Swordfish are found around the world in tropical, temperate, and sometimes cold waters of the Atlantic, Indian, and Pacific Oceans. They are found in the Gulf Stream of the Western North Atlantic, extending north into the Grand Banks of Newfoundland.

Where do swordfish mostly live?

Habitat: Broadbill swordfish are highly migratory and are found throughout the Atlantic, Indian and Pacific Oceans. They are primarily a warm-water species that moves into cooler, temperate waters for feeding during the Australian summer months and returns to warmer tropical waters for spawning and over-wintering.

Why do swordfish live so deep?

This mechanism, known as 'regional muscle endothermy', clearly enables swordfish to maintain high swimming performance while at depth in cold water, but it does not fully account for their ability to survive such rapid dives and to spend such long periods at depth.