Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية التغذية و المعيشة; نطاق العمق 150 - 400 m (Ref. 6181). Tropical; 37°N - 37°S, 180°W - 180°E (Ref. 6181)
Atlantic Ocean: Walvis Ridge, off Puerto Rico and Uruguay. Indian Ocean: off western Australia. Pacific Ocean: off New Guinea, southern Japan, Midway Island, California, Nazca and Sala y Gomez Ridge.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 250 cm SL ذكر/ مختلط الجنس; (Ref. 9351); common length : 200 cm SL ذكر/ مختلط الجنس; (Ref. 9351)
الأشعة الظهرية الناعمة (المجموع) : 116 - 123; شوكة شرجية: 2; أشعه شرجية لينه: 74 - 87; فقرات: 125 - 129. Body very elongate and compressed. Head profile straight or scarcely convex, with sagittal crest strongly elevated. Both jaws have a short dermal process; the lower jaw longer than the upper jaw. The dorsal fin has a few weak anterior spines that hardly differ from the soft rays. Body color silvery, dorsal fin membrane black before the third to the fourth soft ray.
Probably benthopelagic from 150 to 400 m, juveniles epipelagic or mesopelagic. Feeds on fishes (including Engraulis mordax and Merluccius productus off California) and squids. Occasionally hooked, captured in nets, or found washed ashore. No special fishery.
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
مصائد: مصائد تستهلك محلينا
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 10 - 20.6, mean 14.7 °C (based on 279 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00052 (0.00021 - 0.00129), b=3.13 (2.92 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.5 ±0.69 se; based on food items.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 38.5 [17.7, 76.0] mg/100g; Iron = 0.632 [0.313, 1.202] mg/100g; Protein = 17.7 [16.1, 19.3] %; Omega3 = 0.147 [0.071, 0.331] g/100g; Selenium = 142 [65, 340] μg/100g; VitaminA = 15 [4, 53] μg/100g; Zinc = 0.578 [0.385, 0.925] mg/100g (wet weight);
