The article discusses the developmental disorders observed in the embryos of an invasive species Gmelinoides fasciatus (Stebbing 1899) (CRUSTACEA: AMPHIPODA) inhabiting the Kizhi Island region of Lake Onego. It was already shown that the state of amphipod embryos may serve as an indicator for assessing the impact of pollutants on ecosystems. The results obtained in our study contribute to establishment of G. fasciatust as a new biomarker species that can be applied for the monitoring of water pollution.
Sidorova et al. (Wed,) studied this question.