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The epidemiology of the metacercariae of Diplostomum baeri and D. spathaceum in perch (Perca fluviatilis) from the warm water effluent of a nuclear power station

Published online by Cambridge University Press:  05 June 2009

Johan Höglund  and
Jan Thulin
Johan Höglund
Affiliation:
Department of Zoology, Box 561, S–751 22 Uppsala, Sweden
Jan Thulin
Affiliation:
The National Environmental Protection Board, Marine Section, Box 584, S–740 71 Öregrund, Sweden.
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Abstract

Thermal effects on the dynamics of infection with metacercariae of Diplostomum baeri and D. spathaceum were monitored between May and September, in a year-class of perch Perca fluviatilis, in an artificial lake receiving warm water discharges from a nuclear power station and in an unheated reference site, for a two year period. In the heated area the prevalence of infection of the retinal form, D. baeri, was always 100%, whereas in the unheated site there was an increase from 93% in May to 100% in June 1986. The relative density of D. baeri was found to increase gradually during the first summer in both areas, although the accumulation rate of metacercariae was significantly increased in the heated area. In August of the first year the relative density of D. baeri peaked in the heated area, whereas it continued to increase in the unheated control. However, in September of the following year, the relative densities were at the same level in both thermal regimes. A concomitant decline in the degree of overdispersion of metacercariae within the host population was observed in the heated area as the population density of metacercariae decreased, whereas the index of dispersion remained at the same level throughout the study in the unheated area. However, it was not possible to sample perch in the unheated area between October 1986 and May 1987 and changes in the parasite population could have occurred during this period. The prevalence and relative density of D. spathaceum, the lens form, was on the contrary low, especially in the unheated site where it was recorded only occasionally. The infection of D. baeri exhibited a convex pattern in both thermal regimes, although the peak infection was noticed earlier in the heated area. Regulation of the parasite infrapopulation may have been achieved by the combined effects of a decreased transmission rate of cercariae with increasing age of the host, the mortality of metacercariae as a natural termination of the life span and to selective predation of heavily infected hosts. However, regardless of an increased accumulation rate of metacercariae in the heated area, the relative densities of D. baeri became equal in both thermal regimes at the end of the study. The mortality rate of metacercariae in the heated area was therefore presumably increased as compared with the unheated reference site.

Keywords

Diplostomum baeriDiplostomum spathaceumPerca fluviatilisinfection dynamicstemperatureecologyepidemiology
Type
Research Article
Information
Journal of Helminthology , Volume 64 , Issue 2 , June 1990 , pp. 139 - 150
Copyright
Copyright © Cambridge University Press 1990

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References

REFERENCES

Aho, J. M., Camp, J. W. & Esch, G. W. (1982) Long term studies on the population biology of Diplostomum scheuringi in a thermal altered reservoir. Journal of Parasitology, 68, 695–708.CrossRefGoogle Scholar
Anderson, R. M. (1976) Dynamic aspects of parasite population ecology. In: Ecological Aspects of Parasitology (editor, Kennedy, C. R.) pp. 432–462. Amsterdam: North Holland Publishing Company.Google Scholar
Anderson, R. M. (1978) The regulation of host population growth by parasitic species. Parasitology, 76, 119–157.CrossRefGoogle ScholarPubMed
Anderson, R. M. & Gordon, D. M. (1982) Processes influencing the distribution of parasite numbers within host populations with special emphasis on parasite-induced host mortalities. Parasitology, 85, 373–398.CrossRefGoogle ScholarPubMed
Anderson, R. M. & May, R. M. (1978) Regulation and stability of host-parasite population interaction. I. Regulatory processes. Journal of Animal Ecology, 47, 219–247.CrossRefGoogle Scholar
Andrews, C. (1979) Host specificity of parasite fauna of perch Perca fluviatilis L. from the British Isles, with special reference to a study at Llyn Tegid (Wales). Journal of Fish Biology, 15, 195–209.CrossRefGoogle Scholar
Brassard, P., Rau, M. E. & Curtis, M. A. (1982a) Infection dynamics of Diploslomum spathaceum cercariae and parasite-induced host mortality of fish hosts. Parasitology, 85, 489–493.CrossRefGoogle Scholar
Brassard, P., Rau, M. E. & Curtis, M. A. (1982b) Parasite-induced susceptibility to predation in diplostomiasis. Parasitology, 5, 495–501.CrossRefGoogle Scholar
Bortz, B. M., Kenny, G. E., Pauley, G. B. & Bunt-Milam, A. H. (1988) Prevalence of two site-specific populations of Diplostomum spp. in eye infections of rainbow trout, Salmo gairdneri Richardson, from lakes in Washington State, USA. Journal of Fish Biology, 33, 31–43.CrossRefGoogle Scholar
Camp, J. W., Aho, J. M. & Esch, G. W. (1982) A long-term study on various aspects of the population biology of Ornithodiplostomum ptychocheilus in a South Carolina Cooling Reservoir. Journal of Parasitology, 68, 709–718.CrossRefGoogle Scholar
Chubb, J. C. (1976) Seasonal occurrence of helminths in freshwater fishes. Part II. Trematoda. Advances in Parasitology, 17, 111–131.Google Scholar
Crowden, A. E. & Broom, D. M. (1980) Effects of the eyeflake, Diplostomum spathaceum, on the behaviour of dace, (Leuciscus leuciscus). Journal of Animal Behaviour, 28, 287–294.CrossRefGoogle Scholar
Crofton, H. D. (1971) A model of host-parasite relationships. Parasitology, 63, 343–364.CrossRefGoogle Scholar
Ellis, A. (1984) General fish immunology. In: Disease and health control of farmed fish (including shellfish and crustaceans) in Europe. pp. 178–188. Inst, of Aqaculture, University of Stirling.Google Scholar
Elliot, J. M. (1977) Some methods for the statistical analysis of samples of benthic invertebrates, pp. 1–157, Freshwater Biological Association Scientific Publication No. 25. 157 pp.Google Scholar
Eure, H. (1976) Seasonal abundance of Neoechinorhynchus cylindratus taken from largemouth bass (Micropterus salmonides) in a heated reservoir. Parasitology, 73, 355–370.CrossRefGoogle Scholar
Gordon, D. M. & Rau, M. E. (1982) Possible evidence for mortality induced by the parasite Apatemon gracilis in a population of brook sticklebacks (Culaea inconstans). Parasitology, 84, 41–47.CrossRefGoogle Scholar
Granath, W. O. & Esch, G. W. (1983a) Seasonal dynamics of Bothriocephalus acheilognathi in ambient and thermally altered areas of a North Carolina Cooling reservoir. Proceedings of the Helminthological Society of Washington, 50, 205–218.Google Scholar
Granath, W. O. & Esch, G. W. (1983b) Survivorship and parasite-induced host mortality among mosquitofish in a predator free. North Carolina cooling reservoir. American Midland Naturalist, 110, 314–326.CrossRefGoogle Scholar
Halvorsen, O. & Andersen, K. (1984) The ecological interaction betwen arctic char, Salvelinus alpinus (L.), and the plerocercoid stage of Diphyllobothrium ditremum. Journal of Fish Biology, 25, 305–316.CrossRefGoogle Scholar
Henricson, J. (1977) The abundance and distribution of Diphyllobothrium dendriticum (Nitzsch) and D. ditremum (Creplin) in char Salvelinus alpinus (L.) in Sweden. Journal of Fish Biology, 11, 231–248.CrossRefGoogle Scholar
Henricson, J. (1978) The dynamics of infection of Diphyllobothrium dendriticum (Nitzsch) and D. ditremum (Creplin) in char Salvelinus alpinus (L.) in Sweden. Journal of Fish Biology, 13, 51–71.CrossRefGoogle Scholar
Hoffman, G. L. & Hundley, J. B. (1957) The life-cycle of Diplostomum baeri eucalidae n. subsp. (Trematoda:Strigeida). Journal of Parasitology, 43, 613–627.CrossRefGoogle ScholarPubMed
Karås, P. (1987) Food consumption, growth and recruitment in perch (Perca fluviatilis L.) PhD Thesis, Acta Universitatis Upsaliensis, 108, Sweden.Google 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, 221–236.CrossRefGoogle Scholar
Kennedy, C. R. (1984) The use of frequency distributions in an attempt to detect host mortality induced by infections of diplostomatoid metacercariae. Parasitology, 89, 209–220.CrossRefGoogle Scholar
Kennedy, C. R. (1985) Interaction of fish parasite populations: to perpetuate or pioneer? In: Ecology and genetics of host parasite interactions (editors. Rollinson, D. & Anderson, R. M.) pp. 1–20. Linnean Society of London.Google Scholar
Kennedy, C. R. & Burrough, R. (1977) The population biology of two species of eyefluke, Diplostomum gasterostei and Tylodelphys clavata, in perch. Journal of Fish Biology, 11, 619–633.CrossRefGoogle Scholar
Lester, R. J. G. (1977) An estimate of the mortality in a population of Perca flavescens owing to the trematode Diplostomum adamsi. Canadian Journal of Zoology, 55, 288–292.CrossRefGoogle Scholar
Lester, R. J. G. (1984) A review of methods estimating mortality due to parasites in wild fish populations. Helgolander Meeresuntersuchungen, 37, 53–64.CrossRefGoogle Scholar
Lester, R. J. G. & Huizinga, H. W. (1977) Diplostomum adamsi sp. n.: description, life cycle, and pathogenesis in the retina of Perca flavcescens. Canadian Journal of Zoology, 55, 64–73.CrossRefGoogle Scholar
Madhavi, R. & Anderson, R. M. (1985) Variability in the susceptibility of the fish host, Poecilia reticulata, to infection with Gyrodactylus bullatarudis (Monogenea). Parasitology, 91, 531–544.CrossRefGoogle Scholar
May, R. M. & Anderson, R. M. (1978) Regulation and stability of host-parasite interactions II. Destabilizing processes. Journal of Animal Ecology, 47, 249–267.CrossRefGoogle Scholar
Margolis, L., Esch, G. W., Holmes, J. C., Kurtis, A. M. & Schad, G. A. (1982) The useof ecological terms in parasitology (report of an ad hoc Committee of the American Society of Parasitologists). Journal of Parasitology, 68, 31–133.CrossRefGoogle Scholar
Niewiadomska, K. (1988) Diplostomum metacercariae (Digenea) in fish of the Dgal Wielki and Warniak lakes: D. numericum sp. n. and D. baeri Dubois, 1937, with comments on the synonymy of this species. Acta Parasitologica Polonica, 33, 7–24.Google Scholar
Pennycuick, L. (1971a) Frequency distribution of parasites in a population of three-spined sticklebacks, Gasterosteus aculeatus L., with particular reference to the negative binomial distribution. Parasitology, 63, 389–406.CrossRefGoogle Scholar
Pennycuick, L. (1971b) Seasonal variations in the parasite infections in a population of three-spined sticklebacks Gasterosteus aculeatus L. Parasitology, 63, 373–388.CrossRefGoogle Scholar
Pojmanska, T. (1984a) An analysis of seasonality of incidence and maturation of some fish parasites, with regard to thermal factor II. Caryophyllaeus laticeps (Pallas, 1781). Acta Parasitologica Polonica, 29, 229–239.Google Scholar
Pojmanska, T. (1984b) An analysis of seasonality of incidence and maturation of some fish parasites, with regard to thermal factor III. Bunodera lucioperca (Müller 1776). Acta Parasitologica Polonica, 29, 313–321.Google Scholar
Pojmanska, T. (1984c) An analysis of seasonality of incidence and maturation of some fish parasites, with regard to thermal factor IV. Bucephalus polymorphus Baer 1827. Acta Parasitologica Polonica, 30, 25–34.Google Scholar
Pojmanska, T. (1984d) An analysis of seasonality of incidence and maturation of some fish parasites, with regard to thermal factor V. Digeneans of the genus Sphaerostomum, Rudolphi 1809. General conclusion. Acta Parasitologica Polonica, 30, 229–239.Google Scholar
Pojmanska, T., Grabda-Kazubska, B., Kazubski, S., Machalska, J. & Niewiadomska, K. (1980) Parasite fauna of five fish species from the Konin lakes complex, artificially heated with thermal effluents, and from Goplo lake. Acta Parasitologica Polonica, 27, 319–357.Google Scholar
Sandström, U. (1986) The occurrence of waterfowl in the biotest basin at the Forsmark nuclear power plant, Sweden, 1981–1984. National Swedish Environment Protection Board, 3128, 1–21.Google Scholar
Sankurathri, C. S. & Holmes, J. C. (1976) Effects of thermal effluents on parasites and commensals of Physa gyrina Say (Mollusca: Gastropoda) and their interaction at Lake Wabamun, Alberta. Canadian Journal of Zoology, 54, 1742–1753.CrossRefGoogle Scholar
SAS Institute Inc. (1985) SAS user's guide: basics version, 5th edSAS Institute Inc., Cary, North Carolina.Google Scholar
Shariff, M., Richards, R. H. & Sommerville, C. (1980) The histopathology of acute and chronic infections of rainbow trout, Salmo gairdneri Richardson, with eye flukes Diplostomum spp. Journal of Fish Diseases, 3, 455–465.CrossRefGoogle Scholar
Shigin, A. A. (1986) The trematode fauna of the USSR. The diplostomatoid metacercariae. (in Russian). pp. 1–253, Nauka, Moscow.Google Scholar
Stables, J. N. & Chappell, L. H. (1986) The epidemiology of diplostomiasis in farmed rainbow trout from north-east Scotland. Parasitology, 92, 699–710.CrossRefGoogle ScholarPubMed
Stables, J. N. & Chappell, L. H. (1986) Putative immune response of rainbow trout, Salmo gairdneri, Richardson to Diplostomum spathaceum infections. Journal of Fish Biology, 31, 197–208.Google Scholar
Stenbäck, H. (1979) Skillnader mellan en varmvattenpåverkad och en opåverkad havsvik med avseende på där levande snäckor. Statens Naturvårdverk, (in Swedish), pp. 1–28.Google Scholar
Thulin, J. (1984) Parasiter och sjukdomar hos fisk vid Oskarshamnsverket. SNV Mkk, Stencil, (in Swedish), pp. 1–8.Google Scholar
Whyte, S. K., Allan, C. J., Secombes, C. J. & Chappell, L. H. (1987) Cercariae and diplostomules of Diplostomum spathaceum (Digenea) elicit an immune response in rainbow trout, Salmo gairdneri, Richardson. Journal of Fish Biology, 31 (supplement A) 185–190.CrossRefGoogle Scholar
Wootten, R. (1974) Observations on strigeoid metacercariae in the eyes of fish from Hanningfield Reservoir, Essex, England. Journal of Helminthology, 48, 73–83.CrossRefGoogle Scholar