Document Detail


Seasonal dynamics and distribution of the digenean Phyllodistomum pawlovskii (Trematoda: Gorgoderidae) in the bullhead catfish, Pseudobagrus fulvidraco, in a lake of China.
MedLine Citation:
PMID:  17089753     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Wen Xiang Li; Gui Tang Wang; Wei Jian Yao; P Nie
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of parasitology     Volume:  91     ISSN:  0022-3395     ISO Abbreviation:  J. Parasitol.     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2006-11-08     Completed Date:  2006-11-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803124     Medline TA:  J Parasitol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  850-3     Citation Subset:  IM    
Affiliation:
State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, PR China.
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MeSH Terms
Descriptor/Qualifier:
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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