Why are mussels not abundant above and below the littoral zone?
1 Answer
Aug 10, 2017
They are filter feeders.
Explanation:
They need a sandy bottom to anchor them, and they feed on small creatures that are not below the littoral zone. They also depend on fish for part of their life cycle as larvae.
http://www.museum.state.il.us/ismdepts/zoology/mussels/intro_habitat.html
