Named after Tom Eyears sooty grunter (scientific name: Hephaestus fuliginosus) is also known as a "sooty", "bream", "grunter", and "blackbream". They can weigh up to 4 kilograms (8.8 lb). Sooty grunters prefer rivers with clear flowing water and a sandy or rocky substrate, but have a wide range of environmental tolerance.
Sooty grunters live in Queensland

Queensland

Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

 and Northern Territory

Northern Territory

The Northern Territory is a federal territory of Australia, occupying much of the centre of the mainland continent, as well as the central northern regions...

. Sooties feed mainly on invertebrate

Invertebrate

An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...

s, especially freshwater prawn

Prawn

Prawns are decapod crustaceans of the sub-order Dendrobranchiata. There are 540 extant species, in seven families, and a fossil record extending back to the Devonian...

s, and small fish. But their diet can be far more varied when river flows and water levels fall, and then can include water weeds and falling figs and Pandanus

Pandanus

Pandanus is a genus of monocots with about 600 known species. They are numerous palmlike dioecious trees and shrubs native of the Old World tropics and subtropics. They are classified in the order Pandanales, family Pandanaceae.-Overview:...

nuts.