| Seasonal dynamics and distribution of the digenean Phyllodistomum pawlovskii (Trematoda: Gorgoderidae) in the bullhead catfish, Pseudobagrus fulvidraco, in a lake of China. | |
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MedLine Citation:
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PMID: 17089753 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Seasonal population dynamics of the digenean Phyllodistomum pawlovskii in the urinary bladder of the bullhead catfish, Pseudobagrus fulvidraco, were investigated in Liangzi Lake in the flood plain of the Yangtze River in China from February 2001 to July 2002. The overall prevalence of the parasite was high, 41.5% (n = 1,476), while the mean abundance was relatively low, 1.24 +/- 2.11. The parasite exhibited evident seasonality in changes of prevalence and abundance. In brief, prevalence and abundance were very low in midwinter (January), but increased and remained relatively high in other seasons and months. The distribution pattern of this parasite in the fish was overdispersed, with a variance to mean ratio > 1, but its frequency distribution could not be described by the negative binomial model. There were positive correlations between the number of the parasites per fish and the age and length of the fish; a peaked age-parasite abundance curve was not detected in the parasite-host association. It is suggested that the parasite P. pawlovskii has little effect on the population structure of the bullhead catfish. |
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Authors:
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Wen Xiang Li; Gui Tang Wang; Wei Jian Yao; P Nie |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of parasitology Volume: 91 ISSN: 0022-3395 ISO Abbreviation: J. Parasitol. Publication Date: 2005 Aug |
Date Detail:
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Created Date: 2006-11-08 Completed Date: 2006-11-21 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7803124 Medline TA: J Parasitol Country: United States |
Other Details:
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Languages: eng Pagination: 850-3 Citation Subset: IM |
Affiliation:
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State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, PR China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Age Factors Animals Catfishes / parasitology* China / epidemiology Female Fish Diseases / epidemiology, parasitology* Fresh Water Male Models, Statistical Population Dynamics Seasons Trematoda / physiology* Trematode Infections / epidemiology, parasitology, veterinary* Urinary Bladder / parasitology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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