Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Channichthyidae
Etymology: Champsocephalus: Greek, champso = crocodile, voracious predator + Greek, kephale = head (Ref. 45335). More on author: Lönnberg.
Environment / Climate / Range
Marine; pelagic-oceanic; depth range 0 - 700 m (Ref. 11892), usually 30 - 250 m (Ref. 11892). Polar, preferred -1°C (Ref. 107945); 48°S - 66°S
Southern Ocean: Islands of the Scotia Sea, including the northern part of Antarctic Peninsula; Kerguelen, Heard and Bouvet islands; in the South Atlantic, near the South Georgia. Also in near the South Orkneys and South Shetland islands.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 21 - 32 cm
Max length : 66.0 cm TL male/unsexed; (Ref. 5200); common length : 35.0 cm TL male/unsexed; (Ref. 2805); max. published weight: 2.0 kg (Ref. 4883)
Feed mainly on krill and mysids. Spawn in autumn and winter (Ref. 50743). Synchronous spawner (Ref. 50743). Larval pelagic phase is long (Ref. 71843). Utilized as a food fish (Ref. 4931).
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)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: minor commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00145 (0.00115 - 0.00182), b=3.42 (3.35 - 3.49), based on LWR estimates for this species (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 (K=0.13-0.39; tmax=13; tm=4; Fec=3,094).
Prior r = 0.34, 2 SD range = 0.12 - 1.00, log(r) = -1.08, SD log(r) = 0.54, Based on: 5 K, 4 tgen, 27 Fec records
Vulnerability (Ref. 59153
): Moderate vulnerability (35 of 100) .