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Aulopiformes (Grinners) >
Alepisauridae (Lancetfishes)
Etymology: Alepisaurus: Greek, alepis, -idos = without scales + Greek, sauros = lizard (Ref. 45335); ferox: The specific name is derived from ferox, meaning ferocious (Ref. 6885).
More on author: Lowe.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; oceanodroom (Ref. 51887); diepte 0 - 1830 m (Ref. 50550). Deep-water; 84°N - 57°S, 180°W - 180°E
Circumglobal: Western Pacific (Ref. 6885, 7300); Eastern Pacific: from the Aleutian Islands to Chile, also (Ref. 2850); Western Atlantic: Gulf of Maine to the Gulf of Mexico and the Caribbean Sea, also (Ref. 7251); Eastern Atlantic (Ref. 4059). Indian Ocean (Ref. 57630). Northwest Atlantic: Canada (Ref. 5951). South China Sea and East China Sea (Ref. 74511).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 215 cm TL mannelijk / geslacht onbekend; (Ref. 7251); common length : 150 cm TL mannelijk / geslacht onbekend; (Ref. 5217); max. gepubliceerd gewicht: 9.0 kg (Ref. 42154)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 30 - 45; Anale stekels: 0; Anale zachte stralen: 13 - 18; Wervels: 47 - 52. Mouth large with two erect fangs on palatines. Dorsal fin very high, about three rays beginning with third or fourth much exerted; adipose moderate in size, over posterior part of anal insertion (Ref. 6885). Generally pale, iridescent, darker dorsally; lateral adipose keel dark; all fins dark brown or black; peritoneum black (Ref. 6885). Branchiostegal rays: 7-8 (Ref. 36025).
Mainly inhabit tropical and subtropical waters; however, during the feeding period adults may migrate to the subarctic reaching as far north as Greenland, Iceland and the Bering Sea (Ref. 51887). Epipelagic- and mesopelagic, from near the surface to below 1,000 m, sometimes approaching inshore waters (Ref. 6011). Bathypelagic (Ref. 58302). Mainly nocturnal. Feeds on fishes, cephalopods, tunicates, and crustaceans (Ref. 6011). Preyed upon by opah, sharks, albacore, yellowfin tuna, and fur seals (Ref. 6885). Oviparous, with planktonic larvae (Ref. 36025). Are synchronous hermaphrodites (Ref. 84733). Occasionally consumed but of little importance due to its soft flesh (Ref. 5217). The maximum weight given is for a 167 cm FL specimen (Ref. 42154).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Oviparous. Gonads of adolescents are hermaphroditic, but there is no proof that the species is a functional hermaphrodite (Ref. 6011). However, further studies show that this species is a synchronous hermaphrodite where gonads consist of clearly defined and well separated ovarian and testicular regions with no indication of sequential maturation of the sex products (Ref. 84733).
Post, A., 1984. Alepisauridae. p. 494-495. 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. 6011)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 14.6, mean 8.9 °C (based on 1772 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [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).
Trofisch niveau (Ref.
69278): 4.0 ±0.2 se; based on diet studies.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 13 [4, 37] mg/100g; Iron = 0.292 [0.097, 0.916] mg/100g; Protein = 16.3 [13.1, 18.8] %; Omega3 = 0.0817 [, ] g/100g; Selenium = 33.6 [10.2, 94.9] μg/100g; VitaminA = 7.96 [0.91, 66.44] μg/100g; Zinc = 0.284 [0.147, 0.569] mg/100g (wet weight);
