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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; bathypelagic; depth range 500 - 600 m (Ref. 36163). Deep-water; 42°N - 41°N, 2°E - 3°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Mediterranean Sea: Off Blanes.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 25.0 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 46. Branchiostegal rays 4. Adipose fin pigmented at the base. Body generally brown (Ref. 41397).

Also mesopelagic. Three specimens known (2 females, 1 damaged) (Ref. 36163).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Matallanas, J., 1986. Nansenia iberica, a new species of Microstomatidae (Pisces, Salmoniformes). Cybium 10(2):193-198. (Ref. 36163)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 14 March 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

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).

Trophic level (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (21 of 100).

Nansenia iberica Matallanas, 1985