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🌊 Marine 🌡️ Polar

Blue rockcod

Indonotothenia cyanobrancha Richardson, 1844
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Polar
Resilience
Medium
Vulnerability
44.00/100
Typical Length
20 cm
Depth Zone
demersal

📖 Overview

Blue rockcod (Indonotothenia cyanobrancha) is a ray-finned fish. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 30 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Indonotothenia cyanobrancha
Authority
Richardson, 1844
Habitat
Marine
Climate
Polar
Body Shape
Fusiform / normal
Max Length
30 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
44.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Indonotothenia
Indonotothenia
Species
Blue rockcod
Indonotothenia cyanobrancha

🐟 Physical Description

Dorsal spines (total): 4 - 6; Dorsal soft rays (total): 33 - 36; Anal soft rays: 30 - 34. Uniformly brownish but with darker markings or uniformly black. Prominent acoustico-lateralis channel on the head, absence of connecting orbital branches of the ethmoid, short frontal and narrow parasphenoid .: fusiform / normal.

🌀 Behaviour

Behavioural data for Blue rockcod is currently being reviewed.

🦐 Diet

Diet information for Blue rockcod is currently being compiled.

🥚 Reproduction

Reproduction data for Blue rockcod is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - ? m , usually 0 - 27 m . Polar Southern Ocean: Kerguelen and Heard Islands.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.22 (TL)
Max TL
30cm
Dorsal Spines
5
Dorsal Rays
35
Anal Rays
32

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
44.00/100
Moderate vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Polar
Described By
Richardson, 1844

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