To maximise their eating qualities these fish should be killed humanely by iki jime, or a firm knock to the head, before being placed in an ice slurry after bleeding. Large black jewfish can be energetic and therefore hard to handle. A firm knock on the head may be easier to implement to stun the fish first before attempting iki jime.
- Black jewfish can be distinguished from southern jewfish (mulloway) by the narrower shape of the tail peduncle, and their darker colouration.
- This species has a rapid growth rate, reaching 60 cm in around 2 years and maturing in around 4 years at 80-90 cm.
- These fish are very susceptible to barotrauma (pressure damage from being pulled out of deep water) and catch and release from water deeper than 15 meters is not recommended.
- This species occurs throughout the Indo-west Pacific region from the Persian Gulf and India, north to Japan and south to Papua New Guinea and northern Australia.
- They occur in estuaries and coastal waters over muddy bottoms, rocky reefs and other structures.
- There are several different populations of black jewfish in northern Australia, each with its own discreet spawning area to which fish return year after year.
Fish Size Common Length:
60-100 cm, maximum size 150+ cm and 40+ kg.