Пластиножаберные (акулы и скаты) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
экология
морской батидемерсальный; пределы глубины 300 - 400 m (Ref. 41299). Deep-water
Northwest Pacific: Japan and the East China Sea.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 120 cm TL самец/пол неопределен; (Ref. 41299)
Found on sand-mud bottoms (Ref. 41299). 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 13.0-14.6 cm long and 6.0-8.0 cm wide (Ref. 41249, 41253).
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). 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)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Preferred temperature (Ref.
123201): 0.6 - 1.2, mean 0.9 °C (based on 5 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00131 - 0.00604), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
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 (72 of 100).
Nutrients (Ref.
124155): Calcium = 7.27 [1.18, 37.13] mg/100g; Iron = 0.366 [0.086, 1.135] mg/100g; Protein = 16.5 [13.7, 19.2] %; Omega3 = 0.461 [0.135, 1.693] g/100g; Selenium = 12.6 [3.3, 42.2] μg/100g; VitaminA = 9.59 [2.22, 43.47] μg/100g; Zinc = 0.305 [0.147, 0.566] mg/100g (wet weight);
