Thirteen mountain lakes, originally fishless, at 1325 and 2150 m a.s.l., with the maximum depths ranging from two to 15 m, and areas of 0.3 to 4.5 ha, were monitored between 1991 and 2012 in the Triglav National Park (Slovenia, Central Europe). The lakes are located on limestone bedrock, with no surface inflow or outflow. They range from ultra-oligotrophic to hypertrophic. They were stocked with fish between late 1920s and 1996. The zooplankton samples were collected as composites from the bottom to the surface at the deepest point of the lake, for both qualitative and quantitative analyses. In situ physical parameters in the water column were measured, and the samples for chemical analyses were collected in parallel with the zooplankton sampling. Thirty-two species, including Copepoda, Cladocera, Rotifera and Ciliata, were recorded. They belonged to three ecological groups: (1) constitutive, (2) scout and (3) benthic species. In some of the lakes, the species composition remained stable over the study period, but in lakes stocked with fish, significant changes occurred, in both species composition and biomass. Large-bodied species of Copepoda and Cladocera were eliminated by fish allowing small-bodied planktonic species of Copepoda, Cladocera and Rotifera to dominate the community, along with benthic species, associated with algal mats. The lake, stocked with fish in the 1920s, was hit by two strong consecutive earthquakes, in 1998 and 2004, after which a significant change in species composition and biomass was recorded.

1991年至2012年之间，在特里格拉夫国家公园（斯洛文尼亚，中欧）监测了13个原本没有鱼类的高山湖泊，原水分别为1325和2150 m，最大深度为2至15 m，面积为0.3至4.5公顷。 。湖泊位于石灰岩基岩上，没有表面流入或流出。它们的范围从超寡营养到肥大。他们在1920年代末至1996年之间放养了鱼类。浮游动物样本是从湖底到最深处从底部到表面的复合物，用于定性和定量分析。测量了水柱中的原位物理参数，并与浮游动物采样同时收集了用于化学分析的样品。记录了三十二种，包括pe足类，Cladocera，Rotifera和Ciliata。它们属于三个生态类别：（1）组成性，（2）侦察兵和（3）底栖物种。在某些湖泊中，物种组成在研究期内保持稳定，但在养有鱼的湖泊中，物种组成和生物量均发生了显着变化。鱼类消除了Co足类和角藻的大体物种，使Co足类，角藻和轮虫的小浮游物种以及与藻类相关的底栖生物占主导地位。该湖在1920年代盛产鱼类，在1998年和2004年连续两次遭受强烈地震袭击，之后记录了物种组成和生物量的显着变化。物种组成在研究期内保持稳定，但在养有鱼的湖泊中，物种组成和生物量均发生了显着变化。鱼类消除了Co足类和角藻的大体物种，使Co足类，角藻和轮虫的小浮游物种以及与藻类相关的底栖生物占主导地位。该湖在1920年代盛产鱼类，在1998年和2004年连续两次遭受强烈地震袭击，之后记录了物种组成和生物量的显着变化。物种组成在研究期内保持稳定，但在养有鱼的湖泊中，物种组成和生物量均发生了显着变化。鱼类消除了Co足类和角藻的大体物种，使Co足类，角藻和轮虫的小浮游物种以及与藻类相关的底栖生物占主导地位。该湖在1920年代盛产鱼类，在1998年和2004年连续两次遭受强烈地震袭击，之后记录了物种组成和生物量的显着变化。Cladocera和Rotifera以及与海藻垫相关的底栖生物占主导地位。该湖在1920年代盛产鱼类，在1998年和2004年连续两次遭受强烈地震袭击，之后记录了物种组成和生物量的显着变化。Cladocera和Rotifera以及与海藻垫相关的底栖生物占主导地位。该湖在1920年代盛产鱼类，在1998年和2004年连续两次遭受强烈地震袭击，之后记录了物种组成和生物量的显着变化。