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Why are shrimp and crabs common in estuaries?
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estuary
Four main types of estuaries: (A) salt wedge estuary, (B) partially mixed estuary, (C) vertically homogeneous estuary, and (D) fjord (black arrows indicate salt water and white arrows fresh).
Shrimp and crabs are common in estuaries primarily because of the high level of primary productivity found in these coastal environments.
The abundant plant life in estuaries supports a robust food web, providing a rich supply of nutrients for invertebrate animals like shrimps and crabs. Furthermore, the vegetation that lines estuariesāsuch as mangrove forests, salt marshes, and sea grass bedsāoffers essential protection from predators for these organisms, particularly during their early stages of development.1