Common names from other countries
Пластиножаберные (акулы и скаты) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
Issue
The few specimens examined of this species are most probably teratologic individuals of Leucoraja fullonica. A doubtful species until genetic/molecular clues are provided and published (B. Séret, pers.comm. 03/09) (Ref. 78469:14).
Environment: milieu / climate zone / depth range / distribution range
экология
морской демерсальный. Subtropical
Northeast Atlantic: known only from the French Mediterranean coast and Gulf of Genoa in Italy.
Size / Вес / Возраст
Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL самец/пол неопределен; (Ref. 3167)
Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Stehmann, M. and D.L. Bürkel, 1984. Rajidae. p. 163-196. 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. 3167)
Статус Красного Списка МСОП (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Preferred temperature (Ref.
115969): 13.1 - 15.2, mean 13.9 (based on 64 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00124 - 0.00582), b=3.26 (3.09 - 3.43), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.44 se; based on food items.
устойчивость к внешним воздействиям (Ref.
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (40 of 100).