Nematode parasites of Pescada Gó, Macrodon ancylodon Bloch and Schneider, 1801 (Osteichthyes, Sciaenidae), from Vila dos Pescadores, Bragança-PA, Brazil

Brazilian Archives of Biology and Technology

Rodrigo Yudi Fujimoto¹  Aline De Melo Braun Sarmento²  Daniel Guerreiro Diniz²  Jorge Costa Eiras¹ 

[1] ,Universidade Federal do ParáBragança PA ,Brasil

关键词: Macrodon ancylodon;    Pescada Gó;    Nematodes;    Raphidascaris sp;    Goezia sp;    Cucullanus sp;   

DOI  :  10.1590/S1516-89132012000600009

来源: SciELO

【 摘 要 】

The objective of this work was to evaluate the host/parasite relationship of nematodes in Macrodon ancylodon. Ninety seven fishes (50 in wet season and 47 in dry season) were weighed (167.1 ± 109.9g) and measured (28.3 ± 5.2cm). Only twelve specimens were not infected by any parasites and the prevalence of infection was 87.6%. The highest prevalence values were observed in August and September (dry season, 100%). The stomach was the most infected organ during the whole months (prevalence of 64.2%, and mean intensity of 4.6±7.8 parasites/fish), and the medium intestine showed the lowest infection (prevalence 27.3% and mean intensity 2.5±2.1 parasites/fish). The nematodes were identified as Raphidascaris sp., Goezia sp. and Cucullanus sp. Only the male and juvenile fishes could be presented different values of infection according to rainfall, being more infected in August to October. The female hosts presented higher values of abundance and mean intensity of infection (p<0.01) throughout the year.

【 授权许可】

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