Scientific Name
Sillago robusta

Common Name
Stout sillago

Biology
Occur in bays and estuaries, but more commonly in deep offshore waters (Ref. 9563). Inhabit sandy substrates. Juveniles feed mainly on crustaceans such as copepods and mysidaceans, whereas larger fishes (11-20 cm) consume more polychaetes (Ref. 6223). Sexually mature below 13 cm SL and rarely exceeds 17 cm in Western Australia. Oviparous (Ref. 205), multiple spawner with asynchronous development (Ref. 12343). The flesh is soft and trawled fish are frequently bruised (Ref. 6205).

Classification

Classified By

Stead, 1908

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Smelt-whitings (Sillaginidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: endemic to Australian waters from Fremantle northward to Shark Bay (western population), and from southern Queensland to New South Wales (eastern population).

Range

21°S - 40°S, 111°E - 157°E

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

10 m

Depth To - meters

70 m

Zone

demersal

Environment

Marine; demersal; oceanodromous (Ref. 51243); depth range 10 - 70 m (Ref. 6205)

Trophic Level

3.23 s.e. 0.40 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

30.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

Low vulnerability (17 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated