Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

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

seewasser bathypelagisch; tiefenbereich 0 - 1300 m (Ref. 5123). Deep-water; 10°N - 20°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Eastern Atlantic: Ascension Island.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 14.0 cm SL Männchen/unbestimmt; (Ref. 5123)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 9 - 10; Afterflossenweichstrahlen: 8 - 10; Wirbelzahl: 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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

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)

IUCN Rote Liste Status (Ref. 130435: Version 2024-1)

Daten mangelhaft (DD) ; Date assessed: 10 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

FAO - Publication: search | FishSource |

Mehr Information

Trophic ecology
Nahrungsorganismen
Nahrungszusammensetzung
Nahrungsaufnahme
Food rations
Räuber

Ecology
Ökologie

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Längenhäufigkeiten
Mass conversion
Rekrutierung
Dichte

Life cycle
Fortpflanzung
Geschlechtsreife
Maturity/Gills rel.
Fecundity
Ablaichen
Spawning aggregations
Eier
Eientwicklung
Larven
Larven Pop.Dyn.

Distribution
Länder
FAO Gebiete
Ecosystems
Vorkommen
Einführungen
BRUVS - Videos

Anatomy
Kiemenoberfläche
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetik
Heterozygosity
Vererbbarkeit

Human related
Aquaculture systems
Aquakultur Profile
Zuchtlinien
Ciguatera cases
Stamps, coins, misc.

Outreach
Partner

Taxonomy
Namen
Synonyme
Morphologie
Morphometrie
Bilder

References
Referenzen

Tools

Zusatzinformationen

Aquarium Hälterung suchen | Art Datenblatt suchen | Aquakultur Datenblatt suchen

Download XML

Zusammenfassung | Point data | Namen | Photos

Internet Quellen

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).

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).

Nansenia megalopa Kawaguchi & Butler, 1984