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Chaenodraco wilsoni  Regan, 1914

Spiny icefish
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Chaenodraco wilsoni   AquaMaps   Data sources: GBIF OBIS
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Image of Chaenodraco wilsoni (Spiny icefish)
Chaenodraco wilsoni
Picture by Busse, K.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Channichthyidae (Crocodile icefishes)
Etymology: Chaenodraco: Greek, chaeno = to yawn + Greek, drako = dragon (Ref. 45335).   More on author: Regan.

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 200 - 800 m (Ref. 5200).   Polar, preferred -2°C (Ref. 107945); 60°S - 78°S, 180°W - 180°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southern Ocean: Antarctic continental shelf and Antarctic offshore islands (South Orkney, South Shetland and Elephant islands).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 23 - ? cm
Max length : 43.0 cm TL male/unsexed; (Ref. 5200); common length : 30.0 cm TL male/unsexed; (Ref. 2805)

Short description Morphology | Morphometrics

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.

Biology     Glossary (e.g. epibenthic)

Common in shallower waters of the continental shelf, especially on banks less than 250 m deep in areas where local upwelling increase food supply (Ref. 6390). Food consists of fishes and krill. Spawn in winter (Ref. 6390). Larval pelagic phase is long (Ref. 28915). Prey to penguins and seals (Ref. 6390). Utilized as a food fish (Ref. 5200).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Iwami, T. and K.-H. Kock, 1990. Channichthyidae. p. 381-389. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5200)

IUCN Red List Status (Ref. 109396)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(fisheries: production; publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00166 (0.00072 - 0.00384), b=3.43 (3.23 - 3.63), based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.2 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 393-862).
Vulnerability (Ref. 59153):  Moderate vulnerability (40 of 100) .
Price category (Ref. 80766):   Very high.