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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).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 700 - 3000 m (Ref. 4449), usually 1500 - 2000 m (Ref. 4449). Deep-water; 45°N - 35°S, 98°W - 20°E
Eastern Atlantic: off Morocco, the Azores and Canary Islands and South Africa. Western Atlantic: New Jersey, USA to the Gulf of Mexico and Caribbean. The record from Davis Strait probably refers to Polyacanthonotus rissoanus.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 50.0 cm TL mannelijk / geslacht onbekend; (Ref. 4449)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 26 - 40; Dorsale zachte stralen (totaal) : 0. Off white, tan or grey in color, lateral line darker; soft rayed portion of anal dark brown (Ref. 6594). Mouth bluish in front, black behind (Ref. 6594). Opercular flap and underside of head bluish (Ref. 6594). Broad separation of the anterior and posterior nostrils. First dorsal spine well posterior to the root of the pectoral fin. Large mouth, maxillary reaching the border of spectacle and much longer preoral snout (Ref. 37108).
Found at bathyal and abyssal depths. Feeds on benthic polychaetes, cnidarians, amphipods (Ref. 4449).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Sulak, K.J., 1990. Notacanthidae. p. 133-135. 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. 4449)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 5.3, mean 4.1 °C (based on 297 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5630 [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).
Trofisch niveau (Ref.
69278): 3.2 ±0.48 se; based on food items.
Weerstandsvermogen (Ref.
120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).
