Lake Kuttara

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Lake Kuttara
倶多楽湖
Coordinates 42°30′N 141°10′ECoordinates: 42°30′N 141°10′E [1]
Lake type oligotrophic crater lake
Primary inflows none [1]
Primary outflows evaporation [1]
Basin countries Flag of Japan Japan
Surface area 4.68 square kilometres (1.81 sq mi)[2]
Max. depth 148 metres (490 ft)[1]
Shore length1 8 kilometres (5.0 mi)[3]
Surface elevation 258 metres (850 ft) [1]
Islands none [1]
Settlements Shiraoi [1]
1 Shore length is not a well-defined measure.

Lake Kuttara (倶多楽湖 Kuttara-ko?) is a near circular caldera lake in Shiraoi, Hokkaidō, Japan.[1] It is part of Shikotsu-Tōya National Park. The lake is recognized as having the best water quality in all of Japan.[3] With a transparency of 19 metres (62 ft), the lake ranks second only to Lake Mashū according to the Ministry of the Environment.[2]

Resident species of the lake include a salamander species, Hynobius retardatus (エゾサンショウウオ Ezo Sanshōuo?). Since 1909 Sockeye salmon have been introduced to the lake.[2]

[edit] References

  1. ^ a b c d e f g h Topomap 25000:1 飛生 (Japanese). Geographical Survey Institute. Retrieved on 2008-06-11.
  2. ^ a b c Lake Kuttara (Japanese). Japanese Wikipedia. Retrieved on 2008-06-11.
  3. ^ a b Nature in Shiraoi (English). Official Website of Shiraoi. Retrieved on 2008-06-11.
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