分類 / 名稱
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).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 居於水底的; 深度上下限 20 - 1110 m (Ref. 50550). 溫帶
Northwest Pacific: Sea of Okhotsk off Hokkaido, Japan to the Kamchatka Peninsula.
西北太平洋: 鄂霍次克海外海的日本北海道到堪察加半島。
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 68.5, range 61 - 76 cm
Max length : 102 cm TL 雄魚/尚未辨別雌雄; (Ref. 52075)
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 8.5 cm long and 6.7 cm wide (Ref. 41249).
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 8.5 公分長與 6.7 公分寬的.(參考文獻 41249)
生命週期和交配行為
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).西北太平洋: 鄂霍次克海外海的日本北海道到堪察加半島。
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 2025-2 (Global))
無危 (LC) ; Date assessed: 29 August 2019
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基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00468 (0.00318 - 0.00688), b=3.05 (2.93 - 3.17), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.5 ±0.48 se; based on food items. |
回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100). |
釣魚的脆弱性 (Ref. 59153) |
High to very high vulnerability (67 of 100). 🛈 |