Puneet Varma (Editor)

Lake Akan

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Lake type
  
Dimictic

Catchment area
  
148 km (57 sq mi)

Surface area
  
13 km (3,200 acres)

Surface elevation
  
420 m

Mean depth
  
18 m

Outflow location
  
Akan River

Primary outflows
  
Akan River

Basin countries
  
Japan

Average depth
  
17.8 m (58 ft)

Area
  
13 km²

Shore length
  
25.9 km

Cities
  
Kushiro

Lake Akan wwwjapanguidecomg2680101jpg

Similar
  
Akan National Park, Lake Mashū, Lake Kussharo, Mount Meakan, Mount Oakan

Hokkaido lake akan


Lake Akan (阿寒湖, Akan-ko) is a lake in Kushiro, Hokkaidō, Japan. It is located in Akan National Park and is a Ramsar Site.

Contents

Map of Lake Akan, Kushiro, Hokkaido Prefecture, Japan

Lake akan snow mobile banana boat


History

Volcanic activity formed the lake some 6,000 years ago, when a dam was formed. The lake used to have a clarity of 8–9 meters in the 1930s. Pollution from local hotspring resorts has decreased the transparency to 3–4 meters.

Flora and fauna

The lake is famous for the marimo (Aegagropila sauteri), aggregations of algae that form into spherical shapes 2–15 cm in diameter. Other flora of the lake include the following:

  • Phragmites communis
  • Nuphar sp.
  • Potamogeton crispus
  • Hydrilla verticillata
  • Myriophyllum verticillatum
  • Vallisneria gigantea
  • Melosira italica
  • Asterionella formosa
  • Synedra
  • Kokanee salmon (Oncorhynchus nerka) are native to Lake Akan. Other fauna of the lake include the following:

  • Zooplankton:
  • Daphnia longiremis
  • Bosmina coregoni
  • Eurytemora affinis
  • Bottom:
  • Chironomus plumosus
  • Tubificidae
  • Fish:
  • Cyprinus carpio
  • Carassius
  • Hypomesus olidus
  • Leuciscus hakonensis
  • References

    Lake Akan Wikipedia