abstract: In this study, the ecological and biological characteristics of the invasive goby Pomatoschistus bathi on coastal habitats of an area of the Crimean peninsula were investigated. Growth and lenght-weight relationships are characteristic for fish with short life cycles. The minor morphological differences of males from females were identified as a result of the morphometric study. Expansion of the areal and increasing the number of fish was observed in recent years. Large flocks of these fish are 
journal: Turkish Journal of Fisheries and Aquatic Sciences