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Host skin mucus as a hatching stimulant in Acanthocotyle lobianchi, a monogenean from the skin of Raja spp.

Published online by Cambridge University Press:  06 April 2009

Sheila MacDonald
Sheila MacDonald
Affiliation:
School of Biological Sciences, University of East Anglia, Norwich, NOR 88C, U.K.
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Extract

When incubated at 13°C in alternating 12 h periods of light and darkness eggs of Acanthocotyle lobianchi rarely hatch. Hatching was not induced by shadowing or by mechanical disturbance. When skin mucus from the host ray was added to eggs which were more than 15 days old, hatching occurred almost immediately in about 60% of all eggs tested. Susceptibility to host mucus increased with the age of the eggs so that after 26–30 days of incubation over 80% of the eggs tested hatched. Some oncomiracidia were found to remain alive for up to 83 days in the egg, although they appeared to be fully developed at 15 days. Lipid droplets in the body of the 15-day-old oncomiracidia gradually disappeared as the eggs aged and it is suggested that these droplets serve as a food store for resting larvae.

Type
Research Article
Information
Parasitology , Volume 68 , Issue 3 , June 1974 , pp. 331 - 338
Copyright
Copyright © Cambridge University Press 1974

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References

REFERENCES

Bovet, J., (1959). Observations sur l'oeuf et l'oncomiracidium de Diplozoon paradoxum von Nordmann, 1832. Bulletin de la Société Neuchâteloise des Sciences naturelles 82, 231–45.Google Scholar
Bovet, J., (1967). Contribution à la morphologic et à la biologie de Diplozoon paradoxum von Nordmann, 1832. Bulletin de la Société Neuchâteloise des Sciences naturelles 90, 64–159.Google Scholar
Euzet, L., & Raibaut, A., (1960). Le développment postlarvaire de Squalonchocotyle torpedinis (Price, 1942) (Monogenea, Hexabothriidae). Bulletin de la Société Neuchâteloise des Sciences naturelles 83, 101–8.Google Scholar
Euzet, L., & Marc, A., (1963). Microcotyle donavini van Beneden et Hesse 1863, espèce type du Genre Microcotyle van Beneden et Hesse, 1863. Annales de Parasitologie humaine et comparée 38, 875–85.CrossRefGoogle Scholar
Kearn, G. C., (1963). The egg, oncomiracidium and larval development of Entobdella soleae, a monogenean skin parasite of the common sole. Parasitology 53, 435–47.CrossRefGoogle Scholar
Kearn, G. C., (1967). The life-cycles and larval development of some acanthocotylids (Monogenea) from Plymouth rays. Parasitology 57, 157–67.CrossRefGoogle Scholar
Kearn, G. C., (1970). The larvae of the monocotylid monogeneans Dictyocotyle coeliaca and Galicotyle kroyeri. Parasitology 61, 153–60.CrossRefGoogle Scholar
Kearn, G. C., (1973). An endogenous circadian hatching rhythm in the monogenean skin parasite Entobdella soleae and its relationship to the activity rhythm of the host (Solea solea). Parasitology 66, 101–22.CrossRefGoogle Scholar
Kearn, G. C., (1974). The effects of fish skin mucus on hatching in the monogenean parasite Entobdella soleae from the skin of the common sole (Solea solea). Parasitology 68, 173–88.CrossRefGoogle ScholarPubMed
Kearn, G. C., & Baker, N. O., (1973). Ultrastructure and histochemical observations on the pigmented eyes of the oncomiracidium of Entobdella soleae, a monogenean skin parasite of the common sole, Solea solea. Zeitschrift für Parasitenkunde 41, 239–54.CrossRefGoogle ScholarPubMed
Ktari, M. H., (1969). Recherches sur l'anatomie et la biologie de Microcotyle salpae Parona et Perugia, 1890, parasite de Box salpa L. (Téléostéen). Annales de Parasitologie humaine et comparée 44, 425–39.CrossRefGoogle Scholar
Llewellyn, J., (1957). The larvae of some monogenetic trematode parasites of Plymouth fishes. Journal of the Marine Biological Association of the United Kingdom 36, 243–59.CrossRefGoogle Scholar
Lythgoe, J. & G., (1971). Fishes of the Sea, 320 pp. London: Blandford Press.Google Scholar
Molnár, K., (1971). Studies on Gill Parasitosis of the Grasscarp (Ctenopharyngodon idella) caused by Dactylogyrus lamellatus Achmerow, 1952. 1. Morphology and Biology of Dactylogyrus lamellatus. Acta Veterinaria Academiae Scientiarum Hungaricae 21(2–3), 267–89.Google Scholar
Pearse, A. G. E., (1968). Histochemistry: Theoretical and Applied. 1, 759 pp. London: J. & A. Churchill Ltd.Google Scholar
Wiskin, M., (1970). The oncomiracidium and post-onoomiracidial development of the hexabothriid monogenean Rajonchocotyle emarginata. Parasitology 60, 457–79.CrossRefGoogle Scholar