Catalogue of Lakes in the Russian, Finnish and Norwegian Border Area = [Каталог озер в приграничном районе России, Финляндии и Норвегии] / Nikolay A. Kashulin, Vladimir A. Dauvalter, Sergey S. Sandimirov etc. - Apatity : Institute of the North Industrial Ecology Problems KSC RAS etc., 2008.

Cu in liver Ni in kidneys Fig. 18. Accumulation ofCu (liver), Ni (kidneys), Pb and Hg (muscle) in fish from Lake Kochejaur (цд/д dry weight). perch pike perch pike whitefish whitefish Pb in muscle s&■ perch pike whitefish Hg in muscle perch pike whitefish 1.17. LAKE VIRTUOVOSHJAUR Lake Virtuovoshjaur (watershed of the River Puldshkash - tributary of theRriver Nautsijoki) is located 2.5 km from the Russian-Finnish border, 91 km to the south west of the town ofNikel, and 35 km to the north of the “Lotta”border crossing point. It is a small (area of the lake 1.25 km2), shallow-water (average depth 2-5 m, maximum depth 13 m), complex-shaped lake, close to oval with an indented coastline, and of gla cial origin. The maximum length is 1.8 km, and maximum width 1 km. The points of maximum depth (13 m) are located in the northern and southern parts of the lake. In the centre of the lake the maximum depth is shallow - up to 2.5 m. A lake bay, which adjoins the lake through a stony channel in the southern part, has shallow water with a depth of 1-2 m and a length of 1.2 km. The lake belongs to the lake-river system of the River Puldshkash, which originates in the south in Russia and then flows through a system of five lakes into Finland, and then flows back into Lake Puldshekjarvi in Russia. Lake Virtuovoshjaur is linked to Lake Puldshekjarvi by a small stream, which flows out of its northern border. Accord ing to the landscape type, the watershed consists of a combination of flat, low-lying depressions of glaciolacustrine flatland, and denudation and denudation-tectonic mas sifs with abrupt outcrops of quaternary deposits with a height up to 254 m and, in the south, up to 400.6 m (Konnostunturi fell).The lake shores are high, sometimes abrupt, and covered with pine forest. The south-eastern shores are waterlogged with intrusions 54 Catalogue o f Lakes in the Russian, Finnish and Norwegian BorderArea