Common names from other countries
أشلاق (القروش و الشفانين) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Dasyatinae
Etymology: Dasyatis: Greek, dasys = rough, dense (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
البيئة
بحري القاع; نطاق العمق 100 - 200 m (Ref. 51024). Temperate; 46°N - 30°N, 6°W - 36°E
Northeast Atlantic: known only from the Mediterranean. Validity of this species questioned in Compagno's 1999 checklist (Ref. 35766).
الحجم / وزن / العمر
Maturity: Lm ?  range ? - ? cm
Max length : 80.0 cm WD ذكر/ مختلط الجنس; (Ref. 3169); common length : 65.0 cm WD ذكر/ مختلط الجنس; (Ref. 3169)
Found over sandy and muddy bottoms. Feeds on bottom-living invertebrates and fishes. Ovoviviparous, gestation about 4 months and about 6 to 9 young are produced.
Life cycle and mating behavior
Maturities | التكاثر | Spawnings | Egg(s) | Fecundities | Larvae
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).
McEachran, J.D. and C. Capapé, 1984. Dasyatidae. p. 197-202. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 3169)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
استخدامات بشرية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
115969): 13.3 - 16.1, mean 14.9 (based on 33 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00265 - 0.01571), b=3.06 (2.86 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (Ref.
69278): 4.0 ±0.62 se; based on food items.
المرونه (Ref.
120179): منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Fec=6-9).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (78 of 100).