分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (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: Reverend Alfred Edmund Eaton (1845–1929) was an English explorer, entomologist and naturalist who published many scientific papers (1860s–1920). [...] (Ref. 128868), visit book page.
More on author: Günther.
Taxonomic Remarks
The large sequence divergences among B. eatonii from the Kerguelen Plateau and from the South Atlantic-Ross Sea provide evidence for two species in these regions. The species, referred to as Bathyraja sp. (cf. eatonii) from the Antarctic continental shelf and slope is a species distinct from B. eatonii. from the Kerguelen Plateau (the type locality) and thus is a new and undescribed species until it is formally described and named (Ref. 93260).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の. Polar; 48°S - 78°S, 180°W - 180°E
Southern Ocean: common on the Kerguelen Plateau, around South Orkney and South Shetland islands. In the Antarctic Peninsula, it occurs in the northeastern Weddell Sea and on Gunnerus Ridge. A single record comes from the Pacific Ocean sector, in the Ross Sea. Southeast Pacific: Chile (Ref. 9068).
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 100.0 cm TL オス/雌雄の選別がない; (Ref. )
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). 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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 商業
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
好ましい温度 (参照
123201): -1.8 - 2, mean -0.9 °C (based on 119 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00296 - 0.01067), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 4.0 ±0.7 se; based on size and trophs of closest relatives
回復力 (参照
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (Fec assumed to be <100).
漁業の脆弱性 (Ref.
59153): High vulnerability (60 of 100).
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気候脆弱性 (Ref.
125649): High to very high vulnerability (71 of 100).
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栄養素 (Ref.
124155): Calcium = 3.36 [0.52, 69.22] mg/100g; Iron = 0.296 [0.028, 3.977] mg/100g; Protein = 14.2 [12.5, 16.1] %; Omega3 = 0.411 [0.155, 1.082] g/100g; Selenium = 16.7 [3.0, 76.3] μg/100g; VitaminA = 8.07 [0.55, 107.21] μg/100g; Zinc = 0.232 [0.015, 2.709] mg/100g (wet weight);