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🌊 Marine Least Concern ⚡ Other 🌡️ Subtropical

Argus skate

Dentiraja polyommata Ogilby, 1910
Max Length
36 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
135–400 m
Climate
Subtropical
Resilience
Low
Vulnerability
32.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found on the outer continental shelf and upper slopes. Bottom-dweller which feeds on invertebrates, mainly on crustaceans such as shrimps and prawns and bony fish . Oviparous . Eggs have horn-like projections on the shell . Males reaches maturity at ca. 30 cm TL, females at ca. 32 cm TL .

Scientific Name
Dentiraja polyommata
Authority
Ogilby, 1910
Habitat
Marine
Climate
Subtropical
Body Shape
Other
IUCN Status
LC
Max Length
36 cm
Depth Range
135–400 m
Trophic Level
4
Resilience
Low
Vulnerability
32.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal surface pinkish brown to greyish brown with irregular clusters of small, dark, white-edged spots. Ventral surface pale, occasionally with dark patches around mouth and central disc. Dorsal fins uniform pale brown. Disc quadrangular, broader than long. Snout short to moderate. Tail of medium length, depressed, slender; lateral skin folds well developed. Nuchal thorn small. Orbital thorns usually absent from mid-eye, usually less than 5 in mature specimens. Mature males with denticles along anterolateral margin.: other.

🌀 Behaviour

Behavioural data for Argus skate is currently being reviewed.

🦐 Diet

Diet information for Argus skate is currently being compiled.

🥚 Reproduction

🐣 Oviparous
Size at Maturity
28cm TL

Oviparous . Paired eggs are laid. Embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 135 - 400 m . Subtropical; 18°S - 24°S, 148°E - 154°E

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
4±0.61
Food Items

invertebrates, mainly on crustaceans such as shrimps and prawns (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.24 (TL)
Max TL
36cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Other
Climate Zone
Subtropical
Described By
Ogilby, 1910

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