Otatomarinuma Pond

About Otatomarinuma Pond

A pond about 1 km around in southeastern Rishiri Island, the largest lake on the island. A walking path circles it, with Mt. Rishiri reflected on the water. In the 1991 survey it was dystrophic, with pond lilies and pygmy water lilies, and crucian carp and loach.

Sources: Ministry of the Environment, Rishiri-Rebun-Sarobetsu National Park, Environment Agency of Japan, Lake Survey Report (1993), Environment Agency of Japan, Lake Survey Report: Data Appendix (1993) (sources in Japanese)

Lake data

Area

0.08 km²#86 in Hokkaido

Maximum depth

1 m#92 in Hokkaido

Average depth

0.9 m

Surface elevation

5 m

Transparency

1 m#43 in Hokkaidoas of the 1991 survey

Origin

Lagoon-origin lake

Lake type

Dystrophic

Fresh or brackish

Freshwater

Freezing

Freezes in winter

Unmodified lake

No

Natural park

Rishiri-Rebun-Sarobetsu National Park

Lake number

0130number in the national lake survey

Sources: Environment Agency of Japan, 4th National Survey on the Natural Environment: Lake Survey Report (1993). Area and depth use newer figures from the Geospatial Information Authority of Japan where available. Origin, lake type, transparency, freezing and unmodified status are as of the 1991 survey.

Themes that include Otatomarinuma Pond

• Lagoon-origin lakes
• Dystrophic lakes
• Freshwater lakes