The yellow-headed hulafish is a small, elongate fish growing to a maximum size of 15 centimetres. They are pale in colour, with yellow on the head and a long, pointed yellow caudal fin with an iridescent blue margin. Hulafish form small to large aggregations in sheltered shallow bays to offshore reefs to 30 metres depth, showing preference to reef and cave habitats. They feed on plankton suspended in the water column.
The yellow-headed hulafish is endemic to Australia and is common in south-western waters. They occur from the Houtman Abrolhos Islands, WA to Gulf St Vincent, SA.
Other common names include: Noarlunga hulafish
Occurrence at the Busselton Jetty:
One to several large schools of yellow-headed hulafish are observed from the underwater observatory on a daily basis, no more than a couple of metres from the observatory. They tend to occupy the same area each day.
Image by: O.Rynvis