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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Raja brachyura AquaMaps Data sources: GBIF OBIS |
アップロード 写真 そして ビデオ
画像 | グーグルの画像
Raja brachyura
画像によって Bergmann, M.
画像 | グーグルの画像
画像によって Bergmann, M.
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).
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 10 - 380 m (Ref. 6808). Temperate; 60°N - 22°N, 18°W - 24°E
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Eastern Atlantic: Shetland Islands to Morocco, Rio de Oro (Western Sahara), and Madeira.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 90.2, range 60 - ? cm
Max length : 120 cm TL オス/雌雄の選別がない; (Ref. 41333); 125.0 cm TL (female); 最大公表体重: 14.3 kg (Ref. 40637)
Max length : 120 cm TL オス/雌雄の選別がない; (Ref. 41333); 125.0 cm TL (female); 最大公表体重: 14.3 kg (Ref. 40637)
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 肛門の骨: 0. Upper surface wholly prickly, except in juveniles; underside only prickly along front margins of disc; orbital thorns separate; a regular median row of 40-45 thorns in juveniles and adult females, interrupted on back in males; 60-90 tooth rows; upper surface ochre, with numerous small dark spots to margins of disc, underside white (Ref. 3167).
Body shape (shape guide): other; Cross section: flattened.
Body shape (shape guide): other; Cross section: flattened.
Found on sand and sand-rock bottoms (Ref. 6808). Feed on all kinds of benthic 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). Egg capsules are 10.0-14.3 cm long and 5.8-9.0 cm wide (Ref. 41250). About 40-90 eggs are laid per individual every year (Ref. 41250).
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). Spawning mainly from February to August with at least 30 egg-cases laid (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター : McEachran, John | 協力者
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))
絶滅危惧に近い (NT) (A2bd); Date assessed: 15 April 2023
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
水産業: 少数商業の; ゲームフィッシュ: はい
FAO - 水産業: landings search; Publication: search | FishSource | 私達の周りの海
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インターネットの情報源
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モデルに基づく推定値
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系統多様性指数 (参照 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00229 (0.00147 - 0.00358), b=3.26 (3.14 - 3.38), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
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栄養段階 (参照 69278) |
3.8 ±0.61 se; based on food items. |
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回復力 (参照 120179) |
低い, ４．５年～１４年の倍増期間の最小個体群 (K=0.12-0.19; tmax=15; Fec=40). |
| Rate of population increase | Prior r = 0.20, 95% CL = 0.13 - 0.30, Based on 1 full stock assessment. |
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漁業の脆弱性 (Ref. 59153) |
High to very high vulnerability (65 of 100). 🛈 |
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気候脆弱性 (Ref. 125649) |
High vulnerability (61 of 100). 🛈 |
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価格帯 (Ref. 80766) |
Medium. |
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栄養素 (Ref. 124155) |
Calcium = 4.69 [0.73, 84.95] mg/100g; Iron = 0.26 [0.02, 2.99] mg/100g; Protein = 16.7 [13.9, 19.0] %; Omega3 = 0.869 [0.349, 2.113] g/100g; Selenium = 14.8 [3.0, 71.4] μg/100g; VitaminA = 7.7 [0.6, 90.3] μg/100g; Zinc = 0.31 [0.02, 3.43] mg/100g (wet weight); |