Elasmobranchii (sharks and rays) >
Myliobatiformes (Stingrays) >
Urotrygonidae (American round stingrays)
Etymology: Urotrygon: Greek, oura = tail + Greek, trygon = a sting ray (Ref. 45335).
Eponymy: Dr George Warren Rogers was a physician from Vermont who lived in Mazatlan, Sinaloa, Mexico. He was described in the etymology as ‘a scholarly physician’ who assisted the authors. (Ref. 128868), visit book page.
More on authors: Jordan & Starks.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 2 - 30 m (Ref. 96339). Tropical; 27°N - 2°S, 110°W - 77°W
Eastern Central Pacific: southern Gulf of California to Ecuador.
Length at first maturity / Size / Weight / Age
Maturity: Lm 11.8, range 11 - 13.5 cm
Max length : 46.2 cm TL male/unsexed; (Ref. 9265); common length : 37.5 cm TL male/unsexed; (Ref. 9265)
Found on soft bottoms of coastal waters (Ref. 9265). Feeds on crustaceans and small fishes (Ref. 37955). Venomous spine on tail (Ref. 9265). Sometimes utilized as a food fish (Ref. 37955).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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 Red List Status (Ref. 130435: Version 2024-2)
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 25.9 - 29.1, mean 28.3 °C (based on 118 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 (0.00578 - 0.03452), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.63 se; based on food items.
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (36 of 100).