water flea of the genus Daphnia, especially Daphnia pulex

沢山: much, a great deal, liberally, a lot

沢山: a lot of / 沢山: enough

沢山: a large number or amount

habitation

to inhabit, to live in (a habitat)

Seoraksan, Mt. Seorak (the highest mountain in the Taebaek mountain range in the Gangwon Province in eastern South Korea)

many, numerous

much, a lot

much, a great deal, liberally, a lot