寄生于贫营养湖泊冰后期鱼类群落的两种棘头绦虫（绦虫纲）的集合种群结构

Metapopulation Structure of Two Species of Pikeworm (, Cestoda) Parasitizing the Postglacial Fish Community in an Oligotrophic Lake.

作者信息

Kashinskaya Elena N, Vlasenko Pavel G, Kolmogorova Tatyana V, Izotova Gelena V, Shokurova Anastasiya V, Romanenko Georgy A, Markevich Grigorii N, Andree Karl B, Solovyev Mikhail M

机构信息

Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok 152742, Yaroslavl Region, Russia.

Institute of Systematics and Ecology of Animals of Siberian Branch, Russian Academy of Sciences, Novosibirsk 630091, Russia.

出版信息

Animals (Basel). 2023 Oct 6;13(19):3122. doi: 10.3390/ani13193122.

In the present study, we estimated the levels of infestation of the main fish species that are hosts for two species: and . The prevalence of and infestations in the intestine of their definitive host-pike was similar (71.0% and 77.4%, respectively). At the same time, the prevalence of infestation in muscle tissue was significantly different between the second intermediate hosts, (31.4%) and (91.2%), due to considerable differences in their diets. For , we found significant variations in the levels of prevalence among the second intermediate hosts-100% for , 81.8% for 31.9% for , and 24.5% for -that we also explained using different diets. Moreover, analysis of the symmetry of parasite infestations did not reveal any asymmetry between the number of cysts in the left and right body surfaces of the "planktivorous" form/species of whitefish, whereas in the ''benthivorous", an asymmetry of parasite infestations was found.

在本研究中，我们估计了作为两种寄生虫宿主的主要鱼类的感染水平：[寄生虫名称1]和[寄生虫名称2]。它们的终末宿主梭子鱼肠道中[寄生虫名称1]和[寄生虫名称2]的感染率相似（分别为71.0%和77.4%）。同时，由于第二中间宿主[宿主名称1]（31.4%）和[宿主名称2]（91.2%）的饮食差异很大，肌肉组织中[寄生虫名称1]的感染率在两者之间存在显著差异。对于[寄生虫名称2]，我们发现第二中间宿主之间的感染率水平存在显著差异——[宿主名称3]为100%，[宿主名称4]为81.8%，[宿主名称5]为31.9%，[宿主名称6]为24.5%——我们也用不同的饮食来解释这一现象。此外，对寄生虫感染对称性的分析未发现白鱼“食浮游生物”形态/种类的左右体表囊肿数量之间存在任何不对称性，而在“食底栖生物”形态/种类中，发现了寄生虫感染的不对称性。