Observations on the Internal Helminth Parasite Fauna of Largemouth Bass, Micropterus salmoides, from Smithville Reservoir, Missouri
2000
ABSTRACT A survey of the helminth fauna of largemouth bass (Micropterus salmoides) was conducted to examine helminth biodiversity and community structure in a northwestern Missouri reservoir. Twenty bass were collected from Smithville Reservoir in May and again in September of 1996 and necropsied in search of helminth parasites. Seven species of helminths were recovered: Proteocephalus ambloplitis, Spinitectus sp., Contracaecum sp., Camallanus sp., Posthodiplostomum minimum, Crepidostomum sp., and Neoechinorhynchus cylindratus. The acanthocephalan, N. cylindratus, was the most prevalent parasite in fish sampled in May with 95% of the fish infected with this species. The plerocercoid of P. ambloplitis was the most prevalent parasite in fish sampled in September, again with 95% of the fish infected. For both of these species, the high prevalence in one month was significantly different from its prevalence in the other month. When any of the seven parasite species was significantly more prevalent in a given ...
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