أشلاق (القروش و الشفانين) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع; نطاق العمق 81 - 313 m (Ref. 27092). Temperate; 40°S - 56°S, 74°W - 55°W
Southeast Pacific and Southwest Atlantic: Valdivia and Estrecho de Magallanes (Chile) to Argentina and the Falkland Islands.
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 103 cm TL ذكر/ مختلط الجنس; (Ref. 119547); أعلا وزن تم نشرة: 10.7 kg (Ref. 119547)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)
IUCN Red List Status (Ref. 130435)
استخدامات بشرية
مزيد من المعلومات
المتعاونينصورStamps, Coins Misc.اصواتالتسمم باكل السمكسرعةنوع السباحةمنطقة الخياشيمعظمة الأذندماغرؤية
أدوات
تقارير خاصة
Download XML
مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 8, mean 6 °C (based on 159 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.1 ±0.59 se; based on food items.
المرونه (Ref.
120179): منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 6.32 [0.98, 112.39] mg/100g; Iron = 0.274 [0.026, 3.186] mg/100g; Protein = 14.7 [13.2, 16.5] %; Omega3 = 0.7 [0.3, 1.8] g/100g; Selenium = 11.4 [2.3, 56.0] μg/100g; VitaminA = 12.9 [1.0, 162.0] μg/100g; Zinc = 0.352 [0.024, 3.890] mg/100g (wet weight); based on
nutrient studies.