Feeds on invertebrates, such as crustaceans, polychaetes and sea urchins.
Males can produce sound through contracting specialised muscles near the swim bladder. Females do not possess those muscles and do not produce call. Sound production is suggested to be related to mating activities.
Can live to at least 33 years old in the wild.
Description
Body silvery or brownish dorsally. White ventrally.
1 or more black spots on rear back and on the upper caudal peduncle.
