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🌊 Marine 🌡️ Polar

Spiny icefish

Chaenodraco wilsoni Regan, 1914
Max Length
43 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
200–800 m
Climate
Polar
Resilience
Medium
Vulnerability
47.00/100
Typical Length
30 cm
Depth Zone
-

📖 Overview

Common in shallower waters of the continental shelf, especially on banks less than 250 m deep in areas where local upwelling increase food supply . Postlarvae and pelagic juveniles are also found in the upper 100 m . Food consists of fishes and krill. Spawn in winter . Larval pelagic phase is long . Prey to penguins and seals . Utilized as a food fish .

Scientific Name
Chaenodraco wilsoni
Authority
Regan, 1914
Habitat
Marine
Climate
Polar
Body Shape
Elongated
Max Length
43 cm
Depth Range
200–800 m
Trophic Level
3.2
Resilience
Medium
Vulnerability
47.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 5 - 8; Dorsal soft rays (total): 38 - 42; Anal spines: 0; Anal soft rays: 32 - 36. Supraorbital ridge not crenulated. Middle lateral line restricted to caudal peduncle; lower lateral line originating from in front of anal-fin origin to above sixth anal ray. Maxilla extending to below anterior third of eye. Opercular bones with 2 upper and 3 lower spines. Preopercular-mandibular canal not joined to temporal canal. Pelvic fins extending beyond anal-fin origin. In life, pale grey, whitish ventrally. Differentiated by the dorsoventrally oval shape; the prominent distally rounded rostrum, pseudo-rostrum and pseudo-antirostrum; the clearly defined excisura ostii and pseudo-excisura ostii; the acutely constricted collum; and the well developed colliculli. Ontogeny: The excisura ostii and the pseudo-excisura ostii become deeper and the crista inferior becomes less distinct with an increase in the fish size.: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Spiny icefish is currently being reviewed.

🦐 Diet

Diet information for Spiny icefish is currently being compiled.

🥚 Reproduction

Reproduction data for Spiny icefish is currently being compiled.

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 200 - 800 m . Polar; 60°S - 78°S, 180°W - 180°E South Orkney Islands and Antarctic Peninsula.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.2±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.00098 × L3.53 (TL)
Max TL
43cm
Dorsal Spines
7
Dorsal Rays
40
Anal Rays
34

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
47.00/100
Moderate-High vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Polar
Described By
Regan, 1914

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Chaenodraco fasciatus Regan 1914 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 16 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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