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Argentiniformes (Marine smelts) >
Microstomatidae (Pencil smelts)
Etymology: antarctica: Named for its region of occurrence.
Eponymy: Fridtjof Nansen (1861–1930) was a Norwegian explorer, scientist, diplomat and later recipient of the Nobel Peace Prize. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur 0 - 4145 m (Ref. 58018). Temperate
Southern Ocean: circum-Antarctic in sub-Antarctic water.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 22.0 cm SL mâle / non sexé; (Ref. 5001)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 9 - 10; Rayons mous anaux: 9 - 10; Vertèbres: 47 - 50. Branchiostegal rays 3. Pyloric caeca 7. Ratio of caudal peduncle length to depth is greater than 1.5 (Ref. 5123).
The largest specimen studied, 20.75 cm SL had matured ovaries with developing eggs (Ref. 5123).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Gon, O., 1990. Microstomatidae. p. 105-106. 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. 5001)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 1.7 - 6.4, mean 2.8 °C (based on 679 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).