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

IF 1.3 3区生物学 Q4 PARASITOLOGY

Journal of Helminthology Pub Date : 2024-04-12 DOI:10.1017/s0022149x00700034

W.Y. Al-Kandari, J. Abdul-Salam, R. Meakins

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引用次数: 0

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.

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科威特湾 Cerithidea cingulata 群体受幼虫吸虫感染的时间变化

在为期 17 个月的时间里，对科威特海湾的原鳃腹足类 Cerithidea cingulata（腹足纲： Potamididae）进行了幼虫吸虫感染检查。共检查了 2537 只蜗牛，发现其中 1265 只（49.9%）感染了一种或多种吸虫。蜗牛体内的虫群包括 12 个物种，分别代表 Cyathocotylidae 科 (2)、Echinostomatidae 科 (2)、Haplosplanchnidae 科 (1)、Heterophyidae 科 (2)、Microphallidae 科 (1)、Philophthalmidae 科 (2)、Plagiorchiidae 科 (1) 和 Schistosomatidae 科 (1)。迄今为止，胞囊虫Ⅱ（41.6%）是最普遍的种类，其次是小球虫（3.9%），这两个种类占整个吸虫群的 90%。感染率随螺壳大小而增加，雄螺（47%）明显高于雌螺（33%）。仅在 15 只（1.2%）受感染的蜗牛中观察到多重感染；胞囊线虫 I 和胞囊线虫 II 共发生了 14 次，异体线虫 I 和小球线虫共发生了 1 次。冬季的吸虫种类更多，流行程度更高，夏季则是carcarial脱落的高峰期。最终宿主的行为和蜗牛种群的动态可能是造成所发现的感染时间模式的主要原因。

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来源期刊

Journal of Helminthology 生物-动物学

CiteScore

2.80

自引率

12.50%

发文量

127

审稿时长

3 months

期刊介绍： Journal of Helminthology publishes original papers and review articles on all aspects of pure and applied helminthology, particularly those helminth parasites of environmental health, medical or veterinary importance. Research papers on helminths in wildlife hosts, including plant and insect parasites, are also published along with taxonomic papers contributing to the systematics of a group. The journal will be of interest to academics and researchers involved in the fields of human and veterinary parasitology, public health, microbiology, ecology and biochemistry.