Пластиножаберные (акулы и скаты) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Eponymy: Dr Henry Bryant Bigelow (1879–1967) was an American zoologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / пределы глубины / distribution range
экология
морской батидемерсальный; пределы глубины 650 - 4156 m (Ref. 4426), usually 1500 - ? m (Ref. 3167). Deep-water; 60°N - 10°N
Eastern Atlantic: Rockall Trough along Ireland, northern Bay of Biscay, northern Morocco and Azores, off Rio de Oro (Western Sahara) and Conakry (Guinea). Western Atlantic: Grand Banks off Newfoundland, Canada southward to northeastern Gulf of Mexico. Distribution probably much wider in deep water.
Size / Вес / Возраст
половая зрелость: Lm ? range ? - ? cm
Max length : 55.0 cm TL самец/пол неопределен; (Ref. 4426)
Found on continental slopes and deepwater rises (Ref. 3167). 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 5.3 cm long and 3.0 cm wide (Ref. 41249).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Oviparous (Ref. 3167). 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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-1)
Угроза для людей
Harmless
Использование человеком
рыболовство: bycatch
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Preferred temperature (ссылка
123201): 3.3 - 5.2, mean 3.9 °C (based on 389 cells).
Phylogenetic diversity index (ссылка
82804): PD
50 = 0.5000 [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).
Trophic level (ссылка
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (ссылка
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
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Nutrients (Ref.
124155): Calcium = 5.55 [0.81, 110.64] mg/100g; Iron = 0.332 [0.031, 4.526] mg/100g; Protein = 15 [13, 17] %; Omega3 = 0.536 [0.211, 1.385] g/100g; Selenium = 20.2 [3.3, 98.8] μg/100g; VitaminA = 4.85 [0.35, 64.69] μg/100g; Zinc = 0.307 [0.021, 3.539] mg/100g (wet weight);
![Image of Rajella bigelowi (Bigelow\](/images/thumbnails/gif/tn_Rabig_u0.gif "Image of Rajella bigelowi (Bigelow\")
