Mackerel Scad

Scientific Name: Decapterus macarellus
Family: Jacks - Carangidae
Maximum Size: 35cm
Identification: Silvery, very slender, nearly cylindrical in cross section; small mouth, jaw does not extend below eye; black spot on edge of gill cover.
Favourite: Form large schools.
Hide-out: Coastal lagoons and outer reefs to 360m.
Location: Circumtropical.

Bigeye Scad

Scientific Name: Selar crumenophthalmus
Family: Jacks - Carangidae
Maximum Size: 30cm
Identification: Silvery, often with yellow stripe on side; deep-body; large eye (diameter greater than snout length), scutes only on rear third of lateral line.
Favourite: Form schools.
Hide-out: Coastal reef and lagoons to 170m.
Location: Circumtropical.