Hostname: page-component-7479d7b7d-t6hkb Total loading time: 0 Render date: 2024-07-09T02:20:50.501Z Has data issue: false hasContentIssue false
  • English
  • Français

The seasonal occurrance of Trilocularia acanthiaevulgaris (Cestoda: Tetraphyllidea) from spiny dogfish in the Irish Sea

Published online by Cambridge University Press:  06 April 2009

J. S. McCullough ,
I. Fairweather  and
W. I. Montgomery
J. S. McCullough
Affiliation:
Department of Zoology, The Queen's University, Belfast BT7 1NN
I. Fairweather*
Affiliation:
Department of Zoology, The Queen's University, Belfast BT7 1NN
W. I. Montgomery
Affiliation:
Department of Zoology, The Queen's University, Belfast BT7 1NN
*
Reprint requests to Dr I. Fairweather.
Get access Rights & Permissions [Opens in a new window]

Summary

Trilocularia acanthiaevulgaris occurs in the stomach and spiral valve of the spiny dogfish. Statistical analyses show that the stomach and spiral valve worms of male fish and the stomach worms of female fish exhibit seasonal trends in prevalence and mean worm burden, with peaks occurring in May, June and July of each year. Spiral valve worms of female fish do not show this trend. Calculation of the product-moment correlation coefficient shows that the peak in the number of stomach worms occurs approximately 1 month before that of spiral valve worms in male fish. Strobilization of the adult spiral valve worms and development of the resulting free proglottides is also seasonal, and takes place in June/July in both sexes. Seasonal trends in prevalence, mean worm burden and maturation of T. acanthiaevulgaris may be related to water temperature, and the cyclical changes in levels of reproductive hormones and thyroid activity associated with migration and mating of spiny dogfish. It is suggested that the availability of infected intermediate hosts and diet of the dogfish may also be important in explaining the seasonality of infection.

Type
Research Article
Information
Parasitology , Volume 93 , Issue 1 , August 1986 , pp. 153 - 162
Copyright
Copyright © Cambridge University Press 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aasen, C. (1962). Norwegian dogfish tagging. Conseil permanent international pour l'exploration de la mer. Annales biologiques 17, 106–7.Google Scholar
Chubb, J. C. (1963). Seasonal occurrence and maturation of Triaenophorus nodulosus (Pallas, 1781) (Cestoda: Pseudophyllidea) in the pike Esox lucius L. of Llyn Tegid. Parasitology 53, 419–33.CrossRefGoogle Scholar
Dobson, S. & Dodd, J. M. (1977). The roles of temperature and photoperiod in the response of the testis of the dogfish Scyliorhinus canicula L. to partial hypophysectomy (ventral lobectomy). General and Comparative Endocrinology 32, 114–15.CrossRefGoogle ScholarPubMed
Euzet, L. (1952). Sur Trilocularia acanthiaevulgaris (Olsson, 1867) Cestoda, Tetraphyllidea. Bulletin de l'Institut Océanographique Monaco 1010, 1–6.Google Scholar
Ford, E. (1921). A contribution to our knowledge of the life histories of the dogfishes landed at Plymouth. Journal of the Marine Biology Association, U.K. 12, 468–505.CrossRefGoogle Scholar
Gabriel, K. R. (1978). A simple method of multiple comparisons of means. Journal of the American Statistics Association 73, 729–39.CrossRefGoogle Scholar
Hopkins, C. A. (1959). Seasonal variations in the incidence and development of the cestode Proteocephalus filicollis (Rud. 1810) in Gasterosteus aculeatus (L. 1766). Parasitology 49, 529–42.CrossRefGoogle ScholarPubMed
Jensen, A. C. (1966). Life history of the spiny dogfish. U.S. Fisheries and Wildlife Service, Fisheries Bulletin 65, 527–54.Google Scholar
Kennedy, C. R. (1975). Ecological Animal Parasitology. Oxford: Blackwell Scientific Publications.Google Scholar
Manger, B. R. (1972). Some cestode parasites of the elasmobranchs Raja batis and Squalus acanthias from Iceland. Bulletin of the British Museum (Natural History), Zoology 24, 161–81.Google Scholar
McCullough, J. S. (1984). Studies on the ecology, histochemistry and ultrastructure of Trilocularia acanthiaevulgaris (Cestoda: Tetraphyllidea) from the spiny dogfish. Ph.D. thesis, The Queen's University, Belfast.Google Scholar
McCullough, J. S. & Fairweather, I. (1983). A SEM study of the cestodes Trilocularia acanthiaevulgaris, Phyllobothrium squali and Gilquinia squali from the spiny dogfish. Zeitschrift für Parasitenkunde 69, 655–65.CrossRefGoogle Scholar
McCullough, J. S. & Fairweather, I. (1984 a). A comparative study of Trilocularia acanthiaevulgaris Olsson 1867 (Cestoda: Tetraphyllidea) from the stomach and spiral valve of the spiny dogfish. Zeitschrift für Parasitenkunde 70, 797–807.CrossRefGoogle Scholar
McCullough, J. S. & Fairweather, I. (1984 b). Growth and development of free proglottides of Trilocularia acanthiaevulgaris (Cestoda: Tetraphyllidea). Parasitology 89, 67.Google Scholar
Olsson, P. (1867). Entozoa iakttagna hos skandinaviska hafsfiskar. I. Platyhelminthes. Lunds universitets årsskrift, Afd. Math. o Naturv.-Vetensk 3, 1–59.Google Scholar
Orlowska, K. (1979). Parasites of North Sea spiny dogfish Squalus acanthias (Selachiiformes, Squalidae). Acta Ichthyologica et Piscatoria 9, 33–44.CrossRefGoogle Scholar
Pintner, T. (1896). Studien über Tetrarhynchen nebst Beobachtungen an anderen Bandwurmen. II. Mitteilung. Sitzungsberichte der Akademie der Wissenschaften in Wien Abteil. L (Math-Naturwiss. Klasse) 105, 652–82.Google Scholar
Rae, B. B. (1967). The food of the dogfish, Squalus acanthias L. Marine Research Series, Scottish Home Department 4, 1–19.Google Scholar
Sokal, R. R. & Rohlf, F. J. (1981). Biometry: The Principles and Practice of Statistics in Biological Research. 2nd Edn. San Francisco: W. H. Freeman.Google Scholar
Sumpter, J. P. & Dodd, J. M. (1979). The annual reproductive cycle of the female lesser spotted dogfish Scyliorhinus canicula L. and its endocrine control. Journal of Fish Biology 15, 687–95.CrossRefGoogle Scholar
Tait, R. V. (1972). Elements of Marine Ecology. 2nd Edn. London: Butterworths.CrossRefGoogle Scholar
Wardle, R. A. (1932). The Cestoda of Canadian fishes. I. The Pacific coast region. Contributions to Canadian Biology and Fisheries 7, 221–43.CrossRefGoogle Scholar
Winer, B. J. (1976). Statistical Principles in Experimental Design. 2nd Edn. New York: McGraw-Hill.Google Scholar
Woodhead, A. D. (1964). Variations in thyroid activity in relation to the reproduction and migration of Squalus acanthias, an ovo-viviparous selachian. In Second European Meeting on Comparative Endocrinology, Brussels, Belgium. Annals of Endocrinology 25, 142–7.Google Scholar