Aku the Skipjack Tuna

Aku is a medium-sized perciform fish in the tuna family, Scombridae. It grows up to 3 ft in length.

Aku is a streamlined, fast-swimming pelagic fish, common in tropical waters throughout the world, where it inhabits surface waters in large shoals (up to 50,000 fish), feeding on fish, crustaceans, cephalopods, and molluscs. It is an important prey species for large pelagic fishes and sharks. It has no scales, except on the lateral line and the corselet (a band of large, thick scales forming a circle around the body behind the head). It commonly reaches lengths up to 31 in and a weight of 18–22 lb. Its maximum fork length is 43 in and maximum weight is 76 lb. Aku estimates a lifespan range between 8 and 12 years.

 Want to catch some of your own?

Alexa Roggeveen


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