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 |
分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Myliobatiformes (Stingrays) 鰩目 (Stingrays) > Dasyatidae (Stingrays) 土魟科 (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.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
海洋; 半鹹淡水 居於水底的; 深度上下限 ? - 60 m (Ref. 114953). 熱帶
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | 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 / 年齡
簡短描述 檢索表 | 型態特徵 | 形態測量圖
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.
體盤橢圓形, 一般平坦, 它的中間葉基底寬的與略微伸出的, 它的前緣凹曲; 體盤的中央三個在體盤或尾部上覆蓋著小的心形或圓形的平坦細齒 , 沒有大刺了; 吻中等長度的, 尖銳的; 珍珠棘總是呈現與普通大的.(參考文獻 26277) 總齒列 28-41/34-50; 總計胸的動脈 113-127 。 (參考文獻 7397) 體盤與腹鰭灰褐色上方, 沒有斑點或者突出的斑紋, 腹面白色的而且沒有邊緣的深色條紋.(參考文獻 26277)
Body shape (shape guide): other; Cross section: flattened.
體盤橢圓形, 一般平坦, 它的中間葉基底寬的與略微伸出的, 它的前緣凹曲; 體盤的中央三個在體盤或尾部上覆蓋著小的心形或圓形的平坦細齒 , 沒有大刺了; 吻中等長度的, 尖銳的; 珍珠棘總是呈現與普通大的.(參考文獻 26277) 總齒列 28-41/34-50; 總計胸的動脈 113-127 。 (參考文獻 7397) 體盤與腹鰭灰褐色上方, 沒有斑點或者突出的斑紋, 腹面白色的而且沒有邊緣的深色條紋.(參考文獻 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).
進入潟湖與河口。 (參考文獻 7397) 卵胎生的.(參考文獻 50449)
進入潟湖與河口。 (參考文獻 7397) 卵胎生的.(參考文獻 50449)
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
主要參考資料
上傳您的推薦信 | 參考文獻 | 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
對人類具威脅
無害處的
人類使用
FAO - Publication: search | FishSource |
更多資訊
解剖學
鰓區
腦部
耳石
鰓區
腦部
耳石
生理學
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
遺傳學
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
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網路資源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | 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 | 樹狀分類階層 | Wikipedia: 去, 搜尋 | World Records Freshwater Fishing | 動物學的記錄
基於模型的估計
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系統發育多樣性指數 (參考文獻 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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營養階層 (參考文獻 69278) |
3.9 ±0.13 se; based on food items. |
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回復力 (參考文獻 120179) |
低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100). |
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釣魚的脆弱性 (Ref. 59153) |
Very high vulnerability (90 of 100). 🛈 |
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營養素 (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); |