Environment: milieu / climate zone / depth range / distribution range
экология
морской демерсальный; пределы глубины 220 - 1100 m (Ref. 114953). Temperate; 42°N - 21°N, 119°E - 146°E (Ref. 114953)
Northwest Pacific: Japan and Taiwan.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 69.3 cm TL самец/пол неопределен; (Ref. 94813)
Inhabits shelf edges to about 1000 m (Ref. 41299). Ovoviviparous (Ref. 50449). Maturity size of males at ca. 68 cm TL; birth size at ca. 20 cm TL (Ref. 114953). Reported to be infrequently captured as by-catch, but of no commercial importance (Ref. 94813).
Life cycle and mating behavior
половая зрелость | размножение | нерест | икра | Fecundity | личинки
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Mould, B., 1994. A world list of rays. The scientific nomenclature and distribution of the recent Batoidea (Batoidea, Elasmobranchii, Chondrichthyes). University of Nottingham, [UK]. 82 p. (Ref. 8630)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-1)
Угроза для людей
Harmless
Использование человеком
рыболовство: интереса не представляет
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00665 - 0.03288), b=2.96 (2.77 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.6 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): очень низкий, минимальное время удвоения популяции более 14 лет (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).