Seroosikalvon

Seroosikalvon is a freshwater lake located in the northern region of Nordmark, a fictional Nordic country. It lies within the Kaerri municipality and is part of the Lume River catchment. The lake covers about 4.2 square kilometers, has a maximum depth of around 38 meters, and a shoreline roughly 12 kilometers long. It is fed by three small streams originating in surrounding hills and is drained by the Lången River, which flows toward the gulf region. The water is typically oligotrophic, resulting in high visibility and cold temperatures for much of the year.

The shoreline is lined with mixed boreal forest, including spruce and pine, with peat bogs and sedge meadows in the northern sector. The surrounding landscape supports a diverse set of habitats that contribute to the lake’s ecological character. Common fish species in Seroosikalvon include brown trout, northern pike, and perch, while waterfowl such as divers and grebes may be observed seasonally. Aquatic plants such as pondweed and water milfoil are present, contributing to the lake’s biological productivity and habitat structure for invertebrates and smaller fish.

Conservation and use: A portion of the lake and its shores were designated as a protected area in 1998 to preserve shore meadows and wetland habitats. Human activities are regulated to minimize disturbance; fishing is managed, and motorized boating is restricted in sensitive zones. A small campsite and a network of hiking trails on the western shore support recreation and nature study, with visitors encouraged to follow Leave No Trace practices.

History: Earliest known references date to the 1640s in regional maps. Historically, Seroosikalvon provided timber resources and supported local fishing communities. In the 20th century, limnological studies investigated ice cover, water chemistry, and restoration efforts.