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> Anguilliformes (Eels and morays) > Derichthyidae (Longneck eels)
Etymology: Nessorhamphus: Greek, nessa, netta = duck + Greek, rhamphos = bill, peak (Ref. 45335).

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

marin bathypélagique; profondeur 0 - 1800 m (Ref. 58018). Deep-water

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

Eastern Atlantic: France to Morocco; off the Cape, South Africa (Ref. 6592). Also known from temperate and subtropical latitudes of the western Atlantic, southwestern Indian, and southwest Pacific.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 60.0 cm TL mâle / non sexé; (Ref. 123983)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Épines anales: 0. Dark brown in color (Ref. 6592). Snout long, depressed, and spatulate in form; lateral line distinct; pectoral fin long, subequal to snout; dorsal and anal fin rays abruptly become shorter near tip of tail and once again become longer, so it appears an independent caudal fin is present (Ref. 13608).

Mesopelagic (Ref. 5951). Feeds mainly on crustaceans.

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

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Smith, D.G., 1990. Derichthyidae. p. 193-194. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 5228)

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

Préoccupation mineure (LC) ; Date assessed: 11 January 2011

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 - 14.5, mean 7.8 °C (based on 1032 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.8750 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.5 ±0.50 se; based on food items.

Résilience (Ref. 120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming tmax>10).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (44 of 100).

Nutrients (Ref. 124155): Calcium = 26.4 [9.0, 58.4] mg/100g; Iron = 0.303 [0.134, 0.816] mg/100g; Protein = 18 [16, 21] %; Omega3 = 0.176 [0.058, 0.544] g/100g; Selenium = 22.3 [7.8, 62.8] μg/100g; VitaminA = 19.8 [2.3, 158.1] μg/100g; Zinc = 0.516 [0.280, 1.006] mg/100g (wet weight);

Nessorhamphus ingolfianus (Schmidt, 1912)