[3] They are carnivorous and feed, both day and night, on other, smaller fish, such as baitfish, small squid, octopus, crab and shrimp.

The longfin yellowtail is a pelagic species, which are found in open-ocean zones in the vast deep waters beyond the continental shelf.

In the western Atlantic, they live mostly from Cape Cod to northern Argentina, although they are rare off North and South Carolina.

In the Northeast Atlantic it is known from the Azores[7] , Madeira, and mainland Portugal, though it has also been reported in southern England[8] and in the Gulf of Biscay.

[2] The unusual stamina of the longfin yellowtail makes them a prime target for sport fishing in deep waters.

[3] In 2019, federal permit applications were filed to the United States Environmental Protection Agency and US Army Corps of Engineers to conduct a pilot study funded by Florida Sea Grant (using this species) 45 miles into the Gulf of Mexico southwest of Sarasota Florida.

[16] The draft National Pollution Discharge Elimination System permit application was posted for public comment by the EPA.

[13] A Hawaiian fish farm grows longfin yellowtail, branded Kona Kampachi, in ring- or diamond-shaped net pens moored to the sea bottom 800 feet (240 m) below.

[19] The flesh of the longfin yellowtail is quite delicious and may be prepared in a myriad of dishes, from completely raw (e.g. sushi, sashimi, crudo, etc.)