Ключевые слова: aggressive, animal, anthropophagy, aquatic, big, biotope, cannibalism, cold, deep, discovery, diversity, diving, ecosystem, edible, esocidae, esox, eurasean, europe, eutrophic, fish, fishery, fishing, food, fresh, freshwater, green, ground, lake, lucius, nature, northern, pattern, pike, pond, predator, predatory, richsee, river, scuba, sea, species, striped, swiss, switzerland, ttersee, underwater, vierwaldst, water, z, zugersee,