أشلاق (القروش و الشفانين) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Eponymy: Deputy Assistant Commissary-General Thomas James Lempriere (1796–1852) was born in Hamburg, the son of a British banker and merchant. [...] (Ref. 128868), visit book page.
More on author: Richardson.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
بحري القاع; نطاق العمق 0 - 170 m (Ref. 6871), usually 0 - 40 m (Ref. 6871). Temperate; 37°S - 45°S, 140°E - 150°E (Ref. 114953)
Eastern Indian Ocean to southwest Pacific: endemic to Australia.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 55.0 cm TL ذكر/ مختلط الجنس; (Ref. 114953)
Occur on soft bottoms of the continental shelf (Ref. 7300, 75154). Feed on benthic fishes and crustaceans (Ref. 6871). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 4.4-6.3 cm long and 3.2-3.8 wide (Ref. 41308). Males reaches maturity at ca. 39 cm TL, females at ca. 42 cm TL; young hatch at ca. 10 cm TL (Ref. 114953).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (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)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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مؤشر التنوع الشُعبي الوراثي (مرجع 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00309 (0.00144 - 0.00663), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
4.0 ±0.67 se; based on food items. |
المرونه (مرجع 120179) |
منخفض, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 4.5-14 سنة (Fec assumed to be <100). |
ضعف الصيد (Ref. 59153) |
Moderate to high vulnerability (47 of 100). 🛈 |
المغذيات (Ref. 124155) |
Calcium = 8.5 [1.2, 148.2] mg/100g; Iron = 0.276 [0.026, 3.171] mg/100g; Protein = 16.1 [14.1, 18.1] %; Omega3 = 0.774 [0.325, 1.948] g/100g; Selenium = 10.2 [2.1, 54.9] μg/100g; VitaminA = 7.53 [0.57, 88.77] μg/100g; Zinc = 0.376 [0.026, 4.101] mg/100g (wet weight); |