About Centroberyx affinis (Günther, 1859)
Nomenclature
The eastern nannygai, with the scientific name Centroberyx affinis, has several other common names: redfish, bight redfish, red snapper, golden snapper, and koarea.
It is an alfonsino belonging to the genus Centroberyx.
Distribution
This species lives around Australia and New Zealand, at depths ranging from 10 metres (33 feet) to 450 metres (1,476 feet) on the continental shelf.
Size
It can grow to a maximum total length of 51.0 centimetres (20.1 inches) standard length.
Diurnal Grouping Behavior
At dawn and dusk, it forms schools close to the sea floor over rocky reefs and muddy areas.
Feeding Behavior
At night, it splits into smaller groups to hunt and feed on mollusks, crustaceans, and small fish.
Juvenile Habitat
Young eastern nannygai live in estuaries and shallow coastal waters.
Human Relevance
It is commercially fished in the Australian states of New South Wales and South Australia, and nannygai are regarded as an excellent fish for eating.