沼 - marsh, lake, bog

marsh; swamp; bog

bog; marsh; swamp; quagmire; morass

lake; marsh; wetland; inland waters

marsh; swamp; wetland; bog; pond

marshland; wetland; swampland

deep-mud paddy

marsh gas; methane

wetland; marshland

Tanuma period (1767-1786)

Nipponocypris sieboldii (species of cyprinid)

starry flounder (Platichthys stellatus)

lake type (i.e. eutrophic, dystrophic, oligotrophic)