Eel pond - Eel pond

Japanese: 鰻池 - うなぎいけ
Eel pond - Eel pond

A crater lake at the southeastern end of the Satsuma Peninsula in Kagoshima Prefecture. It is located alongside Lake Ikeda and belongs to Ibusuki City. It is a crater lake of the Unagi volcano, with a crater wall that forms a cliff of about 100 meters, and no rivers flowing into it. It has a long axis of 1.3 kilometers, a short axis of 1 kilometers, a circumference of 4.2 kilometers, and an area of ​​1.2 square kilometers. The water surface is 122 meters above sea level, and the maximum depth is 55.8 meters, making it deep for a crater lake. The annual water temperature of the deep water layer is around 10 degrees Celsius, and the transparency is 8.5 meters. It is classified as a eutrophic lake, and carp, crucian carp, giant eels, and other fish live in the lake. It is said that the name comes from the fact that a 1.5-meter-long eel was once caught in the lake. On a narrow slope at the northeastern end is Unagi Onsen (a sulfurous spring). The water temperature of this hot spring is close to 100°C, and the steam from various places in the village is used for daily cooking, with the stove-shaped facilities here called "sume." Research is also being conducted into geothermal development to use the high-temperature steam as an energy source. The hot spring is part of Kirishima-Kinkowan National Park, and is a 15-minute bus ride from Yamakawa Station on the JR Ibusuki-Makurazaki Line.

[Kimihiko Tsukada]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

鹿児島県薩摩(さつま)半島の南東端部にある火口湖。池田湖と並んで位置し、指宿市(いぶすきし)に属する。鰻火山の火口湖で、火口壁は約100メートルの絶壁をなし、流入河川はない。長径1.3キロメートル、短径1キロメートル、周囲4.2キロメートル、面積1.2平方キロメートル。水面標高122メートル、最大水深55.8メートルで、火口湖としては深い。深水層の年間水温は10℃前後で、透明度は8.5メートル。富栄養型湖沼に分類され、湖にはコイ、フナ、オオウナギなどが生息している。昔1.5メートルもある鰻を釣り上げたことから、この名前が由来したという。北東端にある狭小な斜面には鰻温泉(硫黄泉)がある。この温泉は泉温が100℃近くあり、集落内各所の噴気は日常の炊事などに利用され、かまどの形をした設備をここでは巣目(すめ)とよぶ。高温の噴気をエネルギー源にしようと地熱開発の調査もなされている。霧島錦江湾(きりしまきんこうわん)国立公園に属し、JR指宿枕崎(いぶすきまくらざき)線山川駅からバス15分。

[塚田公彦]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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