Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Nototheniidae
Etymology: Nototheniops: Greek, noton = filament + Greek, adverbial particle, then, that denotes distance or removal + Greek, opsis = appearance (Ref. 45335); larseni: Named for Captain C.A. Larsen, chief navigator of the Swedish Antarctic Expedition (Ref. 11892).
Environment / Climate / Range
Marine; benthopelagic; depth range 30 - 750 m (Ref. 51730). Polar; -1°C - 2°C (Ref. 51730); 45°S - 70°S
Length at first maturity / Size / Weight / Age
Maturity: Lm 22.5  range ? - ? cm
Max length : 24.0 cm TL male/unsexed; (Ref. 5179)
(total): 5 - 6;
soft rays: 37 - 38. Irregular oblique dark cross-bars on body. Distal part of spinous dorsal with black blotch, soft dorsal with oblique dark stripes. Anal plain or similarly marked. Breast to middle depth of pectoral fins a notable silvery-white (Ref. 11892).
Southern Ocean: Balleny Islands, Peter I Island, Palmer Archipelago, Graham Land, South Shetlands, South Orkneys, South Sandwich, South Georgia, Shag Rocks, Bouvet, and sub-Antarctic islands and seamounts of the Indian Ocean Sector (except Kerguelen, Heard, McDonald and Macquarie islands and Kara Dag seamount).
Feeds mainly on krill, hyperiid amphipods and mysids. Spawning occurs in autumn and winter (Ref. 51730).
Dewitt, H.H., P.C. Heemstra and O. Gon, 1990. Nototheniidae. p. 279-331. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5179)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00303 - 0.00910), b=3.18 (3.03 - 3.33), based on LWR estimates for species & Family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.3 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.27; Fec = 2,046).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .