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The dynamics of intestinal helminth communities in eels Anguilla anguilla in a small stream: long-term changes in richness and structure

Published online by Cambridge University Press:  06 April 2009

C. R. Kennedy
C. R. Kennedy
Affiliation:
Department of Biological Sciences, University of Exeter, Exeter EX4 4PS
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Summary

The prediction that species richness and diversity of intestinal helminth communities in eels would change over time in response to habitat changes was tested over a period of 13 years in a small stream subjected to extensive human management. Nearly all measures of helminth community structure adopted indicated a decline in richness and diversity over the first 6 years followed by a recovery over the last few years to levels unexpectedly close to those at the start of the investigation. Changes in total number of species suggested that the component community was far richer (from 3–9 species) at the end of the period. By contrast, changes in diversity and dominance measures revealed less variation than expected and suggested that there was an underlying stability of community structure characterized by high dominance by a single species, although the identity of this changed, low diversity and a large proportion of the eel population harbouring 0 or only 1 species. A similar pattern of changes was recorded in the infra-communities, where values of species richness and diversity were very similar at the commencement and termination of the study. It appeared that those helminths that colonized in the recovery period contributed to community richness but had little impact on community structure. The helminth communities clearly did change in response to habitat changes, and the evidence for a fixed number of niches and an underlying constancy in helminth community structure in eels is evaluated.

Keywords

helminth communityeelscommunity dynamicslong-term changesdiversity
Type
Research Article
Information
Parasitology , Volume 107 , Issue 1 , July 1993 , pp. 71 - 78
Copyright
Copyright © Cambridge University Press 1993

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References

REFERENCES

Aho, J. M., Bush, A. O. & Wolf, R. W. (1991). Helminth parasites of bowfin (Amia calva) from South Carolina. Journal of the Helminthological Society of Washington 58, 171–5.Google Scholar
Bush, A. O. (1990). Helminth communities in avian hosts: determinants of pattern. In Parasite Communities: Patterns and Processes (ed. Esch, G. W., Bush, A. O. & Aho, J.), pp. 197–232. London: Chapman & Hall.CrossRefGoogle Scholar
Bush, A. O. & Holmes, J. C. (1986). Intestinal helminths of lesser scaup ducks: an interactive community. Canadian Journal of Zoology 64, 142–52.Google Scholar
Bush, A. O., Aho, J. M. & Kennedy, C. R. (1990). Ecological versus phylogenetic determinants of helminth parasite community richness. Evolutionary Ecology 4, 1–20.CrossRefGoogle Scholar
Esch, G. W., Kennedy, C. R., Bush, A. O. & Aho, J. M. (1988). Patterns in helminth communities in freshwater fish in Great Britain: alternative strategies for colonization. Parasitology 96, 519–32.CrossRefGoogle ScholarPubMed
Esch, C. W., Hazen, T. C., Marcolgliese, D. J., Goater, T. M. & Crews, A. E. (1986). A long term study on the population biology of Crepidostomum cooperi (Trematoda: Allocreadidae) in the burrowing mayfly Hexagenia limbata (Ephemeroptera). American Midland Naturalist 116, 304–14.CrossRefGoogle Scholar
Goater, C. P. & Bush, A. O. (1988). Intestinal helminth communities in long-billed curlews: the importance of congeneric host-specialists. Holarctic Ecology 11, 140–5.Google Scholar
Holmes, J. C. (1990). Helminth communities in marine fishes. In Parasite Communities: Patterns and Processes (ed. Esch, G. W., Bush, A. O. & Aho, J.), pp. 101–130. London: Chapman & Hall.Google Scholar
Holmes, J. C. & Price, P. W. (1986). Communities of parasites. In Community Ecology: Patterns and Processes (ed. Kikkawa, J. & Anderson, D. J.), pp. 187–213. Oxford: Blackwell Scientific Publications.Google Scholar
Kennedy, C. B. (1978). The parasite fauna of resident char Salvelinus alpinus from Arctic Islands, with special reference to Bear Island. Journal of Fish Biology 13, 457–66.CrossRefGoogle Scholar
Kennedy, C. R. (1981). Long term studies on the population biology of two species of eyefluke Diplostomum gasterostei and Tylodelphys clavata (Digenea: Diplostomatidae), concurrently infecting the eyes of perch, Perca fluviatilis. Journal of Fish Biology 19, 221–36.CrossRefGoogle Scholar
Kennedy, C. R. (1984). The dynamics of a declining population of the acanthocephalan Acanthocephalus clavula in eels Anguilla anguilla in a small river. Journal of Fish Biology 25, 665–77.CrossRefGoogle Scholar
Kennedy, C. R. (1985). Interactions of fish and parasite populations: to perpetuate or pioneer? In Ecology and Genetics of Host–Parasite Interactions (ed. Rollinson, D. & Anderson, R. M.). Linnean Society Symposium Series 11, pp. 1–20. London: Academic Press.Google Scholar
Kennedy, C. R. (1990). Helminth communities in freshwater fish: structured communities or stochastic assemblages? In Parasite Communities: Patterns and Processes (ed. Esch, G. W., Bush, A. O. & Aho, J. M.). London: Chapman & Hall.Google Scholar
Kennedy, C. R. & Bakke, T. A. (1989). Diversity patterns in helminth communities in common gulls, Larus canus. Parasitology 98, 439–45.Google Scholar
Kennedy, C. R. & Rumpus, A. (1977). Long term changes in the size of the Pomphorhynchus laevis (Acanthocephala) population in the River Avon. Journal of Fish Biology 10, 35–42.CrossRefGoogle Scholar
Kennedy, C. R., Bush, A. O. & Aho, J. M. (1986). Patterns in helminth communities: why are birds and fish different? Parasitology 93, 205–15.CrossRefGoogle ScholarPubMed
Koskivaara, M. & Valtonen, E. T. (1992). Dactylogyrus (Monogenea) communities on the gills of roach in three lakes in Central Finland. Parasitology 104, 263–72.CrossRefGoogle Scholar
Likens, G. E. (1992). The Ecosystem Approach: Its Use and Abuse. Oldendorf/Luhe: Ecological Institute.Google Scholar
Magurran, A. E. (1988). Ecological Diversity and its Measurement. London: Croom Helm Ltd.CrossRefGoogle Scholar
May, R. M. (1973). Stability and Complexity in Model Ecosystems. Princeton: Princeton University Press.Google ScholarPubMed
May, R. M. (1975). Patterns of species abundance and diversity. In Ecology and Evolution of Communities (ed. Cody, M. L. & Diamond, J. M.), pp. 81–120. Cambridge MA, USA: Harvard University Press.Google Scholar
Nie, P. & Kennedy, C. R. (1991). Seasonal population dynamics of Paraquimperia tenerrima (Linstow) (Nematoda) in the European eel Anguilla anguilla (Linnaeus) in three localities of southwest England. Journal of Fish Biology 39, 441–9.Google Scholar
Smith, H. D. (1973). Observations on the cestode Eubothrium salvelini in juvenile sockeye salmon (Onchorhynchus nerka) at Babine Lake, British Columbia. Journal of the Fisheries Research Board of Canada 30, 947–64.Google Scholar
Sousa, W. P. (1990). Spatial scale and the processes structuring a guild of larval termatode parasites. In Parasite Communities: Patterns and Processes (ed. Esch, G. W., Bush, A. O. & Aho, J.), pp. 41–67. London: Chapman & Hall.CrossRefGoogle Scholar