Spanish mackerel (Scomberomorus commerson), also known as narrow-barred mackerel, is targeted by recreational and commercial fishers in Western Australia. Spanish mackerel can live for more than 20 years. They can grow up to about 2.4 m and more than 40 kg. Spanish mackerel have long, narrow bodies. They are dark blue along the top, becoming silvery towards the centre and underneath. They have a banded pattern, narrow dark blue or black bars running vertically along the body, narrower than the bars on their relative, the broad-barred Spanish mackerel (also called the grey mackerel).
Most commercial fishing for Spanish mackerel is done north of Geraldton, especially along the Kimberley and Pilbara coasts. Recreational fishers also target it, mainly between Perth and Dampier, for its good fighting and eating qualities.