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Notacanthiformes (Halosaurs and deep-sea spiny eels) >
Notacanthidae (Deep-sea spiny eels)
Etymology: Polyacanthonotus: Greek, poly = a lot of + Greek, akantha = thorn + Greek,noton = back (Ref. 45335); challengeri: Named after the H.M.S. Challenger (Ref. 6885).
Eponymy: ‘HMS Challenger’ was a deep-sea research vessel, famous for the Challenger Expedition (1872–1876) which contributed hugely to oceanography and led to the discovery of over 4,000 previously unknown species. (Ref. 128868), visit book page.
More on author: Vaillant.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser bathypelagisch; tiefenbereich 777 - 4560 m (Ref. 50610), usually 2000 - 3000 m (Ref. 6728). Deep-water; - 50°S
North Pacific: Japan, Bering Sea and British Columbia, Canada (Ref. 6885), also south to Oregon, USA (Ref. 35578). South Pacific: known form one specimen collected near New Zealand. Southeast Atlantic: South Africa. Southern Ocean: known from one specimen collected near the Kerguelen Islands. Mainly antitropical (Ref. 5165) but reported from Azores, Canary Islands and Morocco (Ref. 6728).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 60.0 cm TL Männchen/unbestimmt; (Ref. )
Rückenflossenstacheln (insgesamt) : 32 - 35; Rückenflossenweichstrahlen (insgesamt) : 0; Wirbelzahl: 242 - 244. Caudal fin very small; anal fin with 161-162 rays altogether, 26-35 of which are spines, long, low, confluent with caudal; pectorals with a fleshy base (Ref. 6885). Cream to faintly pink, possibly with light brown markings; black on posterior margins of anal and caudal fins; black on posterior edge of gill cover, lining of mouth and gill chamber, and parts of peritoneum (Ref. 6885).
Body shape (shape guide): eel-like.
Feeds on benthic invertebrates, especially amphipods, polychaetes and mysids (Ref. 6728).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Gon, O., 1990. Notacanthidae. p. 100-101. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5165)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Bevorzugte Temperatur (Ref.
123201): 1.5 - 3.4, mean 2.4 °C (based on 2854 cells).
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5626 [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).
Trophische Ebene (Ref.
69278): 3.2 ±0.42 se; based on food items.
Widerstandsfähigkeit (Ref.
120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming tmax>10).
Anfälligkeit der Fischerei (Ref.
59153): Moderate vulnerability (44 of 100).
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