Issue
This species is often confused with Nezumia sclerorhynchus (Valenciennes, 1838).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري قاعية التغذية و المعيشة; غير مهاجرة; نطاق العمق 200 - 2320 m (Ref. 3587), usually 200 - 1000 m (Ref. 2683). Deep-water; 70°N - 12°S, 98°W - 30°E (Ref. 1371)
Atlantic Ocean: Eastern Atlantic: Faroe Bank to northern Angola and the Mediterranean Sea. Western Atlantic: Davis Straits to northern Brazil.
Length at first maturity / الحجم / وزن / العمر
Maturity: Lm 4.5, range 4 - ? cm
Max length : 36.0 cm TL ذكر/ مختلط الجنس; (Ref. 3587); common length : 25.0 cm TL ذكر/ مختلط الجنس; (Ref. 2683); العمر: 9 سنين (Ref. 58045)
الأشواك الظهرية (المجموع) : 2; شوكة شرجية: 0. Head short, completely scaled except for naked strip on the ventral surface of the snout; Eyes relatively large, 29 to 42% of head length; snout short, pointed; chin barbel very short. Body scales with lanceolate to shield-shaped spinules. Overall color is bluish to violet, head somewhat tawny to swarthy; ventral portions silvery when fresh; pelvic fins black except outermost ray which is pale to white; oral cavity grayish; branchial cavity mostly black.
Feeds on benthic as well as pelagic animals like mysids, amphipods, small shrimps, copepods, isopods, ostracods and polychaete worms (Ref. 6187).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: غير مهمة تجارياً
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 15.7, mean 9.3 °C (based on 786 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00186 (0.00113 - 0.00306), b=3.12 (2.97 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.3 ±0.1 se; based on diet studies.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
Nutrients (Ref.
124155): Calcium = 21.3 [10.3, 49.2] mg/100g; Iron = 0.34 [0.16, 0.70] mg/100g; Protein = 15.9 [14.1, 17.5] %; Omega3 = 0.248 [0.102, 0.566] g/100g; Selenium = 26.9 [9.5, 68.2] μg/100g; VitaminA = 16.6 [3.0, 84.1] μg/100g; Zinc = 0.505 [0.312, 0.823] mg/100g (wet weight);
