infauna

/ˈɪnˌfɔnə/
noun
  1. Animals that live in the sediment or soil at the bottom of a body of water, such as worms, clams, and small crustaceans.
    • Clams and lugworms are common examples of infauna found in sandy beaches.
    • Marine biologists study infauna to understand the health of the ocean floor.
    • The diversity of infauna in this estuary has decreased due to pollution.
Antonyms
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