Sandimirov S.S. Catalogue of lakes in the Russian, Finnish and Norwegian Border Area. Finland, Jyvaskyla: Kopijyva Oy, 2008.

Cu in liver Ni in kidneys Fig. 24. Accumulation levels of Cu (liver), Ni (kidneys), Cd and Hg (muscle) in fish from Lake Virtuovoshjaur (цд/д dry weight). s£• perch pike whitefish perch pike whitefish Cd in muscle Hg in muscle s -a §O)3 I о perch pike whitefish 1.18. LAKE SHUONIJAUR Lake Shuonijaur (watershed of the River Shunijoki) is located at a distance of 20 km to the south of the town of Nikel. It is a rather large (area of the lake 11.3 km2), shallow-water (average depth 4-6 m, maximum depth 10 m), oval­ shaped lake, elongated in the east-west direction, and of glacial origin. The maximum length is 7.2 km and maxi­ mum width 2.8 km. The point of maxi­ mum depth is located in the central part of the lake. In the western and eastern parts of the lake the maximum depths are smaller - up to 5 m. According to the landscape type, the watershed area belongs to the tundra zone with heights up to 269.6 m (Uajvashvar fell). The northern shore is high and rocky, and the southern waterlogged and covered with shrubs and birch forest. The water of the lake is colourless but, during floods and high precipitation episodes, the colour increases to 30 deg. and becomes slightly yellowish. Physico-geographical characteristics Watershed River Shunijoki— Lake Kuetsjarvi— River Paz Latitude 69°15.449' Longitude 30°04.968' Height above sea level, m 180.1 Maximum length, km 7.2 Maximum width, km 2.8 Maximum depth, m 10 Area, m2 11.3 Watershed area, km2 285.8 Study period 1990-2007 60 Catalogue ofLakes in the Russian, Finnish and Norwegian BorderArea