Actinopteri (ray-finned fishes) > Perciformes/Notothenioidei
() > Nototheniidae
(Cod icefishes) > Trematominae
Etymology: borchgrevinki: Named after C.E. Borchgrevink, Norway, Commander of the Bristish Southern Cross Antarctic Expedition of 1898-1900 (Ref. 11892). More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range 0 - 550 m (Ref. 11892), usually 0 - 30 m (Ref. 5179). Polar; 60°S - 78°S
Southern Ocean: Ross, Davis and Weddell Sea, Vincennes Bay, Budd Coast, Antarctic Peninsula, South Orkney and South Shetland islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm TL male/unsexed; (Ref. 5179)
A cryopelagic species associated with the underside of ice. An anti-freezing substance enable Individuals to tolerate sub-zero temperature (Ref. 33215). Adults feed on copepods and krill (Ref. 5179). Sexually mature individuals spawn once a year (Ref. 89319). Larval pelagic phase is long (Ref. 89319).
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. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): -1.8 - -1, mean -1.7 °C (based on 1248 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00316 - 0.01821), b=3.15 (2.94 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.34 se; based on food items.
Generation time: 7.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 1,500-3,000).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (52 of 100) .