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🌊 Marine 🌡️ Deep-water

Scaly rockcod

Trematomus loennbergii Regan, 1913
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
0–1191 m
Climate
Deep-water
Resilience
Medium
Vulnerability
61.00/100
Typical Length
20 cm
Depth Zone
deep-water

📖 Overview

Found more commonly at depths greater than 300 m. Adults feed on amphipods (mainly Orchomene plebs), errant polychaetes, and in lesser amounts, fishes. Isopods and other crustaceans are probably included in the diet.

Scientific Name
Trematomus loennbergii
Authority
Regan, 1913
Habitat
Marine
Climate
Deep-water
Body Shape
Fusiform / normal
Max Length
30 cm
Depth Range
0–1191 m
Trophic Level
3.3
Resilience
Medium
Vulnerability
61.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 31 - 35; Anal soft rays: 31 - 35. Body brownish, fins darker except first dorsal. With 4 or 5 irregular darker cross-bars, inside of mouth and branchial cavities blackish .: fusiform / normal.

🌀 Behaviour

Behavioural data for Scaly rockcod 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 0 - 1191 m , usually 65 - 832 m. Deep-water; 61°S - 78°S, 180°W - 180°E South Victoria Coasts, Davis, Ross and Weddell seas.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.3±0.48
Food Items

amphipods (mainly Orchomene plebs), errant polychaetes, and in lesser amounts, fishes

📐 Morphometrics

Length–Weight Relationship: W = 0.00427 × L3.25 (TL)
Max TL
30cm
Dorsal Spines
6
Dorsal Rays
33
Anal Rays
33

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
61.00/100
High vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Deep-water
Described By
Regan, 1913

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Pseudotrematomus loennbergii Regan 1913 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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