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Alepocephaliformes (Slickheads and tubeshoulders.) >
Platytroctidae (Tubeshoulders)
Etymology: Normichthys: Because of John Roxburgh Norman, British ichthyiologist 1898-1944 (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 780 - 5000 m (Ref. 119426), usually ? - 1000 m (Ref. 4461). Deep-water; 66°N - 18°S, 77°W - 15°E
Eastern Atlantic: Iceland and western part of British Isles to Portugal including Azores Island (northern and western boundaries apparently following the 1,000 m isotherm for 4°C and the southern boundary for 5°C); and from the Canary Islands to Senegal, Gulf of Guinea and Angola (Ref. 4461).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 16.4 cm TL mannelijk / geslacht onbekend; (Ref. 5951)
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Quéro, J.-C., T. Matsui, R.H. Rosenblatt and Y.I. Sazonov, 1984. Searsiidae. p. 256-267. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 6682)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 2.7 - 6.3, mean 3.9 °C (based on 16 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 38.1 [11.0, 183.9] mg/100g; Iron = 0.691 [0.203, 2.242] mg/100g; Protein = 3.39 [0.00, 7.42] %; Omega3 = 0.332 [0.100, 1.131] g/100g; Selenium = 18.4 [5.1, 77.1] μg/100g; VitaminA = 14.3 [1.9, 99.2] μg/100g; Zinc = 0.764 [0.341, 1.908] mg/100g (wet weight);
