Image Gallery: Fishes by habitat - pelagic fishes
Pelagic fishes are those that spend much of their lives swimming in open water away from the bottom. Typical pelagic fishes include the tunas, marlins, swordfish and trevallies. Pelagic fishes usually have streamlined bodies, often without scales. Some pelagic fishes, however, have quite different body shapes. This is certainly true for the larval stages of some species.

Australian Bonito caught at Cabbage Tree Island
Banana Fusiliers at 'Pixies Pinnacle'
A Barcheek Trevally at the Great Barrier Reef
Bigeye Trevally at South Solitary Island
A Black Marlin off the Pacific coast of Panama
Blue Mackerel at Coffs Harbour
A Blue Marlin caught east of Kiama
A Blue Trevally at Osprey Reef
A Blue-eye Trevalla caught off Balina
A juvenile Bluebottle-fish at Double Island Point
A Bluefin Trevally at Bougainville Reef
A school of Common Jack Mackerel at Kangaroo Island
Cottonmouth Trevally off Botany Bay
A Dogtooth Tuna at Rowley Shoals
Doubleline Fusiliers at Phil's Reef
Dusky Driftfish swimming below a jellyfish
Eastern Australian Salmon at Bass Point
A Gemfish caught off Brunswick Heads
Head of the Largetooth Cookiecutter shark
Longfin Pike at Pebbly Bay