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個人による観察記録の追加 Fish Watcher
| 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 radula AquaMaps Data sources: GBIF OBIS |
Upload your 写真 and ビデオ
Pictures | グーグルの画像
Raja radula
Picture by Stergiou, K.I.
Pictures | グーグルの画像
Picture by Stergiou, K.I.
分類 / Names 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).
Environment: milieu / climate zone / depth range / distribution range 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
分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri
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
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).
Life cycle and mating behavior 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).
主な参考文献
Upload your references | 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)
CITES
Not Evaluated
人間に対する脅威
Harmless
Human uses
水産業: 商業
FAO - Publication: search | FishSource | 私達の周りの海
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Population dynamics
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Anatomy
カマ
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Physiology
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酸素消費
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Body composition
Nutrients
酸素消費
水泳形態
泳ぐ速さ
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
遺伝子の
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インターネットの情報源
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Estimates based on models
Preferred temperature (Ref. 123201): 13.4 - 18.4, mean 15 °C (based on 128 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00203 - 0.00515), b=3.20 (3.07 - 3.33), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
栄養段階 (Ref. 69278): 3.7 ±0.54 se; based on food items.
回復力 (Ref. 120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (Fec=80).
Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).
Nutrients (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);