Пластиножаберные (акулы и скаты) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Beringraja: Named for the Bering Sea, though to be the origin of the two species in this genus..
Environment: milieu / climate zone / depth range / distribution range
экология
морской демерсальный; мигрирует в океане (Ref. 51243); пределы глубины 5 - 120 m (Ref. 58497), usually 5 - 30 m (Ref. 114953). Temperate; 28°N - 50°N, 119°E - 150°E (Ref. 114953)
Northwest Pacific: Japan, Sea of Okhotsk and the East China Sea.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 115 cm TL самец/пол неопределен; (Ref. 114953)
Commonly found near coast. Demersal on inner continental shelf. Feeds mainly on fishes, crustaceans and cephalopods (Ref. 114953). 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 14.5-16.0 cm long and 7.0-7.5 cm wide (Ref. 41249, 41253, 41298). Males reaches maturity at ca. 47 cm TL, females at ca. 69 cm TL; young hatch at 9-10 cm TL (Ref. 114953).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
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)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
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Estimates based on models
Preferred temperature (Ref.
123201): 5.5 - 22.3, mean 16.8 °C (based on 53 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00162 - 0.00491), b=3.26 (3.12 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.4 ±0.7 se; based on diet studies.
устойчивость к внешним воздействиям (Ref.
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (69 of 100).