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Spatial distribution of the copepod parasite Lernanthropus kroyeri on the gills of bass, Dicentrarchus labrax (L.)

Published online by Cambridge University Press:  11 May 2009

J. T. Davey
J. T. Davey
Affiliation:
Natural Environment Research Council, Institute for Marine Environmental Research, The Hoe, Plymouth
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Extract

Young estuarine bass of the 1976 and 1977 year classes were examined for gill parasites between February 1978 and June 1979. 344 specimens of the copepod Lernanthropus kroyeri were recovered from 177 of 289 fish. The distribution of the copepods on the gills showed clear preferences for site of attachment. With 48 such sites delineated per fish, 143 of 183 female copepods favoured a single site – the internal face of the medial sector of the posterior hemibranch of the second gill arch. 57 of 161 male copepods chose attachment to the external face of the medial sector of the anterior hemibranch of the second gill arch. Only seven copepods in all were found attached at any of the twelve possible sites on the first gill arch, and none at all at the six possible sites on the posterior hemibranch of the fourth gill arch. Explanations for the observed distribution are discussed in terms of the strength of the branchial ventilation currents over the different gills coupled with observations on the special respiratory adaptations of these parasites.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 60 , Issue 4 , November 1980 , pp. 1061 - 1067
Copyright
Copyright © Marine Biological Association of the United Kingdom 1980

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References

REFERENCES

Fryer, G., 1966. Habitat selection and gregarious behaviour in parasitic crustaceans. Crustaceana, 10, 199–209.CrossRefGoogle Scholar
Hanek, G. & Fernando, C. H., 1978. Spatial distribution of gill parasites of Lepomis gibbosus (L.) and Ambloplites rupestris (Raf.). Canadian Journal of Zoology, 56, 1235–1240.CrossRefGoogle Scholar
Hughes, G. M. & Morgan, M., 1973. The structure of fish gills in relation to their respiratory function. Biological Reviews, 48, 419–475.CrossRefGoogle Scholar
Paling, J. E., 1968. A method of estimating the relative volumes of water flowing over the different gills of freshwater fish. Journal of Experimental Biology, 48, 533–544.CrossRefGoogle ScholarPubMed
Shields, R. J. & Tidd, W. M., 1974. Site selection on hosts by copepodids of Lerneae cyprinacea L. (Copepoda). Crmtaceana, 27, 226–230.Google Scholar
Suydam, E. L., 1971. The micro-ecology of three species of monogenetie trematodes of fishes from the Beaufort-Cape Hatteras area. Proceedings of the Helminthological Society of Washington, 38, 240–246.Google Scholar
van den Broek, W. L. F., 1979. Copepod ectoparasites of Merlangius merlangus and Platichthys flesus. Journal of Fish Biology, 14, 371–380.CrossRefGoogle Scholar
Wilson, C. B., 1922. North American parasitic copepods belonging to the family Dichelesthiidae. Proceedings of the United States National Museum, 60 (2400), 100 pp.CrossRefGoogle Scholar