Scientific Name
Notesthes robusta

Common Name
Bullrout

Biology
Occur in freshwater streams and brackish shore areas. Inhabit still or gently flowing freshwater streams over rock, mud or gravel, a bottom-dwelling fish. Usually found near aquatic vegetation or woody debris. During rainy periods, may migrate downstream into estuaries, but they normally frequent fresh water. Relatively sedentary species, spending majority of their time stationary on the bottom or among weeds waiting for prey. Breed in fresh water, as juveniles have been collected from the upper reaches of rivers, including impoundments. Both adults and juveniles have venomous dorsal, anal and pelvic spines and therefore should not be handled (Ref. 44894).

Classification

Classified By

G?nther, 1860

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Wasp fishes (Tetrarogidae)

Distribution

Region

Oceania

Distribution

Oceania: Queensland and New South Wales, Australia.

Range

10°S - 38°S

Environment

Climate

Temperate

Water Temperature From

10 °C

Water Temperature To

30 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; demersal; catadromous (Ref. 51243)

Trophic Level

3.12 s.e. 0.46 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

30.0 cm

Common Length

20.0 cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

High vulnerability (64 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.)

Threat To Humans

Venomous (Ref. 4716)

IUCN Red List Status

Not Evaluated