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

Cu in liver S £■ Pb in muscle 56 char trout pike whitefish grayling Ni in kidneys г£• char trout pike whitefish grayling Hg in muscle s &• 1,8 1,6 1,4 1,2 1,0 0,8 0,6 0,4 0,2 Л . \ JL, Ф M j T -F i char trout pike whitefish grayling 3.5. LAKE SUOVASELKAJARVI Lake Suovaselkajarvi (watershed of the River Paz) is located 86.2 km to the south-west of the town of Nickel and 13.2 km to the north-east of the settle­ ment of in Finland. It is a small (area of the lake 43.51 ha), shallow-water (maxi­ mum depth 2.7 m) lake, with an elon­ gated, oval shape, and of glacial origin. The maximum length is 1.12 km and maximum width 0.62 km. The point of maximum depth is located in the central part of the lake. According to the landscape type the wat shores are high, and covered by shrubs and Physico-geographical characteristics Watershed River Paz Latitude 68°57.176' Longitude 28°27.514' Height above sea level, m 168.0 Maximum length, km 1.12 Maximum width, km 0.62 Maximum depth, m 2.7 Area, hectares 43.512 Watershed area, km 2 5.098 Study period 1987-2006 ershed area belongs to forest zone. The lake pine forests. 3.5.1. Hydrochemistry The water of the lake is neutral with a low mean total mineralization (24.6 mg/l) and a low mean alkalinity (230 fieq/1). During flood periods the pH of the water drops, but acidification does not develop due to the buffering capacity of the water. The lake has low concentrations of base cations and anions, with calcium (average 3.8 mg/l) and bicarbonate (average 14.1 mg/l) predominating. Fig. 74. Accumulation ofCu (liver), Ni (kidneys), Pb and Hg (muscle) in fish from Lake Meiialompolo (цд/д dry weight). Catalogue of Lakes in the Russian, Finnish and Norwegian Border Area 129