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🌊 Marine 🌡️ Subtropical

Stout whiting

Sillago robusta Stead, 1908
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
10–70 m
Climate
Subtropical
Resilience
High
Vulnerability
32.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

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

Scientific Name
Sillago robusta
Authority
Stead, 1908
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
Max Length
30 cm
Depth Range
10–70 m
Trophic Level
3.3
Resilience
High
Vulnerability
32.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 16 - 18; Anal spines: 2; Anal soft rays: 16 - 19; Vertebrae: 33. The base of the first dorsal-fin spine yellow and the remainder of its keel dark brown to blackish. A silvery stripe runs midlaterally on the sides, and a yellow blotch is on the cheek.: fusiform / normal; Cross section: circular.

🌀 Behaviour

Behavioural data for Stout whiting is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
15.2cm TL

Multiple spawner with asynchronous development .

🌍 Habitat & Distribution

Marine; demersal; oceanodromous ; depth range 10 - 70 m . Subtropical; 21°S - 40°S, 111°E - 157°E South Wales (eastern population).

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Oceanodromous
Trophic Level
3.3±0.1
Food Items

crustaceans such as copepods and mysidaceans, whereas larger fishes (11-20 cm) consume more polychae

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.07 (TL)
Max TL
30cm
Dorsal Spines
12
Dorsal Rays
17
Anal Spines
2
Anal Rays
18
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Stead, 1908

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Sillago auricomis Ogilby 1910 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 8 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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