Common names from other countries
(كوسه ها و سپرماهيان) (sharks and rays) >
Myliobatiformes (Stingrays) >
Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي نزديك كف زي; تغييرات عمق 1 - 94 m (Ref. 96339). Subtropical; 44°N -
Eastern Pacific: California, USA to Peru.
Size / Weight / سن
Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL جنس نر / بدون خواص جنسي; (Ref. 9255); common length : 95.0 cm WD جنس نر / بدون خواص جنسي; (Ref. 1468)
Inhabits warm-temperate to tropical shallow bays and beaches (Ref. 2850). Feeds on crustaceans and small fishes (Ref. 37955). Ovoviviparous (Ref. 50449). Has a small venom apparatus which has limited use as a defense organ (Ref. 37955). Maximum length reported to reach 150 cm (Ref. 37955).
Life cycle and mating behavior
Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)
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).
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)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
استفاده انسانی
ماهي گيري – شيلات: ارزش تحاري اندك
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
115969): 17.7 - 28.8, mean 23.4 (based on 100 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00352 - 0.01710), b=3.09 (2.89 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.0 ±0.65 se; based on food items.
جهندگی (Ref.
120179): خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).