Abstract—Long-term observations (1968–2019) on the dynamics of infection by the cestode Eubothrium rugosum in the burbot (Lota lota) have been performed in the Rybinsk Reservoir on the Upper Volga. The results show that a significant and consistent decrease in the prevalence of infection has occurred in the mid-to-late 1990s and is related to global warming. Because of rise in water temperature, large zones of oxygen depletion in the bottom water layer have been formed in the reservoir, leading to mass mortality of the intermediate hosts of the cestode (ruffe and copepods). This has sharply reduced the probability of transmission of its larvae to the final host (burbot). The predicted further climate warming with abnormally hot summers may provide for further decrease in the prevalence of E. rugosum infection in the burbot.

中文翻译：

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雷宾斯克水库 Burbot 中 Eubothrium rugosum (Plathelminthes, Cestoda) 感染的全球变暖相关动态

摘要——在伏尔加河上游的雷宾斯克水库对江豚 (Lota lota) 中的绦虫 Eubothrium rugosum 的感染动态进行了长期观察 (1968-2019)。结果表明，感染率在 1990 年代中后期出现了显着且持续的下降，这与全球变暖有关。由于水温升高，水库底部水层形成大面积缺氧区，导致绦虫中间宿主（绦虫和桡足类）大量死亡。这大大降低了其幼虫传播给最终宿主（江豚）的可能性。预测的气候进一步变暖以及异常炎热的夏季可能会进一步降低江豚中 E. rugosum 感染的流行率。