microbenthos

Noun

uncountable

(biology) benthic organisms that are less than .1 mm in size and thus microscopic.

Japanese Meaning

底生微小生物: 底生性の環境に生息し、体長が0.1ミリ未満と非常に小さい生物群。

Marine biologists sifted the sediment to identify the microbenthos and assess their role in the estuary's food web.

海洋生物学者たちは、堆積物をふるいにかけて微小底生生物（大きさが0.1 mm未満の底生生物）を同定し、汽水域の食物網における役割を評価した。

Sense（1）

(biology) benthic organisms that are less than .1 mm in size and thus microscopic.