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🌊 Marine Vulnerable ⚠️ Venomous ⚡ Traumatogenic 🌡️ Temperate

Melbourne skate

Spiniraja whitleyi Iredale, 1938
Max Length
200 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
1–170 m
Climate
Temperate
Resilience
Low
Vulnerability
85.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Most abundant in shallow water near shore . Found over soft bottom . Recorded to be found at 345 m depth . Diet mainly consists of crabs, octopuses and small bony fishes . Oviparous . Males reaches maturity at ca. 127 cm TL . Eggs have horn-like projections on the shell . Egg cases ca. 22 cm long, hatch size at ca. 20 cm TL . Thorny tail can inflict a minor injury .

Scientific Name
Spiniraja whitleyi
Authority
Iredale, 1938
Habitat
Marine
Climate
Temperate
Body Shape
Other
IUCN Status
VU
Max Length
200 cm
Depth Range
1–170 m
Trophic Level
4
Resilience
Low
Vulnerability
85.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Spiniraja
Spiniraja
Species
Melbourne skate
Spiniraja whitleyi

🐟 Physical Description

Dorsal surface greyish or greyish brown with irregularly spaced white flecks, ventral surface cream or white, occasionally with greyish areas. Disc quadrangular, broader than long. Snout of moderate length, broadly rounded and knob-like at snout tip. Tail short, very depressed, broad; lateral skin folds prominent. A row of 1-5 thorns on nuchal and shoulder region, orbital and malar thorns absent. Alar thorns retractable. Tail with 1-3 rows of thorns, outer rows located near lateral margin.: other.

🌀 Behaviour

Behavioural data for Melbourne skate is currently being reviewed.

🦐 Diet

Diet information for Melbourne skate is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, paired eggs are laid. Embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; demersal; depth range 1 - 170 m . Temperate; 32°S - 44°S, 115°E - 153°E endemic to southern Australia.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
4±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.24 (TL)
Max TL
200cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
85.00/100
Very High vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Other
Climate Zone
Temperate
Described By
Iredale, 1938

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