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Which fish species live in the Gulf Stream system?

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Map of the North Atlantic Ocean showing major ocean currents, with warm currents like the Gulf Stream and North Atlantic Drift highlighted in pink and cold currents in blue. Arrows indicate current directions and relative speeds, connecting the eastern coasts of North America, the western coasts of Europe and Africa, and the Arctic region. — Gulf Stream Major warm and cold currents of the North Atlantic Ocean.

The Gulf Stream system supports various fish species, though it is noted that the organisms directly within the current are not of great commercial value. Principal fish species associated with the Gulf Stream include:1

Bluefin tuna1
Atlantic salmon (Salmo salar)1
Flying fish1
Eels (specifically the North American eel, Anguilla rostrata, and the European eel, A. anguilla)23

The Gulf Stream plays a critical role in the life cycle of eels, as it transports their larvae—known as leptocephali—from their spawning grounds in the Sargasso Sea to the continental shelves of North America and Europe. Additionally, the current acts as a transport mechanism for other fish and invertebrate larvae, often relocating tropical species to higher latitudes.23

While the Gulf Stream itself is not a primary commercial fishing ground, its interaction with colder waters—such as on the Grand Banks and off the coast of northwestern Europe—creates nutrient-rich environments that have historically supported highly productive commercial fisheries.1