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: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の; 深さの範囲 ? - 300 m (Ref. 4426). Subtropical; 46°N - 30°N, 8°W - 36°E
Eastern Atlantic: known only from the Mediterranean but may penetrate through the Strait of Gibraltar and possibly to northern Morocco. Some Atlantic records probably misidentifications of Raja naevus and/or Raja africana.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 70.0 cm TL オス/雌雄の選別がない; (Ref. 4426)
Range from coastal waters to about 300 m depth (Ref. 3167). Feed on all kinds of bottom animals (Ref. 3167). 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). About 80-154 eggs are laid by an individual in a year (Ref. 41305).
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). Spawns throughout the year with maximum number of egg-cases laid in late spring and summer, embryos developing in about 4 months (Ref. 3167). 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) (A4b); Date assessed: 25 March 2016
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
系統多様性指数 (参照 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=0.00339 (0.00215 - 0.00535), b=3.19 (3.06 - 3.32), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.7 ±0.54 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=80). |
漁業の脆弱性 (Ref. 59153) |
Moderate to high vulnerability (50 of 100). 🛈 |
価格帯 (Ref. 80766) |
Medium.
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栄養素 (Ref. 124155) |
Calcium = 27.4 [5.4, 126.2] mg/100g; Iron = 0.815 [0.213, 2.369] mg/100g; Protein = 18.6 [15.3, 21.6] %; Omega3 = 0.723 [0.220, 2.585] g/100g; Selenium = 24.6 [7.1, 73.7] μg/100g; VitaminA = 9.78 [3.77, 24.88] μg/100g; Zinc = 0.587 [0.285, 1.067] mg/100g (wet weight); |