Common names from other countries

Grande-gueule antarctique, Draco antártico, Белокровка крокодиловая, ... more

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> Perciformes/Notothenioidei (Icefishes) > Channichthyidae (Crocodile icefishes)
Etymology: Chaenocephalus: Greek, chaeno = to yawn + Greek, kephale = head (Ref. 45335).
More on author: Lönnberg.

Environment: milieu / climate zone / depth range / distribution range Ecologie

marien demersaal; diepte 5 - 770 m. Polar; 53°S - 65°S, 67°W - 4°E

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Southern Ocean: in the vicinity of Bouvet Island, Scotia Sea, and northern part of the Antarctic Peninsula.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 44.9 range ? - ? cm
Max length : 72.0 cm TL mannelijk / geslacht onbekend; (Ref. 4883); common length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 2805); max. gepubliceerd gewicht: 3.7 kg (Ref. 4883)

Adults feed mostly on fish and krill. Synchronous spawner (Ref. 50743). Larvae have a long pelagic phase (Ref. 71843). Utilized as a food fish (Ref. 4931).

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

There is only one generation of oocytes in the ovaries indicative of determinate fecundity (Ref. 50743). Mature females may spawn for the first time from around 6-8 years of age (Ref. 71843).

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Hureau, J.-C., 1985. Channichthyidae. p. 261-277. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88). Rome. Vol. 2. (Ref. 2805)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet geëvalueerd

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: van minder commercieel belang

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Estimates based on models

Preferred temperature (Ref. 115969): -1.3 - 1.6, mean 0 (based on 42 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00091 (0.00077 - 0.00107), b=3.49 (3.44 - 3.54), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.4 ±0.2 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.17-0.24; Fec = 7,358).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).

Climate Vulnerability (Ref. 125649): High to very high vulnerability (75 of 100).

Prijsklasse (Ref. 80766): High.

Chaenocephalus aceratus (Lönnberg, 1906)