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Interspecific interactions between Acanthocephalan species in the intestine of stone loach and minnow.

Authors
  • Bollache, L1, 2
  • 1 Laboratoire Chrono-environnement UMR CNRS 6249, Besançon, France. , (France)
  • 2 Université de Bourgogne Franche Comté, 21000 Dijon, France. , (France)
Type
Published Article
Journal
Journal of helminthology
Publication Date
Apr 11, 2019
Volume
94
Identifiers
DOI: 10.1017/S0022149X19000257
PMID: 30973123
Source
Medline
Language
English
License
Unknown

Abstract

Interspecific interactions between parasites sharing the same host are often antagonistic; the presence of one species decreases the number of individuals or negatively affects both the distribution and reproduction of the other species. Antagonistic interactions between co-infecting parasites may translate into direct competition or interactive segregation, but elements of both may be present. Potential interactions between two acanthocephalan species, Pomphorhynchus laevis and Acanthocephalus anguillae, were studied in the field in two of their natural fish definitive hosts. There was no evidence for competitive exclusion between P. laevis and A. anguillae. However, a negative interaction was found for the first time in the field between these two species. Based on the analysis of parasite abundance and total biomass using a static regression approach, I found that the abundance and total biomass of parasites was also limited by host characteristics. These results are consistent with previous laboratory studies on competition between P. laevis and A. anguillae.

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