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.
Environment: milieu / climate zone / نطاق العمق / distribution range
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).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (مرجع
123201): 13.3 - 16.5, mean 15.2 °C (based on 70 cells).
Phylogenetic diversity index (مرجع
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), 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).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
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Nutrients (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);
