Endangered Marine Ecosystems Crossword Clue — 5 Letters

One confident answer with explanation of the wordplay

REEFS

Best match

R

E

E

F

S

Coral reefs are well-known endangered marine ecosystems, threatened by climate change, bleaching, and ocean acidification. "REEFS" is exactly 5 letters and is the most direct answer to this clue.

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Other possible answers

CORALSCorals are the organisms that form reef ecosystems and are also endangered, but this is 6 letters so doesn't fit.

KELPSKelp forests are endangered marine ecosystems, 5 letters, a possible alternative.

ATOLLAn atoll is a ring-shaped reef/island structure, 5 letters, but not typically described as 'endangered ecosystems' directly.

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