分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
Eponymy: Dr Kiyomatsu Matsubara (1907–1968) was originally called Kiyomatsu Sakamoto but on marrying he took his wife’s name as the family surname. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 120 - 2000 m (Ref. 50550). 深水域
Northwest Pacific: off northern Japan (Ref. 559) and Sea of Okhotsk (Ref. 41724).
西北太平洋: 外海的日本 (參考文獻 559) 北部與鄂霍次克海.(參考文獻 41724)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 97.0, range 89 - 105 cm
Max length : 126 cm TL 雄魚/尚未辨別雌雄; (Ref. 56527); 最大體重: 10.6 kg (Ref. 56527)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Differs from its congeners in having a dark purplish brown color at both sides of the body; eyeball as long as the spiracle; interorbital space smooth; clasper with deep cleft (Ref. 75535).
Deep-sea species (Ref. 8630). Small individuals feed on crabs and annelids, while larger ones prey on fish and cephalopods (Ref. 27640). 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 10.9-11.3 cm long and 6.5-6.7 cm wide (Ref. 41249, 41253).
深海的種.(參考文獻 8630) 小的個體吃螃蟹與環節動物而較大的一些捕食魚與頭足類動物。 (參考文獻 27640) 卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 10.9-11.3 公分長與 6.5-6.7 公分寬的.(參考文獻 41249,41253)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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).西北太平洋: 外海的日本 (參考文獻 559) 北部與鄂霍次克海.(參考文獻 41724)
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 瀕危狀態 (Ref. 130435: Version 2024-1)
無危 (LC) ; Date assessed: 29 August 2019
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 0.3 - 4.1, mean 2 °C (based on 173 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00272 - 0.00670), b=3.08 (2.95 - 3.21), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.1 ±0.72 se; based on food items.
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (76 of 100).
