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) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 深海魚; 深さの範囲 125 - 1420 m (Ref. 114953). Deep-water; 67°N - 16°N, 25°W - 14°E
Eastern Atlantic: fjords of central and southern Norway, southern Iceland, around Rockall Trough in Ireland and northern Mauritania (Ref. 4426); Western and central Mediterreneann Sea (Ref. 125963).
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 200 cm TL オス/雌雄の選別がない; (Ref. 4426)
Inhabit deep slope waters (Ref. 3167), probably most common on the mid-slope (Ref. 114953). Feed on all kinds of bottom animals (Ref. 3167), mainly invertebrates and small fishes (Ref. 114953). Size possibly up to 250 cm TL (Ref. 114953). 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 18.2-26.0 cm long and 9.2-11.3 cm wide (Ref. 41251, 41309). Sizes of maturity and hatching unknown (Ref. 114953).
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). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (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))
絶滅危惧 (EN) (A2d); Date assessed: 17 April 2023
人間の用途
水産業: 興味がない
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): 2.1 - 10.8, mean 7.1 °C (based on 138 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=0.00288 (0.00136 - 0.00613), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 3.5 ±0.37 se; based on food items.
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): Very high vulnerability (90 of 100).
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栄養素 (Ref.
124155): Calcium = 2.52 [0.35, 50.19] mg/100g; Iron = 0.251 [0.024, 3.283] mg/100g; Protein = 15.3 [13.2, 17.3] %; Omega3 = 0.371 [0.154, 0.920] g/100g; Selenium = 23.3 [4.1, 104.2] μg/100g; VitaminA = 2.81 [0.20, 39.61] μg/100g; Zinc = 0.241 [0.016, 2.910] mg/100g (wet weight);