Malacoraja spinacidermis (Barnard, 1923)
Soft skate
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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. |
| Malacoraja spinacidermis AquaMaps Data sources: GBIF OBIS |
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Malacoraja: Greek, malakos = soft + Latin, raja, -ae = ray, fis (Raja sp.) (Ref. 45335).
More on author: Barnard.
Etymology: Malacoraja: Greek, malakos = soft + Latin, raja, -ae = ray, fis (Raja sp.) (Ref. 45335).
More on author: Barnard.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Eastern Atlantic: Baffin Bay-Davis Strait Offshore to Iceland-Faeroe Ridge, off northwest Africa (Rio de Oro), off southern Namibia and South Africa.
東大西洋: 冰島-法羅群島的脊，外海的非洲 (里奧德奧羅) 西北部, 外海的那米比亞南部與南非。
東大西洋: 冰島-法羅群島的脊，外海的非洲 (里奧德奧羅) 西北部, 外海的那米比亞南部與南非。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
Very broad, almost pentagonal disc, light above and abruptly dark below; snout bluntly pointed with a flexible tip, eyes small and close together, and a disc with broadly rounded rear margins and tips (Ref. 5578). Small juveniles with and adults without thorns and covered only with small denticles (Ref. 5578). Slate-grey or greyish-brown above except rear margins of pectoral and pelvic fins and claspers of adult males which are dark brown; dark brown below, sometimes with light blotches (Ref. 5578). Lack of large thorns on its disc posterior to the scapular region (Ref. 6902).
Body shape (shape guide): other.
非常宽又几乎五角的体盘, 背面颜色较淡与突然下方颜色较深; 吻顿尖的具有一个柔韧有弹性的顶端, 眼小的而且靠拢在一起, 与一体盘有宽广圆形的后缘与顶端.(参考文献 5578) 小的稚鱼有而且成鱼没有刺而且仅由小的细齿覆盖着.(参考文献 5578) 暗蓝灰色或灰褐色的上方除胸鳍的后缘，而且雄性成鱼的腹鳍与扣紧物那是深褐色的; 腹面深褐色, 有时有淡的斑块.(参考文献 5578) 缺乏大的刺在它的体盘在肩胛区域后面.(参考文献 6902)
Body shape (shape guide): other.
非常宽又几乎五角的体盘, 背面颜色较淡与突然下方颜色较深; 吻顿尖的具有一个柔韧有弹性的顶端, 眼小的而且靠拢在一起, 与一体盘有宽广圆形的后缘与顶端.(参考文献 5578) 小的稚鱼有而且成鱼没有刺而且仅由小的细齿覆盖着.(参考文献 5578) 暗蓝灰色或灰褐色的上方除胸鳍的后缘，而且雄性成鱼的腹鳍与扣紧物那是深褐色的; 腹面深褐色, 有时有淡的斑块.(参考文献 5578) 缺乏大的刺在它的体盘在肩胛区域后面.(参考文献 6902)
A very rare species inhabiting continental slopes and probably down to the abyssal plains (Ref. 3167). Benthic (Ref. 58426). Adults usually at depths greater than 1,500 m while juveniles are mainly taken from about 450 m downward (Ref. 4426). Minimum depth reported taken from Ref. 4426. Feeds on crustaceans (Ref. 58426). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). This species is occasionally captured as by-catch (Ref. 117245).
一个非常稀有的种居住于大陆斜坡而且可能向下至深海平原.(参考文献 3167) 在深度大于成鱼通常 1,500 公尺而稚鱼主要是取自大约 450 公尺向下的.(参考文献 4426) 最小深度报告取自参考文献 4426. 卵生的.(参考文献 50449) 卵在贝壳上有像触角一样的突出。 (参考文献 205)
一个非常稀有的种居住于大陆斜坡而且可能向下至深海平原.(参考文献 3167) 在深度大于成鱼通常 1,500 公尺而稚鱼主要是取自大约 450 公尺向下的.(参考文献 4426) 最小深度报告取自参考文献 4426. 卵生的.(参考文献 50449) 卵在贝壳上有像触角一样的突出。 (参考文献 205)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous (Ref. 3167). Paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).東大西洋: 冰島-法羅群島的脊，外海的非洲 (里奧德奧羅) 西北部, 外海的那米比亞南部與南非。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 : McEachran, John | 合作者
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
对人类的威胁
无害处的
人类利用
渔业: 没有兴趣
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基于模型的估算
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系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00309 (0.00144 - 0.00663), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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营养阶层 (参考文献 69278) |
3.8 ±0.61 se; based on food items. |
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回复力 (参考文献 120179) |
低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100). |
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渔业脆弱性 (Ref. 59153) |
Moderate to high vulnerability (51 of 100). 🛈 |
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营养素 (Ref. 124155) |
Calcium = 9.46 [1.70, 47.25] mg/100g; Iron = 0.362 [0.086, 1.103] mg/100g; Protein = 16.6 [13.7, 19.2] %; Omega3 = 0.61 [0.18, 2.41] g/100g; Selenium = 14.7 [3.9, 48.4] μg/100g; VitaminA = 7.61 [1.88, 30.80] μg/100g; Zinc = 0.341 [0.168, 0.630] mg/100g (wet weight); |