Saltwater fish

Saltwater fish are fish that spend some or all of their lives in salt water such as oceans or salt lakes, generally with a salinity of more than 0.05%.

Categorisation of saltwater fish by habitats

Coastal fish (also offshore fish or neritic fish) inhabit the sea between the shoreline and the edge of the continental shelf
Deep sea fish live below the photic zone of the ocean, i.e. where not enough light penetrates for photosynthesis to occur
Pelagic fish live near the surface of the sea or a lake
Demersal fish live on or near the bottom of the sea or a lake
Coral reef fish are associated with a coral reef.

References

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