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Temporal variations in the infection of a population of Cerithidea cingulata by larval trematodes in Kuwait Bay

Published online by Cambridge University Press:  12 April 2024

W.Y. Al-Kandari ,
J. Abdul-Salam  and
R. Meakins
W.Y. Al-Kandari
Affiliation:
Department of Biological Sciences, Kuwait University, PO Box 5969, Safat 13060, Kuwait
J. Abdul-Salam*
Affiliation:
Department of Biological Sciences, Kuwait University, PO Box 5969, Safat 13060, Kuwait
R. Meakins
Affiliation:
Department of Biological Sciences, Kuwait University, PO Box 5969, Safat 13060, Kuwait
*
*Author for correspondence. Fax: 2403912 E-mail: jsalam@kuc01.kuniv.edu.kw
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Abstract

The prosobranch gastropod Cerithidea cingulata (Gastropoda: Potamididae) in Kuwait Bay was examined for larval trematode infections over a 17-month period. A total of 2537 snails were examined and 1265 (49.9%) found to be infected with one or more species of trematodes. The component community in the snail comprised 12 species representing the families Cyathocotylidae (2), Echinostomatidae (2), Haplosplanchnidae (1), Heterophyidae (2), Microphallidae (1), Philophthalmidae (2), Plagiorchiidae (1) and Schistosomatidae (1). Cyathocotylid II (41.6%) was by far the most prevalent species followed by the microphallid (3.9%), the two species comprised 90% of the total trematode fauna. The prevalence of infection increased with shell size and was significantly higher in male (47%) than female (33%) snails. Multiple infections were observed in only 15 (1.2%) of the infected snails; cyathocotylid I and cyathocotylid II combination occurred 14 times and heterophyid I and the microphallid occurred once. Trematode species were more diverse and prevalent in winter, and cercarial shedding peaked in summer. Behaviour of the definitive host and snail population dynamics were probably the major contributors to the detected temporal pattern in the infections.

Type
Research Article
Information
Journal of Helminthology , Volume 74 , Issue 1 , March 2000 , pp. 17 - 22
Copyright
Copyright © Cambridge University Press 2000

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