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Aulopiformes (Grinners) >
Anotopteridae (Daggertooth)
Etymology: Anotopterus: Greek, a = without + Greek, noton = back + Greek, pteron = fin (Ref. 45335); pharao: pharao because of its resemblance to Egyptian kings (Ref. 6885).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 0 - 5100 m (Ref. 58018). Deep-water; 66°N - 27°S, 69°W - 1°W (Ref. 31260)
North Atlantic: from Canada (Ref. 5951), Greenland and Davis Strait, to Madeira I. and Canary Is. (Ref. 31260).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 96.0 cm SL mannelijk / geslacht onbekend; (Ref. 31260)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Anale zachte stralen: 12 - 15; Wervels: 77 - 81. In adults, head depth 23.2-26.8% of lower jaw length. Postorbital area 5.5-7.6% SL or 28.8-33.3% (less than 3 times smaller than HL). Rear edge of gill cover overlaps with the middle of the 4th vertebrae. Postadipose distance 6-7.4% SL (Ref. 31260).
Epimesopelagic species. Juveniles and fry observed exclusively within the central-circle current and its periphery; large adults caught mainly in boreal and sub-arctic waters. Feeds mainly on small and moderate-sized mesopelagic fishes; the largest Paralepis coregonoides and Arctozenus risso, had body length of 28-30 cm; a specimen caught from the southern region of Reykjanes Ridge had 12 individuals of Sebastes mentella ranging from 4.5-5 cm. Stomachs of those caught in the Mid-Atlantic Ridge have small squids (Ref. 31260).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Kukuev, E.I., 1998. Systematics and distribution in the world ocean of daggertooth fishes of the genus Anotopterus (Anotopteridae, Aulopiformes). J. Ichthyol. 38(9):716-729. (Ref. 31260)
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): 3.2 - 8.4, mean 3.9 °C (based on 759 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Trofisch niveau (Ref.
69278): 4.3 ±0.76 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming tmax>10).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (70 of 100).
