Ключевые слова: aggressive, animal, aquatic, biotope, bottom, centrarchidae, cold, colorful, deep, discovery, diversity, diving, ecosystem, eurasean, europe, eutrophic, fish, fresh, freshwater, gibbosus, gorgeous, ground, invasion, invasive, lake, leppomis, macro, nature, one, pattern, perch, perciformes, pond, pumpkinseed, richsee, river, scuba, sea, single, small, species, sunfish, swimming, swiss, switzerland, ttersee, underwater, vierwaldst, water, z, zugersee,