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: Urobatis: Greek,oura = tail + Greek, batis, batidos = a ray (Raja sp.) (Ref. 45335).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 1 - 30 m (Ref. 96339). 亞熱帶的
Eastern Central Pacific: southern Baja California, Mexico and the Gulf of California.
中太平洋東部: 墨西哥的下加利福尼亞南部與加州灣。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 42.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9265); common length : 30.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9265)
Found on shallow sand and mud bottoms, in sea grass beds, near rocky reefs, and in bays (Ref. 12951). Feeds on worms and amphipods during the day (Ref. 12951). Minimum depth from Ref. 58018.
在海洋草床，鄰近岩礁，棲息於水淺的沙與泥底部了, 與在海灣中.(參考文獻 12951) 吃蠕蟲與片腳類動物在白天期間。 (參考文獻 12951)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Ovoviviparous.中太平洋東部: 墨西哥的下加利福尼亞南部與加州灣。
McEachran, J.D., 1995. Urolophidae. Rayas redondas. p. 786-792. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9265)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 08 February 2019
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Estimates based on models
Preferred temperature (Ref.
123201): 22.3 - 26.9, mean 24 °C (based on 101 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00997 - 0.04380), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.42 se; based on food items.
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 (32 of 100).
