Richness patterns in the parasite communities of exotic poeciliid fishes

Dove, Alistair Duncan Macgregor (2000) Richness patterns in the parasite communities of exotic poeciliid fishes. Parasitology, 120 6: 609-623. doi:10.1017/S0031182099005958

Author Dove, Alistair Duncan Macgregor
Title Richness patterns in the parasite communities of exotic poeciliid fishes
Journal name Parasitology   Check publisher's open access policy
ISSN 0031-1820
Publication date 2000-06
Sub-type Article (original research)
DOI 10.1017/S0031182099005958
Volume 120
Issue 6
Start page 609
End page 623
Total pages 15
Place of publication London, U.K.
Publisher Cambridge University Press
Collection year 2000
Language eng
Subject C1
270399 Microbiology not elsewhere classified
780105 Biological sciences
Formatted abstract
Three species of poeciliids (Gambusia holbrooki, Xiphophorus helleri and X. maculatus) and 15 species of ecologically similar native freshwater fishes (mainly eleotrids, ambassids, melanotaeniids and retropinnids) were examined for parasite richness to investigate parasite flux, qualitative differences, quantitative differences and the structuring factors in parasite communities in the 2 fish types in Queensland, Australia. Theory suggests that poeciliids would harbour depauperate parasite communities. Results supported this hypothesis; poeciliids harboured more species-poor parasite infracommunities and regional faunas than natives (P < 0·0001), despite greater sampling effort for the former. Cluster analysis of presence/absence data for poeciliids and the 6 most-sampled native fishes revealed that parasite communities of the 2 fish groups are qualitatively distinct; the proportion of parasite species with complex life-cycles was lower in poeciliids than in native species, and Myxosporea, Microspora, Coccidia and parasitic Crustacea were all absent from poeciliids. Limited exchange of parasite species has occurred between natives and poeciliids. Logistic ordinal regression analysis revealed that fish origin (exotic or native), environmental disturbance and host sex were all significant determinants of parasite community richness (P < 0·05). Theoretical modelling suggests that poeciliids are at a competitive advantage over native fishes because of their lack of parasites.
© 2000 Cambridge University Press
Keyword Parasitology
Parasite Communities
Exotic Fish
Native Fish
Fresh-water Fishes
Salmo-salar L
Atlantic Salmon
Norwegian Rivers
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 27 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 10 Jun 2008, 11:19:27 EST