Document Detail

Seasonality of recruitment and reproduction of Acanthocephalus tumescens (Acanthocephala) in fishes from Lake Moreno (Patagonia, Argentina).
MedLine Citation:
PMID:  17304804     Owner:  NLM     Status:  MEDLINE    
The seasonality of recruitment and reproduction of Acanthocephalus tumescens at the component population level was investigated in Lake Moreno (Patagonia, Argentina). Seasonal samples of the principal fish host species were taken between spring 1999 and spring 2000. Prevalence, mean intensity, coefficient of dispersion, sex ratio, proportion of maturity stages of females, and percentages of the 2 sources of infection in the stomach of fishes were calculated. Overall prevalence, mean intensity, and coefficient of dispersion showed the same pattern of seasonal changes. The seasonal feeding patterns of fishes affect the occurrence of A. tumescens, producing 1 peak in spring and the other peak in autumn. The lower temperature in winter delay reproductive processes after the autumn period of recruitment.
Carlos A Rauque; Liliana G Semenas; Gustavo P Viozzi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of parasitology     Volume:  92     ISSN:  0022-3395     ISO Abbreviation:  J. Parasitol.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2007-02-19     Completed Date:  2007-03-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7803124     Medline TA:  J Parasitol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1265-9     Citation Subset:  IM    
Laboratorio de Parasitología, Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, Quintral 1250, (8400) San Carlos de Bariloche, Rio Negro, Argentina.
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MeSH Terms
Acanthocephala / physiology*
Argentina / epidemiology
Fish Diseases / epidemiology*,  parasitology
Fresh Water
Helminthiasis, Animal / epidemiology*,  parasitology
Oncorhynchus mykiss / parasitology*
Osmeriformes / parasitology*
Perciformes / parasitology*
Sex Ratio

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