Teleostei (teleosts) >
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
Ecology
Marine; pelagic-oceanic; depth range ? - 458 m (Ref. 58018). Subtropical
Western Indian Ocean: off Natal; also from west of Cape Peninsula in South Africa. The taxonomy of Nansenia is confused and the precise range of this species is difficult to define.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 3978)
Mesopelagic species.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cohen, D.M., 1986. Argentinidae. p. 215-216. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3978)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 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). |
Trophic level (Ref. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |