Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-03T01:21:01.707Z Has data issue: false hasContentIssue false
  • English
  • Français

Behavioural responses of the cercariae of Cryptocotyle lingua (Digenea: Heterophyidae) to computer-controlled shadow sequences

Published online by Cambridge University Press:  06 April 2009

J. G. Rea  and
S. W. B. Irwin
J. G. Rea
Affiliation:
Department of Biological and Biomedical Sciences, University of Ulster at Jordanstown, Newtownabbey, Co. Antrim BT37 0QB, N. Ireland
S. W. B. Irwin
Affiliation:
Department of Biological and Biomedical Sciences, University of Ulster at Jordanstown, Newtownabbey, Co. Antrim BT37 0QB, N. Ireland
Get access Rights & Permissions [Opens in a new window]

Extract

The cercariae of Cryptocotyle lingua have a brief but active life during which they do not feed. In order to maximize the probability of infection they must respond to a variety of host-related stimuli yet conserve their finite energy reserves by minimizing unnecessary muscular activity. In laboratory experiments, simulated shadows representing the passage of a fish host were found to increase population activity levels. Evidence was also found for a relationship between shadow duration and the duration of subsequent bursts of swimming activity. Adaptation to continuous shadowing was recorded, its onset and magnitude being dependent on both the frequency and duration of shadows delivered. As cercariae aged they became less responsive to shadow stimuli, especially those of short duration.

Keywords

Cryptocotylecercariaebehaviourshadow responseage
Type
Research Article
Information
Parasitology , Volume 103 , Issue 3 , December 1991 , pp. 471 - 477
Copyright
Copyright © Cambridge University Press 1991

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

Asquith, L. (1982). PSD3; 1, 2 and 3 Way Analysis of Variance. Computer Services Department. University of Ulster at Jordanstown, Co. Antrim BT37 0QB, N. Ireland.Google Scholar
Cable, R. M. (1938). Studies of larval trematodes from Kentucky with a summary of known related species. American Midland Naturalist 19, 440–64.CrossRefGoogle Scholar
Chapman, H. D. (1973). The functional organization and fine structure of the tail musculature of the cercariae of Cryptocotyle lingua and Himasthla secunda. Parasitology 66, 487–97.CrossRefGoogle Scholar
Chapman, H. D. (1974). The behaviour of the cercaria of Cryptocotyle lingua. Zeitschrift für Parasitenkunde 44, 211–26.CrossRefGoogle ScholarPubMed
Chapman, H. D. & Wilson, R. A. (1973). The propulsion of the cercariae of Himasthla secunda (Nicoll) and Cryptocotyle lingua. Parasitology 67, 1–15.CrossRefGoogle ScholarPubMed
Dönges, J. (1964). Der Lebenszyklus von Posthodiplostomum cuticola (V. Nordmann (1832), Dubois 1936) (Trematoda, Diplostomatidae). Zeitschrift für Parasitenkunde 24, 169–248.CrossRefGoogle Scholar
Ellis, C. & Williams, I. C. (1973). The longevity of some species of helminth parasites in naturally acquired infections of the lesser black-backed gull Larus fuscus. 1. Britain. Journal of Helminthology 47, 329–88.CrossRefGoogle Scholar
Haas, W. (1969). Reizphysiologische Untersuchungen an Cercarien von Diplostomum spathaceum. Zeitschrift für vergleichende Physiologie 64, 254–87.CrossRefGoogle Scholar
Kennedy, D. (1963). Inhibition in visual systems. Scientific American 209, 122–30.CrossRefGoogle ScholarPubMed
Køie, M. (1977). Stereoscan studies of cercariae, metacercariae and adults of Cryptocotyle lingua (Creplin 1825) Fishoeder 1903 (Trematoda: Heterophyidae). Journal of Parasitology 63, 835–9.CrossRefGoogle ScholarPubMed
Linton, E. (1915). Tocotrema lingua (Creplin) The adult stage of a skin parasite of the cunner and other fishes of the Woods Hole region. Journal of Parasitology 1, 128–34.CrossRefGoogle Scholar
Meyerhof, E. & Rothschild, M. (1940). A prolific Trematode. Nature, London 146, 367–8.CrossRefGoogle Scholar
Miller, H. M. & Mahaffy, E. (1930). Reactions of Cercaria hamata to light and to mechanical stimuli. Biological Bulletin 59, 95–103.CrossRefGoogle Scholar
Miller, H. M. & McCoy, O. R. (1930). An experimental study of the behaviour of Cercaria floridensis in relation to its fish intermediate host. Journal of Parasitology 16, 185–97.CrossRefGoogle Scholar
Millott, N. (1968). The dermal light sense. Symposia of the Zoological Society of London 23, 1–36.Google Scholar
Rees, F. G. (1975 a). Studies on the pigmented and unpigmented photoreceptors of the cercaria of Cryptocotyle lingua (Creplin) from Littorina littorea (L.). Proceedings of the Royal Society of London, B 188, 121–38.Google ScholarPubMed
Rees, F. G. (1975 b). The arrangement and ultrastructure of the musculature, nerves and epidermis, in the tail of the cercaria of Cryptocotyle lingua (Creplin) from Littorina littorea (L.). Proceedings of the Royal Society of London, B 190, 165–86.Google Scholar
Rothschild, M. (1939). A note on the life cycle of Cryptocotyle lingua (Creplin, 1825) (Trematoda). Novitates Zoologicae 41, 178–80.Google Scholar
Sekhar, S. C. (1970). Infection of the Cunner, Tautogolabrus adspersus (Walbrum), with metacercariae of Cryptocotyle lingua (Creplin, 1825). Journal of Helminthology 44, 189–98.CrossRefGoogle Scholar
Steven, D. M. (1963). The dermal light sense. Biological Reviews 38, 204–40.CrossRefGoogle ScholarPubMed
Stunkard, H. W. (1930). The life cycle of Cryptocotyle lingua (Creplin) with notes on the physiology of the metacercaria. Journal of Morphology 50, 143–90.CrossRefGoogle Scholar
Van Den, Broek, W., L. F. (1979). Infection of estuarine fish populations by Cryptocotyle lingua (Creplin). Journal of Fish Biology 14, 395–402.CrossRefGoogle Scholar
Wheeler, N. C. (1939). A comparative study on the behaviour of four species of pleurolophocercous cercariae. Journal of Parasitology 25, 343–53.CrossRefGoogle Scholar
Willey, C. H. & Gross, P. K. (1957). Pigmentation in the foot of Littorina littorea as a means of recognition of infection with trematode larvae. Journal of Parasitology 43, 324–7.CrossRefGoogle ScholarPubMed