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Argentiniformes (Marine smelts) >
Microstomatidae (Pencil smelts)
Etymology: tenuicauda: Named for its slender caudal peduncle.
Eponymy: Fridtjof Nansen (1861–1930) was a Norwegian explorer, scientist, diplomat and later recipient of the Nobel Peace Prize. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur 0 - 328 m (Ref. 5123). Deep-water
Southwest Atlantic: restricted to the area near the subtropical convergence, around 40°S. High Seas only.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 8.4 cm SL mâle / non sexé; (Ref. 5123)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 10 - 11; Rayons mous anaux: 8 - 10; Vertèbres: 46. Branchiostegal rays 4. Predorsal length less than 49% SL. Slender caudal peduncle, least depth is less than 5.5.% of SL. Pyloric caeca 8 (Ref. 5123).
Body shape (shape guide): elongated; Cross section: oval.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Kawaguchi, K. and J.L. Butler, 1984. Fishes of the genus Nansenia (Microsomatidae) with descriptions of seven new species. Los Angeles County Mus. Contr. Sci. 352:1-22. (Ref. 5123)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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 (Réf. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |