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).
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 50 - 200 m (Ref. 6808). Subtropical; 53°N - 9°N, 19°W - 36°E
Eastern Atlantic: southern Ireland and England to Senegal, including the western Mediterranean and the Canary Islands. Reported from the eastern Mediterranean (Ref. 3261).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 80.0 range ? - 85.2 cm
Max length : 100.0 cm TL オス/雌雄の選別がない; (Ref. 4426)
Found on sandy bottoms of shelf waters (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). Egg capsules are 7.2-9.0 cm long and 4.2-5.2 cm wide (Ref. 41303 , 41251, 41304).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Egg-cases laid from March to September (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)
絶滅危惧 (EN) (A2bd+3d+4bd); Date assessed: 03 September 2003
Human uses
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
Estimates based on models
Preferred temperature (Ref.
123201): 9.8 - 17.1, mean 13.2 °C (based on 157 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00196 - 0.00466), b=3.19 (3.07 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.5 ±0.37 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 assumed to be <100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (38 of 100).
Nutrients (Ref.
124155): Calcium = 11.4 [1.5, 220.4] mg/100g; Iron = 0.693 [0.064, 8.306] mg/100g; Protein = 17.2 [14.4, 19.5] %; Omega3 = 0.486 [0.222, 1.080] g/100g; Selenium = 28.1 [5.6, 137.4] μg/100g; VitaminA = 4.78 [0.40, 50.57] μg/100g; Zinc = 0.511 [0.033, 5.798] mg/100g (wet weight);
