Black mussel

Introduction: Black mussels (Choromytilus meridionalis) are common on shallow, flat reefs and low-shore rocks, especially in areas of sand cover. This species is a popular table food although it can become poisonous following toxic red tides.

Distribution: From Swakopmund and Walvis Bay south to Sandwich Harbour, Luderitz and the mouth of the Orange River.

Diet: Filter-feeds sucking water through inhalant and exhalant siphons.

Colouration: Shiny black to blue shell. The flesh of the male is pale yellow and the female dark chocolate by the gonads.

Breeding: Sperms and eggs are ejected into the water where they develop into planktonic larvae.

Max size: 150mm