分類 / Names
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) >
Urotrygonidae (American round stingrays)
Etymology: Urotrygon: Greek, oura = tail + Greek, trygon = a sting ray (Ref. 45335).
More on author: Schultz.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的. 熱帶
Western Central Atlantic: Gulf of Venezuela.
中西大西洋: 委內瑞拉灣。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 17.6 range ? - ? cm
Max length : 29.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 127655); 36.2 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Prickly back with a median row of slightly larger spines from the nuchal region rearward along disc and anterior part of tail. Wide disc and tail long. Plain greyish above, without markings, cream colored below (Ref. 6902).
多刺的背面中央有一列略大的棘從頸背的區域向後沿著體盤與尾部的前部。 寬的體盤與尾部長的。 背面全淺灰色的, 沒有斑紋, 腹面乳黃色的.(參考文獻 6902)
中西大西洋: 委內瑞拉灣。
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
IUCN 瀕危狀態 (Ref. 130435)
瀕危 (EN) (A2d); Date assessed: 01 July 2019
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Estimates based on models
Preferred temperature (Ref.
123201): 25.4 - 28.4, mean 27 °C (based on 54 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00575 - 0.03468), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (26 of 100).
