Nessorhamphus ingolfianus  (Schmidt, 1912)

Duckbill oceanic eel
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Image of Nessorhamphus ingolfianus (Duckbill oceanic eel)
Nessorhamphus ingolfianus
Picture by Dolgov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 0 - 1800 m (Ref. 58018).   Deep-water

Distribution Countries | FAO areas | Ecosystems | 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.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 59.8 cm TL male/unsexed; (Ref. 13608)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 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).

Biology     Glossary (e.g. epibenthic)

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

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

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 115185)

  Least Concern (LC) 

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 1 - 14.5, mean 7.8 (based on 1032 cells).
Phylogenetic diversity index (Ref. 82805):  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).
Trophic Level (Ref. 69278):  3.5   ±0.50 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (47 of 100) .