Hostname: page-component-76fb5796d-skm99 Total loading time: 0 Render date: 2024-04-29T06:57:21.263Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of water temperature on the ability of Diplostomum spathaceum miracidia to establish in lymnaeid snails

Published online by Cambridge University Press:  05 June 2009

G. D. B. Waadu  and
L. H. Chappell
G. D. B. Waadu
Affiliation:
Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB9 2TN, UK
L. H. Chappell*
Affiliation:
Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB9 2TN, UK
*
†Author to whom correspondence should be addressed.
Get access Rights & Permissions [Opens in a new window]

Abstract

The effects of water temperature on the ability of Diplostomum spathaceum miracida to infect and establish patent infections in Lymnaea peregra and L. stagnalis were investigated. Snails were infected over a range of temperatures (6–20°C) and kept thereafter at 20°C or were infected at 20°C and kept at either 14, 20, or 25°C. Infection success was determined after 8 weeks by either observing cercarial shedding or examining snail viscera for sporocysts. The establishment of miracidia declined at lower water temperatures despite maintenance for 8 weeks at 20°C while exposure of snails to miracidia at 20°C and maintenance at different temperatures had little apparent effect. Infection success under these conditions was related more to the numbers of miracidia to which the snails were exposed. However, under this latter experimental regime, the time taken for the infection to become patent clearly depended upon maintenance temperature.

Keywords

Diplostomum spathaceumLymnaeamiracidiawater temperatureinfectivityTrematoda
Type
Research Papers
Information
Journal of Helminthology , Volume 65 , Issue 3 , September 1991 , pp. 179 - 185
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

REFERENCES

Anderson, R. M., Mercer, J. O., Wilson, R. A. & Carter, N. P. (1982) Transmission of Schistosoma mansoni from man to snail: experimental studies of miracidial survival and infectivity in relation to larval age, water temperature, host size and host age. Parasitology, 85, 339–360.Google Scholar
Awi, G. D. B. (1986) The pathogenesis of Diplostomum spathaceum (Rudolphi, 1810) in freshwater molluscs. PhD Thesis, University of Aberdeen.Google Scholar
Chappell, L. H. (1990) Don't turn a blind eye to this threat. Fish Farmer, 13, 47–48.Google Scholar
Chappell, L. H. & Coles, G. C. (1973) The effect of cooling on the infectivity of Schistosoma mansoni cercariae. Transactions of the Royal Society of Tropical Medicine and Hygiene, 67, 142.CrossRefGoogle ScholarPubMed
Chernogorenko, M. I. (1982) Periodicity, diurnal rhythm and ecologic factors influencing the rate of issuance of cercariae from mollusk hosts. Hydrobiologia Journale, 18, 64–72.Google Scholar
Christensen, N. O. & Nansen, P. (1976) The influence of temperature on the infectivity of Fasciola hepatica miracidia to Lymnaea truncatula. Journal of Parasitology, 62, 689–701.Google Scholar
Chu, K. Y., Massoud, J. & Sabbaghian, H. (1966a) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 3. Effect of water temperature on the ability of the miracidia to infect snails. Bulletin of the World Health Organization, 34, 131–133.Google ScholarPubMed
Chu, K. Y., Massoud, J. & Sabbaghian, H. (1966b) Host-parasite relationship of Bulinus truncatus and Schistosoma haematobium in Iran. 4. Effect of month of infection on cercarialincubation periods of Schisiosoma haematobium and Schisiosoma bovis. Bulletin of the World Health Organization, 34, 135–140.Google Scholar
Dewitt, W. B. (1955) Influence of temperature on penetration of snail hosts by Schistosoma mansoni miracidia. Experimental Parasitology, 4, 271–276.CrossRefGoogle ScholarPubMed
Frank, G. H. (1966) The effect of temperature on the rate of development and emergence of schistosome cercariae. Zoologica Africana, 2, 211–221.Google Scholar
Hoglund, J. (1990) Thermal effects on parasitic eyeflukes in fish—a case study. PhD thesis, University of Uppsala (Comprehensive summaries of Uppsala Dissertations from the Faculty of Science, No 296, 37 pp.)Google Scholar
Pitchford, R. J., Meyling, A. H., Meyling, J. & Du Toit, J. F. (1969) Cercarial shedding patterns of various schistosome species under outdoor conditions in the Transvaal. Annals of Tropical Medicine and Parasitology, 63, 359–371.Google Scholar
Prah, S. K. & James, C. (1977) The influence of physical factors on the survival and infectivity of miracidia of Schistosoma mansoni and S. haematobium. 1. Effect of temperature and ultraviolet light. Journal of Helminthology, 51, 73–85.Google Scholar
Purnell, R. E. (1966) Host-parasite relationship in schistosomiasis. 1. The effect of temperature on the infection of Biomphalaria sudanica tanganyicensis with Schistosoma mansoni miracidia and of laboratory mice with Schistosoma mansoni cercariae. Annals of Tropical Medicine and Parasitology, 60, 90–93.CrossRefGoogle Scholar
Rees, G. (1946) A study of the effect of light, temperature and salinity on the emergence of Cercaria purpurae (Lebour) from Nucella lapillus. Parasitology, 38, 228–242.Google Scholar
Riley, E. M. & Chappell, L. H. (1991) Effect of infection with Diplostomum spathaceum on the internal defence system of Lymnaea stagnalis. Journal of Invertebrate Pathology, (in press).Google Scholar
Stables, J. N. & Chappell, L. H. (1986a) The epidemiology of diplostomiasis in farmed rainbow trout from north-east Scotland. Parasitology, 92, 699–710.Google Scholar
Stables, J. N. & Chappell, L. H. (1986b) Diplostomum spathaceum (Rud. 1819): effects of physical factors on the infection of rainbow trout (Salmo gairdneri) by cercariae. Parasitology, 93, 71–79.Google Scholar
Stirewalt, M. A. & Fregeau, W. A. (1965) Effect of selected experimental conditions on penetration and maturation of Schistosoma mansoni cercariae in mice. 1. Environmental. Experimental Parasitology, 17, 168–179.CrossRefGoogle Scholar
Ulmer, J. (1970) Notes on rearing snails in the laboratory. In Experiments and Techniques in Parasitology. (editors Mclnnis, A. J. & Voge, M.) W. H. Freeman, San Francisco.Google Scholar
Whyte, S. K., Chappell, L. H. & Secombes, C. J. (1988) In vitro transformation of Diplostomum spathaceum (Digenea) cercariae and short term maintenance of post-penetration larvae in vitro. Journal of Helminthology, 62, 293–302.Google Scholar