Offshore Reefs, Corals, Open Water
1 - 31 pounds
1" - 39"
Also known as the Coolihoo, the Yellow Jack isn’t much of a popular fish despite its size. Though a lot of people end up catching it, the Yellow Jack is often overlooked because its cousins are larger. The Yellow Jack is oblong shaped and compressed laterally, although its body from the top looks more curved outward.
Its fins have a glassy appearance to them and are often gold-yellow to golden brown in color. A Yellow Jack also gets its name from the streaks of yellow covering its body. Although some parts of its body have cerulean blue tints, the blue of a Yellow Jack may seem brighter because of the yellow contrast. The Yellow Jack’s dorsal fin is split into two parts: its first portion being split into 7 spines while the second portion only has 1 spine but made up of 21-24 rays. Its pectoral fins are sickle-shaped and are slightly longer than the head.
Yellow Jacks are predators and carnivores. They prey on smaller fish although they also go for animals that lie deeper under the water usually near the benthic zone. When the Yellow Jack hunts for food, they usually use a larger species of fish to cause a commotion. Once there’s enough commotion, the Yellow Jack swoops in and devours the stragglers that are trying to escape.
Yellow Jacks can grow quite big. They grow as long as 39 inches and weigh 31 pounds. They become sexually mature from 9 inches to 12.6 inches.