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> Argentiniformes (Marine smelts) > Microstomatidae (Pencil smelts)
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 - 1400 m (Ref. 5123). Deep-water; 66°N - 35°N

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North Atlantic: off southern Iceland eastward and southward to about 35°N. One record is from western Greenland and two are from North America to 40°N. Western Indian Ocean: South Africa, near Zanzibar, and Maldives (Ref. 26165).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 24.5 cm SL mâle / non sexé; (Ref. 4773)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 9 - 10; Rayons mous anaux: 8 - 10; Vertèbres: 42 - 45. Adults silvery. Ventral fins inserted ahead of dorsal fin. Dorsal fin inserted in front of the midpoint of the body. Stomachs and peritoneum coated with dark pigment (Ref. 37473). Branchiostegal rays 3. Pyloric caeca 7-8.

Spawns mainly in spring and early summer.

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Cohen, D.M., 1984. Argentinidae (including Microstomatidae). p. 386-391. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean, Volume 1. Unesco, Paris. (Ref. 4773)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

Préoccupation mineure (LC) ; Date assessed: 09 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

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Estimates based on models

Preferred temperature (Ref. 123201): 2.1 - 10.7, mean 7.3 °C (based on 278 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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): 3.4 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (20 of 100).

Nansenia groenlandica (Reinhardt, 1840)