New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Least Concern 🌡️ Boreal

Deep-water ray

Rajella bathyphila Holt & Byrne, 1908
Max Length
90 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
600–2300 m
Climate
Boreal
Resilience
Low
Vulnerability
56.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found on deeper continental slopes and probably abyssal plains, mainly deeper than 1,400 m . Oviparous . Eggs have horn-like projections on the shell . It is caught as by-catch in low numbers by deep trawl fisheries .

Scientific Name
Rajella bathyphila
Authority
Holt & Byrne, 1908
Habitat
Marine
Climate
Boreal
Body Shape
Other
IUCN Status
LC
Max Length
90 cm
Depth Range
600–2300 m
Trophic Level
3.3
Resilience
Low
Vulnerability
56.00/100
Water Temp
3–4 °C
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Lower surface of the discus dark brown, darker in upper surface. Without definite markings, outer edges of pectoral and pelvic fins shading to darker .: other.

🌀 Behaviour

Behavioural data for Deep-water ray is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Size at Maturity
70cm TL

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

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 600 - 2300 m , usually 1300 - 1400 m . Boreal; 3°C - 4°C ; 73°N - 37°N, 75°W - 5°W North Atlantic and adjacent Arctic: ne USA to Rockall Trough (British Isles) (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.3±0.45

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.24 (TL)
Max TL
90cm

🌡️ Water Parameters & Tolerance

Temperature Range
3–4°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
56.00/100
High vulnerability
Trophic Level
3.3
Predator
Body Shape
Other
Climate Zone
Boreal
Described By
Holt & Byrne, 1908

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 17 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Deep-water ray ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.