分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 居于水底的; 深度上下限 9 - 100 m. 亞熱帶的; 42°N - 19°S, 19°W - 38°E (Ref. 114953)
Eastern Atlantic: northern Portugal to Angola, including the Mediterranean Sea.
東大西洋: 葡萄牙到安哥拉北部, 包括地中海。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 158.5, range 153 - 164 cm
Max length : 242 cm TL 雄鱼/尚未辨别雌雄; (Ref. 40637); common length : 150 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3710); 最大体重: 49.9 kg (Ref. 40637)
脊椎骨: 68 - 73. This large to very large species has a plain beige to brownish wedge-shaped disc; long and rather broad triangular snout with a broadly rounded rostral cartilage at its tip and wide oblique nostrils with a narrow anterior opening; disc thickened centrally, length 1.2-1.3 times its width, anterior margins slightly undulate, often weakly concave before broadly rounded outer corner; snout moderately acute, its angle 59-63°, tip narrowly rounded not extended forward as a distinct lobe; large orbit, length 5-6 times in preorbital length, 1.5-2 in interorbital space; rostral ridges are narrowly separated posteriorly and almost joined anteriorly; 2 fleshy spiracular folds, with innermost fold smaller; upper jaw with 62-72 tooth rows; large and oblique nostrils, its length 1.4 in internasal width, ca 81 nasal lamellae, anterior nasal flaps are confined to anterior margin of nostril; rough skin covered entirely with small denticles; well-developed thorns, usually along edge of rostral cartilage and small patches around orbits and above spiracles; each shoulders with 1-3 thorns that persist in adults, a median row of enlarged thorns extending from nape to first dorsal fin, a few thorns between dorsal fin; long tail ca 1.5 times its disc length; dorsal fins are large and widely spaced, ca. 2.1 times base length of first dorsal fin, apices narrowly rounded; pectoral fin radials 68-73; 204-212 total vertebrae (Ref. 114953).
嘴的脊狭窄地分开,几乎加入前面; 前面的鼻叶延伸一点点如果任何的, 后鼻盖狭窄的; 呼吸孔有两个大约相同大小的发展良好的摺层; 在呼吸孔之间,刺眼窝的内缘的周围呈现, 在肩上而且沿着体盘与尾部的中线; 上表皮褐色，腹面白色的, 但是通常在吻上的一个黑色的斑块主要在稚鱼.(参考文献 6675)
A coastal and benthic species found on sandy and muddy bottoms, intertidal zone to at least 80 m depth. Feeds mainly on benthic crustaceans and small fishes. Maximum length would probably reach up to 265 cm TL, common at about 200 cm TL. Males mature at 138-154 cm TL, females at 153-164 cm TL. In the Mediterranean Sea, males mature at smaller size, about 100-110 cm TL and females at about 110 cm TL. Size at birth about 34 cm TL. Produces litters up to 20 pups (more common 6-7 pups) (Ref. 114953). Ovoviviparous, one or two litters per year, of 4-6 embryos.
栖息于沙泥底, 从影像水到大约 100 公尺。 慢地游泳于底部之上或部份地埋藏。 吃无脊椎动物与鱼类。 卵胎生的, 一或二个胎窝每年, 4-6个胚胎。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). One or two litters per year, of 4-6 embryos (Ref. 6675).東大西洋: 葡萄牙到安哥拉北部, 包括地中海。
Bauchot, M.-L., 1987. Raies et autres batoides. p. 845-886. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identificationpour les besoins de la pêche. (rev. 1). Mèditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3261)
人类利用
渔业: 低经济; 游钓鱼种: 是的
更多信息
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 19.2 - 27.9, mean 25.4 °C (based on 94 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00145 - 0.00950), b=3.09 (2.87 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.0 ±0.70 se; based on food items.
Generation time: 5.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=4).
Fishing Vulnerability (Ref.
59153): High vulnerability (55 of 100).
Nutrients (Ref.
124155): Calcium = 17.6 [3.4, 77.4] mg/100g; Iron = 0.666 [0.174, 1.900] mg/100g; Protein = 20.1 [17.9, 22.1] %; Omega3 = 0.226 [0.098, 0.530] g/100g; Selenium = 30.9 [8.2, 84.3] μg/100g; VitaminA = 3.59 [1.33, 9.58] μg/100g; Zinc = 0.457 [0.227, 0.859] mg/100g (wet weight);
