Translation of "조류를" in English

나팔분홍성게는 집게로 산호초나 조류를 끌어당겨 위장함으로써 자취를 감춥니다

[Richard] They can use these little pincers to hold bits of coral rubble and algae on top of themselves to help camouflage their presence.

‎물결에 흔들리는 다시마나 조류를 ‎흉내 내려고 그러는 것 같아요

Perhaps she's trying to mimic kelp or algae moving in the swell...