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🌊 Marine Least Concern 🌡️ Tropical

Dusky skate

Pavoraja umbrosa Last, Mallick & Yearsley, 2008
← All Species
Max Length
36.9 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
360–731 m
Climate
Tropical
Resilience
Low
Vulnerability
36.00/100
Typical Length
-
Depth Zone
-

📖 Overview

A demersal species found on upper continental slope. Males reaches maturity at ca. 32-35 cm TL, smallest juvenile 8cm TL. Discarded bycatch of local trawl fisheries

Scientific Name
Pavoraja umbrosa
Authority
Last, Mallick & Yearsley, 2008
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
36.9 cm
Depth Range
360–731 m
Trophic Level
3.7
Resilience
Low
Vulnerability
36.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Dusky skate is currently being compiled.

🌀 Behaviour

Behavioural data for Dusky skate is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 360 - 731 m . Tropical; 27°S - 33°S, 153°E - 156°E South Wales, eastern Australia.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.7±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00562 × L3.11 (TL)
Max TL
36.9cm

🌡️ 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
36.00/100
Moderate vulnerability
Trophic Level
3.7
Predator
Climate Zone
Tropical
Described By
Last, Mallick & Yearsley, 2008

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