Habitat and Distribution A. Distribution.
Bony fishes inhabit almost every body of water.
They are found in tropical, temperate, and polar seas. Bony fishes exist in fresh water, seawater, and brackish environments. Some species of bony fishes aren't limited to one particular ecosystem. Diadromous bony fish species migrate between fresh and saline environments. Depending on the species, bony fishes can live at various temperatures.