Blue Weed-Whiting

Haletta semifasciata

The Blue Weed-whiting is a species of ray-finned fish endemic to the southern coast of Australia, including Tasmania. Divers can spot this fish in brackish and marine environments, typically in sheltered areas with sandy substrates and seagrass beds. It thrives at depths ranging from 1 to 7 meters. This fish is known for forming large schools in estuaries and other protected waters, making it a common sight for divers exploring these habitats. The Blue Weed-whiting reaches a maximum length of 29 centimeters. Its diet is primarily carnivorous, consisting mainly of polychaetes, but it also feeds on gastropods, crustaceans such as crabs and amphipods, and occasionally on algae and seagrass, particularly Zostera. While it is of minor importance to local fisheries, the Blue Weed-whiting is harmless to humans and holds a conservation status of Least Concern. Divers encountering this fish can expect to see it schooling in the seagrass beds, contributing to the dynamic underwater ecosystem of Australia's southern coastal waters.