Why does the gulf stream have barely any life?

Question

Why does the gulf stream have barely any life?

Answer 1

I was unable to find anything confirming your statement/question.  I found a couple of sites that talked about the kinds of life in the Gulf Stream:

The marine organisms of the Gulf Stream system are not of great commercial value. Principal species include the bluefin tuna, the Atlantic salmon, and the flying fish.

Warm currents are vital for marine life. They transport specially adapted tropical and sub tropical species such as tuna to rich food supplies in temperate areas. Where the warm currents meet cold waters another feeding opportunity is created where upwelling occurs. Warm currents also shed small pockets of warm water that provide localised feeding zones for surface-layer hunters.

Answer 2

Its a fast moving current that changes temperatures drastically as you go from the equator north so nothing can really live in it