Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển Tầng nổi biển sâu; Mức độ sâu 0 - 4580 m (Ref. 58302), usually 1200 - 2000 m (Ref. 32364). Deep-water; 55°N - 20°S, 180°W - 180°E
Circumglobal: In tropical to temperate waters. North of about 20°S; except Mediterranean Sea and eastern Central Pacific. NorthEast Pacific: Queen Charlotte Islands, British Colombia, Canada to central Mexico, including the Gulf of California (Ref. 32364).
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm TL con đực/không giới tính; (Ref. 96339)
Các tia vây lưng cứng (tổng cộng) : 0; Các vây lưng mềm (tổng cộng) : 300; Tia cứng vây hậu môn: 0. Dorsal fin with up to 350 rays; caudal much reduced, linear; anal fin rays 265-270 or more; pectorals small (Ref. 6885). Uniform dusky brown, except jaws, pectoral fins, and lower abdomen which are paler (Ref. 6885). Strong sexual dimorphism (Ref. 3247).
Meso- and bathypelagic (Ref. 58302). Feed on crustaceans (Ref. 3247). Oviparous, with planktonic leptocephali (Ref. 32364). Degenerative changes in males and females suggest semelparity (Ref. 32364). Minimum depth reported taken from Ref. 86942.
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Smith, D.G., 1990. Nemichthyidae. p. 199-202. 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. 4456)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: không ích lợi (thú vị)
Các công cụ
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 2.2 - 5.6, mean 3.6 °C (based on 1847 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5645 [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).
Mức dinh dưỡng (Ref.
69278): 3.5 ±0.50 se; based on food items.
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (Assuming tmax>10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).