Leong, T.S. (1986). Seasonal occurrence of metazoan parasites of Puntius binotatus in an irrigation canal, Pulau Pinang, Malaysia. Journal of Fish Biology. 28(1):9-16.

99468

10.1111/j.1095-8649.1986.tb05136.x [view]

Leong, T.S.

1986

28(1):9-16.

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Two hundred specimens of the cyprinid fish Puntius binotatus were collected over a period of 1 year, February 1976–January 1977, from an irrigation canal in Palau Pinang, Malaysia. Six species of parasites were recovered: Dactylogyrus sp., Rhabdochona penengensis Furtado, 1965; Proteocephalus sp., Bothriocephalus acheilognathi Yamaguti, 1934, Pallisentis gaboes MacCallum, 1918 and Lamproglena minula Capart, 1943. The prevalence and mean density of two ectoparasites (Dactylogyrus sp. and L. minuta) and an endoparasite (B. acheilognathi) were examined in relation to season and host size. Fish were found to be free of these parasites in many months of the year. Prevalence and mean density of Dactylogyrus sp. and L. minuta were found to be highest during the early part of wet season, whereas those of B. acheilognathi were found to be highest in the later part of wet season. Prevalence of L. minuta increased with increasing size offish, but mean density was least in the largest fish. Both prevalence and mean density of B. acheilognathi were highest in smaller fish, whereas that of Dactylogyrus sp. showed little variation in the three size–groups.

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