Fontitrygon margaritella (Compagno & Roberts, 1984)
Pearl stingray
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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. |
| Fontitrygon margaritella 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) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: margaritella: Named for the smaller size of this stingray and of its pearl (Latin: margarita) spine, as compared to Dasyatis margarita (Ref. 26277).
Eponymy: Margaritella is the diminutive of Margarita and is used to show this species is smaller than its relative (see Margarita above). The vernacular name is not only used to convey ‘Little Pearl’ but to reflect the fact that this species has a pearl spine. (Ref. 128868), visit book page.
More on authors: Compagno & Roberts.
Etymology: margaritella: Named for the smaller size of this stingray and of its pearl (Latin: margarita) spine, as compared to Dasyatis margarita (Ref. 26277).
Eponymy: Margaritella is the diminutive of Margarita and is used to show this species is smaller than its relative (see Margarita above). The vernacular name is not only used to convey ‘Little Pearl’ but to reflect the fact that this species has a pearl spine. (Ref. 128868), visit book page.
More on authors: Compagno & Roberts.
Taxonomic Remarks
Distribution will be corrected.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
海洋; 半咸淡水 居于水底的; 深度上下限 ? - 60 m (Ref. 114953). 熱帶
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Eastern Central Atlantic: West African coast from Cape Blanc in Mauritania to Angola (Ref. 7397, 81259, 81625, 114953). Often confused with Dasyatis margarita (Günther, 1870) (Ref. 7397).
中東大西洋: 外海的白鼻角到安哥拉。 時常與 珠粒魟〔Dasyatis margarita〕 (Gunther,1870) 互相混淆。 (參考文獻 7397)
中東大西洋: 外海的白鼻角到安哥拉。 時常與 珠粒魟〔Dasyatis margarita〕 (Gunther,1870) 互相混淆。 (參考文獻 7397)
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
脊椎骨: 116 - 128. Diagnosis: Dasyatis margaritella is the smallest dasyatid in West Africa (Ref. 26277). It is most similar to Dasyatis margarita, which is larger and has a larger pearl spine, and more numerous pectoral radials, 133-135 vs. 116-127 in D. margaritella (Ref. 26277). It is also similar to D. garouaensis, which has a much flatter disc and a longer snout (Ref. 26277).
Body shape (shape guide): other; Cross section: flattened.
体盘椭圆形, 一般平坦, 它的中间叶基底宽的与略微伸出的, 它的前缘凹曲; 体盘的中央三个在体盘或尾部上覆盖着小的心形或圆形的平坦细齿 , 没有大刺了; 吻中等长度的, 尖锐的; 珍珠棘总是呈现与普通大的.(参考文献 26277) 总齿列 28-41/34-50; 总计胸的动脉 113-127 。 (参考文献 7397) 体盘与腹鳍灰褐色上方, 没有斑点或者突出的斑纹, 腹面白色的而且没有边缘的深色条纹.(参考文献 26277)
Body shape (shape guide): other; Cross section: flattened.
体盘椭圆形, 一般平坦, 它的中间叶基底宽的与略微伸出的, 它的前缘凹曲; 体盘的中央三个在体盘或尾部上覆盖着小的心形或圆形的平坦细齿 , 没有大刺了; 吻中等长度的, 尖锐的; 珍珠棘总是呈现与普通大的.(参考文献 26277) 总齿列 28-41/34-50; 总计胸的动脉 113-127 。 (参考文献 7397) 体盘与腹鳍灰褐色上方, 没有斑点或者突出的斑纹, 腹面白色的而且没有边缘的深色条纹.(参考文献 26277)
Dasyatis margaritella is the most common littoral stingray on the West African coast and it enter lagoons, shallow bays and estuaries (Ref. 7397, 81259). Most likely feeds on small invertebrates (Ref. 114953). Ovoviviparous (Ref. 50449).
进入泻湖与河口。 (参考文献 7397) 卵胎生的.(参考文献 50449)
进入泻湖与河口。 (参考文献 7397) 卵胎生的.(参考文献 50449)
生命周期和交配行为 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). Distinct pairing with embrace (Ref. 205).中東大西洋: 外海的白鼻角到安哥拉。 時常與 珠粒魟〔Dasyatis margarita〕 (Gunther,1870) 互相混淆。 (參考文獻 7397)
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
Séret, B., 2003. Dasyatidae. p. 81-96. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Collection Faune et Flore Tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81259)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
FAO - Publication: search | FishSource |
更多信息
解剖学
鳃区
大脑
耳石
鳃区
大脑
耳石
生理学
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
遗传学
基因组
遗传学
异质性
遗传率
基因多样性
基因组
遗传学
异质性
遗传率
基因多样性
工具
特别资料
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网络资源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: 属, 种 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | 动物学的记录
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.01023 (0.00486 - 0.02155), b=3.06 (2.86 - 3.26), 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) |
3.9 ±0.13 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 (Assuming fecundity<100). |
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渔业脆弱性 (Ref. 59153) |
Very high vulnerability (90 of 100). 🛈 |
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营养素 (Ref. 124155) |
Calcium = 63.4 [13.9, 304.2] mg/100g; Iron = 0.84 [0.21, 2.38] mg/100g; Protein = 21.7 [18.8, 24.8] %; Omega3 = 0.222 [0.061, 0.662] g/100g; Selenium = 27.6 [8.0, 80.2] μg/100g; VitaminA = 34.4 [12.4, 91.8] μg/100g; Zinc = 1.38 [0.67, 2.66] mg/100g (wet weight); |