Blue Bastard

Plectorhinchus caeruleonothus

Plectorhinchus caeruleonothus, commonly known as the Blue Bastard, is a unique species of reef fish endemic to Australia. Adults display a predominantly silvery-grey body with bluish-grey cheeks and operculum, while juveniles are characterized by a blackish-brown body adorned with slender white stripes. The species can grow up to 100 cm in length and is distinguished by its small nostrils and specific fin ray counts, including 12 dorsal spines and 18-20 soft rays. This species inhabits the coastal waters of Australia, from Rottnest Island in Western Australia to Lizard Island in Queensland. It prefers shallow intertidal zones and reefs, though it can be found at depths of up to 30 meters. The Blue Bastard is known for its solitary nature, with larger individuals often seen foraging alone over sandy or silty substrates. Notably, these fish engage in aggressive territorial disputes, locking jaws and wrestling near the water's surface. Despite its elusive nature, the Blue Bastard is not considered a culinary prize, as its flesh is not highly regarded. It is often caught as bycatch in commercial fisheries and is a challenging target for recreational anglers. The species is currently classified as Least Concern by the IUCN.