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> Argentiniformes (Marine smelts) > Microstomatidae (Pencil smelts)
Etymology: megalopa: Named for the extraordinarily large eye..

Environment: milieu / climate zone / depth range / distribution range Écologie

marin bathypélagique; profondeur 0 - 1300 m (Ref. 5123). Deep-water; 10°N - 20°S

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Eastern Atlantic.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 14.0 cm SL mâle / non sexé; (Ref. 5123)

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Rayons mous dorsaux (Total) : 9 - 10; Rayons mous anaux: 8 - 10; Vertèbres: 44 - 45. Branchiostegal rays 4. Eye very large, eye diameter to snout length ratio > 2 to 1 (Ref. 5123).

A specimen of 12.65 cm SL had ripe ovarian eggs (Ref. 5123).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Données manquantes (DD) ; Date assessed: 10 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 1.9 - 2.7, mean 2.5 °C (based on 618 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): 3.3 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Nansenia megalopa Kawaguchi & Butler, 1984