They are important part of food chain, because they are food for many types of animals living in the waters of Sĺňava, or on the shores, in the air. They are eaten by fishes, spiders and birds. Some of them are parasitic – for example mosquitoes (Bittacus tipularius) – they are very dangerous and not pleasant for people, their larvae are rapacious. From mosquitoes we can find also Culex pipiens (females feed with blood, males suck nectar from flowers) and Anofeles maculipennis (known for spreading malaria). Very common are flies (Tabanus bovines, Haematopota pluvialis, Eristalomyia tenax), they feed with blood and nectars from flowers. Near the water surface, but also far from the water basin we can see insects like dragonflies. Interesting insect is Hydrometra stagnorum, which lives on the surface of water and feeds with smaller insects. From the fish occur carp (Cyprinus carpio), pikes, eels, common huchen and others. The plant-eating fishes were given artificially into the waters of the Sĺňava to regulate the amount of water plants in the water-basin, because in the summer they were overgrowing the slopes of the basin. On the bottom of river Váh and Sĺňava live crayfish, which are protected (Astacus fluviatilis). But not only fishes, birds, microorganisms and insects live near and in the waters of Sĺňava. Also mammals occur here, although in smaller amounts than the other animals. Protected is Ondatra zibethicus and on the shores lives in larger amounts Arvicola terrestris. 4.6 Ecosystem of the water basin

The ecosystem of Sĺňava belongs into the ecosystems of freshwater. Generally: The conditions of water environment

Physical and chemical characteristics of water environment are


4.7 Energy flow in the ecosystem

4.8 Anthropogenic activities and their influence at nature of Slnava

4.9 Glossary

V. Discussion
VI. Summary
6.1 Summary
6.2 Bibliography.