Merrasjärvi - Lahti, Finland
Posted by: 
marcius
N 61° 01.270 E 025° 40.778
35V E 428637 N 6765864
Lake Merrasjärvi is a shallow, humus-rich lake
Waymark Code: WM127M1
Location: Finland
Date Posted: 03/21/2020
Views: 15
Lake Merrasjärvi is a shallow, humus-rich lake that suffers from winter oxygen deprivation. For example, in 1975-76, the entire lake ran out of oxygen, resulting in the deaths of mass fish. Also in the winters of 1981 and 1982, oxygen was in danger of running out and only aeration saved the fish stock. The measure has had to be renewed in many winters. Phosphorus has also been precipitated in the lake with aluminum sulphate. The catchment area of the lake has been rehabilitated and the internal load has been reduced by removing aquatic vegetation and intensive roach fishing.
Lake Type: Other
Coordinates location: Merrasjärvi Beach
Max. Length: 900 m (0.56 Miles)
Max. Width: 350 m (0.21 Miles)
Max. Depth: 2.5 m (8,2 feet)
Surface area: 0,26km²
Parking / trail head: N 61° 01.295 W 025° 40.790
Website: [Web Link]
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