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Diana Sarik Lea Tuvikene

Võrtsjärv Limnological Station of the Institute of Zoology and Botany at Estonian Agricultural University. Diana Sarik Lea Tuvikene. LAKE PSKOV. Map. Our activities. Scientific research Applied research Teaching: Chair of applied hydrobiology. LAKE VÕRTSJÄRV: general description.

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Diana Sarik Lea Tuvikene

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  1. Võrtsjärv Limnological Station of the Institute of Zoology and Botanyat Estonian Agricultural University Diana Sarik Lea Tuvikene

  2. LAKE PSKOV Map

  3. Our activities • Scientific research • Applied research • Teaching: Chair of applied hydrobiology

  4. LAKE VÕRTSJÄRV: general description • Area 270 km2 • Mean depth 2.8 m • Maximum depth 6 m • Catchment area 3374 km2 • (incl. lake area) • Water volume 0.75 km3 • Average water turnover rate: • 1 year • Ice cover 135 days a year • Status: eutrophiclake • Natura 2000 pSCI and SPA

  5. Main problems at Lake Võrtsjärv • Eutrophication • Big water level changes • Late winter oxygen deficiency • Decrease of fish production

  6. Water quality of Lake Võrtsjärv depends stronglyon the water level

  7. Lake Võrtsjärv at high (1999) and low (1996) water level

  8. What has been done already? • 50-year scientific database • The lake was turned from ruffe lake to pikeperch lake during 1960s • External nutrient load was decreased • Regular state monitoring since 1989 • Lake Võrtsjärv Agency was founded in 2000

  9. Our expectations on LAKEPROMO • To support all-round and sustainable development of Lake Võrtsjärv region • To use international experience and cooperation for better management of the lake • To find our data and experience to be useful for partners

  10. Thank you!

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