Word

海跡湖

かいせきこ
lagoon
Word

堰止湖

堰止め湖、堰き止め湖、堰き止湖
せきとめこ
dammed lake (formed by natural damming of a river, esp. by landslide, volcanic eruption, etc.)
Word

塩水湖

えんすいこ
saltwater or saline lake
Word

河跡湖

かせきこ
crescentic lake; oxbow lake; billabong
Word

陥没湖

かんぼつこ
lake formed in volcanic caldera
Word

汽水湖

きすいこ
brackish lake
Word

湖沼学

こしょうがく
limnology
Word

湖沼型

こしょうがた
lake type (i.e. eutrophic, dystrophic, oligotrophic)
Word

無口湖

むこうこ
endorheic basin
Word

富栄養湖

ふえいようこ
nutrient-rich (or eutrophic) lake