) and hepatosomatic relation (HSR) and alometric condition factor (Ka) in the Nile tilapia (Oreochromis niloticus Trewavas, 1983), pacu (Piaractus mesopotamicus Holmberg, 1887), piauçu (Leporinus macrocephalus Garavello & Britski, 1988) and in the tambacu hybrid (P. mesopotamicus male x Colossoma macropomum Cuvier, 1818 female) naturally infected with parasites. Specimens of O. niloticus were parasitized with Trichodina sp.; L. macrocephalus with monogenean helminths; P. mesopotamicus with Anacanthorus penilabiatus (Monogenea) and Piscinoodinium pillulare (Dinoflagellida); tambacu hybrid with monogenean, Lernaea cyprinacea and P. pillulare. Results suggested that the parasitism was responsible for the reduction in the condition factor of O. niloticus, L. macrocephalus and P. mesopotamicus, and the SSR of parasitized P. mesopotamicus. Nevertheless, parasitism did not change (P > 0.05) the HSR of parasitized O. niloticus, L. macrocephalus, tambacu and P. mesopotamicus

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Author Biography

Marcos Tavares-Dias, CAUNESP-UNESP

Graduação em Biologia (1989), com Doutorado (2003) e Mestrado (2000) em AqÃ¼icultura de Ãguas Continentais pelo Centro de Aquicultura (CAUNESP) da Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Campus Jaboticabal (SP). É Professor Adjunto I da Universidade Federal do Amazonas, Instituto de Saúde e Biotecnologia, Campus Médio Solimões, Coari, Estado do Amazonas. Tem experiência em Fisiologia e Sanidade de Peixes de Ãgua Doce e Quelônios, com ênfase em Hematologia, Aquicultura, Principais Grupos de Parasitos, Bioquímica e Citoquímica de Células SangÃ¼íneas Currículo Lattes

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PDF (Portuguese)

Published

2008-05-09

Issue

Vol. 22 (2000)

Section

Biology Sciences

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How to Cite

Condition factor, hepatosomatic and splenosomatic relation of freshwater fishes naturally parasitized. (2008). Acta Scientiarum. Biological Sciences, 22, 533-537. https://doi.org/10.4025/actascibiolsci.v22i0.2944