Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
بحري القاع; نطاق العمق 15 - 400 m (Ref. 6763). Subtropical; 62°N - 16°N, 19°W - 37°E
Eastern Atlantic and Mediterranean Sea.
Length at first maturity / الحجم / وزن / العمر
النضج: Lm 15.8, range 17 - 18 cm
Max length : 56.4 cm TL ذكر/ مختلط الجنس; (Ref. 86700); common length : 22.0 cm TL ذكر/ مختلط الجنس; (Ref. 3397); أعلا وزن تم نشرة: 940.00 g (Ref. 40637)
The shoulder spines can inflict, painful stings. Usually found buried in the sand or mud. Equipped with an acoustic apparatus that generates both acoustic and electric pulses. Electric discharge activity shows two temporal patterns: 1) reflexive discharges of short duration (milliseconds), elicited by mechanical stimulation, and 2) those of much longer duration (several seconds) observed only during the summer spawning period (Ref. 10011). Low-frequency spontaneous discharge activity (5-10 Hz), with a sexual dimorphism in discharge amplitude is also said to exist. This species suggestively represents a transitional form in the evolution of electric organs in fishes (Ref. 10577). Oviparous, eggs, larvae and juveniles are pelagic (Ref. 6763). Utilized fresh (Ref. 9987).
Roux, C., 1990. Uranoscopidae. p. 897-898. 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. 2. (Ref. 7366)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
مصائد: غير مهمة تجارياً; لعبة سمكه: نعم
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (مرجع
123201): 11.2 - 17, mean 14.2 °C (based on 228 cells).
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00979 - 0.01477), b=3.04 (2.98 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
مستوى غذائي (مرجع
69278): 4.4 ±0.70 se; based on food items.
Generation time: 7.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (tm=2; K=0.1-0.2).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).
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Nutrients (Ref.
124155): Calcium = 69.2 [40.3, 127.0] mg/100g; Iron = 1.04 [0.66, 1.74] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.445 [0.303, 0.666] g/100g; Selenium = 30.9 [15.8, 60.3] μg/100g; VitaminA = 26.2 [9.2, 80.2] μg/100g; Zinc = 0.603 [0.430, 0.869] mg/100g (wet weight); based on
nutrient studies.
