أشلاق (القروش و الشفانين) (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع; نطاق العمق 10 - 35 m (Ref. 116153). Tropical
Southeast Pacific: Colombia and Ecuador.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 16.5 cm TL ذكر/ مختلط الجنس; (Ref. 116153); 33.0 cm TL (female); أعلا وزن تم نشرة: 54.90 g (Ref. 116153); أعلا وزن تم نشرة: 54.90 g
Collected from shallow and sandy bottom area. The 33 cm TL pregnant female has a total of 12 embryos with 2 females and 10 males, measuring between 6.2 and 6.8 cm TL (Ref. 116153). Males mature at ca. 18 cm TL (Ref. 114953).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Eschmeyer, W.N. (ed.), 2003. Catalog of fishes. Updated database version of March 2003. Catalog databases as made available to FishBase in March 2003. (Ref. 46206)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
أدوات
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 26.8 - 27.3, mean 27.1 °C (based on 12 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).
