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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-12 DOI:10.1017/s0022149x00700034

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

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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.

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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。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.