Rainbow runners are sometimes used as bait for billfish.
The rainbow runner (Elagatis bipinnulata, also called Hawaiian salmon, rainbow yellowtail, or Spanish jack, is a marine fish in the family Carangidae. It is the only member of the genus Elagatis. The rainbow runner, native to tropical and subtropical waters around the world, it is a game fish and a table fish.
The rainbow runner is most closely related to the amberfish, of the genus Seriola. The fish was first described in 1825, when it was thought to be a member of the genus Seriola. The genus Elagatis was created by English zoologist Edward Bennett in 1840. The rainbow runner gets its common name from its striking colors, dark blue or green at the top, fading to white at the bottom, with two light blue horizontal stripes flanking a stripe. yellow or light green on each side. The largest rainbow runner on record weighed 101.85 pounds (46.2 kg), but the species’ greatest possible length is disputed.
Some rainbow runner species live in the surface waters of the open ocean.
The rainbow runner is a carnivorous fish that feeds mainly on small fish, crustaceans and cephalopods. They are also one of the few insect-eating fish species that land on the surface of the open ocean. Rainbow runners live in schools that can contain up to several hundred fish. Like salmon, they are very migratory.
Rainbow runners are usually caught as bycatch in other fishing operations, such as tuna and shark fishing, and then sold. They are not normally the target of commercial fisheries. While rainbow runners are said to taste fair to excellent, they generally do not sell well because the species is not as well known as other edible fish. They can be sold fresh, frozen or salted.
Rainbow runners are sometimes fished recreationally, and the species is also used as bait for larger fish, including tuna and needlefish. Archaeological evidence suggests that some prehistoric groups that lived in Micronesia looked to rainbow runners for food. They probably trolled, or pulled, bait after canoes.