Oceans:
* Coastal waters: Shellfish thrive in shallow, nearshore areas with good water quality and plenty of food sources. This includes bays, estuaries, and inlets.
* Open ocean: Some species, like scallops, are found in deeper waters further from shore.
Freshwater:
* Lakes and rivers: Some types of freshwater mussels and clams can be found in freshwater environments.
Specific examples:
* Clams: Found in sandy or muddy bottoms of bays, estuaries, and along coastlines.
* Oysters: Prefer brackish water (a mix of fresh and saltwater) in oyster reefs attached to hard surfaces.
* Scallops: Live on the seafloor in both shallow and deeper waters.
* Mussels: Found attached to rocks, piers, or other hard surfaces in coastal waters.
* Crawfish: Live in freshwater rivers, streams, and swamps.
* Crab: Can be found in both saltwater and freshwater environments, depending on the species.
Important Note: Shellfish are a valuable food source, but it's crucial to obtain them from reputable sources to avoid potential contamination with harmful bacteria or toxins.