noun
limnology
Scientific study of inland waters such as lakes, ponds, and marshes. A technical academic term.
彼は大学で湖沼学を専攻している。
He is majoring in limnology at university.
湖沼学の研究には水質調査が欠かせない。
Water quality surveys are essential for limnological research.
A broader term for the study of inland waters, sometimes used interchangeably with 湖沼学, but 湖沼学 specifically emphasizes lakes and ponds.
Compound of 湖沼 (こしょう, 'lakes and marshes') + 学 (がく, 'study'). The term is a direct calque from English 'limnology'.