Ключевые слова: animal, aquatic, area, background, biodiversity, biology, bugs, butterfly, close, conservation, dead, dormancy, ecology, environment, ephemeral, evening, fauna, fish, fisherman, fishing, fly, food, freshwater, gerris lacustrine, gerris lacustris, heteroptera insects, insect, insects, lake, larva, nature, northern, outdoor, ptineer, river, scissor, sunny, swarm, swimming, voltage, water, water skater, water spider, wetland, wild, wildlife, wings,