Viešvilė Žuvitakis - Fish the way to the spawning grounds PLAY
Viešvilė River is the right tributary of the Nemunas. The river length of 22 km. Great part of the river (about 16 km) is Viešvilė State Nature Reserve and its buffer zone. It's been a valuable salmonid river, had abundant trout population, which is due to the pre-war built on the river ponds (Viešvilė - 4.5 hectares, 2.7 km from the mouth and Gulbinų - 6.7 hectares, 4.2 km from the mouth) with fish impassable dams almost completely disappeared because the fish could not reach above the ponds in the spawning grounds.
In view of the River Fishery value and potential of salmonid fish - trout and other migratory fish species (perch, river lamprey, brown trout) recovery capabilities Viešvilė river dams proposed to build a fish bypass. Fish ladder installation of dams on the river Viešvilė Viešvilė township. and Gulbinų. Jurbarkas. It was scheduled trout restocking and protection program, approved by the Minister of Agriculture and Minister of the Environment Order No. 2003-01-15. 3D-5/14 (Official Gazette., 2003, no. 9-317). The dam has also been included in the Minister of Environment and Minister of Agriculture Order No. 2003-01-16. 27 / 3D-13 on the definition of requirements for environmental protected and protected species migration routes "(Official Gazette., 2003, no. 19-835) approved by the dams to which facilities should be constructed fish migration list.
Under the Water Framework Directive (2000/60 / EC) is to be protected, improved and restored good surface water status in all water bodies. The river must be anthropogenically disturbed leak size and dynamics of the river Integrity, migration of aquatic organisms and sediment transport. Fish migration path restoration and implementation of key international commitments Lithuania - Convention on the Conservation of Migratory Species of Wild Animals (Official Gazette., 2001, no. 50-1742).
Nature Heritage Fund through the United Nations Development Programme and the Global Environment Facility project "Biodiversity conservation Lithuania swamps, has funded two fish passes the technical preparation of building projects and allocated funds for fish culverts Gulbinų pond dam on the river Viešvilė construction. Since the funds available were not sufficient Viešvilė fish ladder installed, Nature Heritage Fund together Jurbarkas weeks. It prepared an additional application for funds from the EU Structural Funds. Jurbarkas. weeks. 2007. He received support for the project, sea trout and other migratory fish migration path restoration Viešvilė river. Its implementation was built Viešvilė fish ladder, purchased equipment for fish scientific monitoring programs. Both fish passes the draft prepared by the design firm Gedilieta (project author Gediminas Lietuvininkas) and successfully implemented UAB Kavesta.
To construct fish passes well with the natural environment. Žuvitakis important not only to restore fish stocks. Since fish migration (spawning) and recreational seasons do not coincide, Viešvilė fish ladder can be used together. Equipped bathing water (synonymous with fish leisure pool) as well as bathers built a waterfall. Recreational conditions improve to provide access trails and green spaces. After the restoration of sea trout migration path to spawn in 10 years it is planned to reach 50% of the potential productivity of the river (500 pcs. Trout), about 250 adult fish. Regenerative Viešvilė fish stocks in the river will be able to organize an attractive trout fishing license, in the district will attract more tourists, promote the development of tourism. Therefore, fish passes will provide long-term social - economic benefits to the local community.
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