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The biology of Clavella uncinata (Muller) (Crustacea: Copepoda)

Published online by Cambridge University Press:  06 April 2009

R. A. Shotter
R. A. Shotter
Affiliation:
Marine Biological Station, Port Erin, Isle of Man*
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Extract

Clavella uncinata (Muller) (Crustacea: copepoda) was found infesting 24% of 1352 whiting Odontogadus merlangus (L.) examined from the North Irish sea.A study of the dimensions of the adult female and a comparison of the morphology of copepodid larvae from the Clavella of whiting and pollack Pollachius pollachius (L.) suggests that the Clavella from these gadoids are all one species. Observations on the process of feeding and histochemical analysis of the gut contents indicate that the parasites feed by browsing on the superficial tissues of the whiting and that the mouthparts are used more for the gathering of food towards the mouth than for cutting. Observations show that the hatching of eggs and the behaviour of the nauplii are remarkably similar to these functions in free-living copepods. Examination of Clavella from adult and young whiting, and from living specimens kept alive on the fish, suggests that there are definite cycles of development, that the eggs take about 21 days to mature and that adult Clavella has a life span of no more than 6 months.

I would like to thank the Masters and crews of the R.V. Cuma and R.V. Silver Spray and the staff of the Marine Biological Station, Port Erin for their help in the collection of material. I am especially grateful to Mr D. J. Slinn who guided me throughout this work and to Mr R. Moore for his technical assistance.

Type
Research Article
Information
Parasitology , Volume 63 , Issue 3 , December 1971 , pp. 419 - 430
Copyright
Copyright © Cambridge University Press 1971

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References

Bruce, J. R., Colman, J. S. & Jones, N. S. (eds). (1963). Marine Fauna of the Isle of Man and its Surrounding Seas, 307 pp. Liverpool: Liverpool University Press.Google Scholar
Friend, G. F. (1941). The life history and ecology of the salmon gill-maggot Salmonicola salmonea (L.) (copepod crustacean). Transactions of the Royal Society of Edinburgh 15, no. 2, 503–41.Google Scholar
Gibson, R. N. (1964). The use of the anaesthetic quinaldine in fish ecology. Journal of Animal Ecology 36, 296–301.Google Scholar
Gurney, R. (1934). The development of certain parasitic copepoda of the Fams. Caligidae and Clavellidae. Proceedings of the Zoological Society of London 105, no. 2, 177–217.CrossRefGoogle Scholar
Gurr, E. (1958). Methods of Analytical Histology and Histo-Chemistry, 327 pp. Leonard Hill.Google Scholar
Heegard, P. (1947). Contribution to the phylogeny of the arthropods. Copepoda. Spolia zoologica Musei hauniensis 8, 1–236.Google Scholar
Kabata, Z. (1960). Observations on Clavella (copepoda) parasitic on some British gadoids. Crustaceana 1, 342–52.CrossRefGoogle Scholar
Kabata, Z. (1963). Clavella (copepoda) parasitic on British gadidae: one species or several? Crustaceana 5, 64.CrossRefGoogle Scholar
Leigh-Sharpe, W. H. (1918). Clavella sciatherica n.sp., a parasitic copepod of Gadus morrhua. Parasitology 11, no. 1, 118–26.CrossRefGoogle Scholar
Leigh-Sharpe, W. H. (1920). Clavella iadda n.sp., a parasitic copepod of Gadus morrhua. Journal of the Marine Biological Association of the United Kingdom 12, 332–8.CrossRefGoogle Scholar
Leigh-Sharpe, W. H. (1925). A revision of the British species of Clavella (Crustacea, copepoda), with a diagnosis of new species; C. devastatrix and C. invicta. Parasitology 17, 194–200.CrossRefGoogle Scholar
Leigh-Sharpe, W. H. (1933). A second list of parasitic copepoda from Plymouth with a description of three new species. Parasitology 25, 113–18.CrossRefGoogle Scholar
Marshall, S. M. & Orr, A. P. (1954). Hatching in Calanus finmarchicus and some other copepods. Journal of the Marine Biological Association of the United Kingdom 33, 393–401.CrossRefGoogle Scholar
Nunes-Ruivo, L. (1957). Contribution à l'étude des variations morphologiques de Clavella adunca (H. Strøm), copepode parasiti de Gadus callarias. Considérations sur quelques Clavella parasites des Gadidae. Revista da Faculdade de ciencias Universidade de Lisboa. Series C, 5, no. 2, 229–56.Google Scholar
Poulsen, E. (1939). Investigations upon the parasite copepod Clavella uncinata (O. F. Muller) in Danish waters. Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i Kjøbenhavn 102, 223–44.Google Scholar
Scott, T. & Scott, A. (1912). British Parasitic Copepoda, volumes 1 and 2. London: Ray Society.Google Scholar
Shotter, R. A. (1970). Studies on the parasites of whiting, Odontogadus merlangus merlangus (L.) from the north Irish sea. Ph.D. Thesis, University of Liverpool.Google Scholar
Williamson, D. I. & Russell, G. (1965). Ethylene glycol as a preservative for marine organisms. Nature, London 206, no. 4991, 1370–71.CrossRefGoogle ScholarPubMed
Wilson, C. B. (1915). North American parasitic copepods belonging to the Lernaeopodidae, with a revision of the entire family. Proceedings of the United States National Museum 53, 1–150.CrossRefGoogle Scholar