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Пластиножаберные (акулы и скаты) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Rajella: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).

Issue
Specific name amended to R. leoparda in accordance with ICZN Article 34.2 by Weigmann et al., 2014 (Ref.96993).

Environment: milieu / climate zone / depth range / distribution range экология

морской батидемерсальный; пределы глубины 130 - 1920 m (Ref. 106604). Deep-water; - 36°S

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Eastern Atlantic: off eastern and western South Africa to off Mauritania

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 95.0 cm TL самец/пол неопределен; (Ref. 106604)

Краткое описание определительные ключи | морфология | морфометрия

Large skate with a moderately long snout, small eyes, and a flat disc; tail about as long as body; small inconspicuous, light thorns on upper surface including snout (Ref. 5578). Medium grey to brownish dorsally, often with dark spots; white or mottled with dusky patches ventrally (Ref. 5578).

Found in deeper shelf and slope waters (Ref. 4426). Feed on bottom crustaceans, dragonets, rattails, hake, lanternfish, sea pens, cuttlefish and polychaete worms (Ref. 5578). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 7.4 cm long and 7.4 cm wide (Ref. 41249). Caught by hake trawlers (Ref. 5578).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Основная ссылка Upload your references | ссылки | координатор : McEachran, John | соавторы

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

Статус Красного Списка МСОП (Ref. 130435)

Не вызывающий беспокойства (LC) ; Date assessed: 31 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: коммерческий

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Estimates based on models

Preferred temperature (Ref. 123201): 4.1 - 11.9, mean 6.9 °C (based on 47 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00309 (0.00191 - 0.00501), b=3.33 (3.20 - 3.46), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.63 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): High vulnerability (58 of 100).

Категория цены (Ref. 80766): Medium.

Nutrients (Ref. 124155): Calcium = 9.71 [1.80, 49.75] mg/100g; Iron = 0.404 [0.092, 1.262] mg/100g; Protein = 16.5 [13.7, 19.1] %; Omega3 = 0.644 [0.200, 2.420] g/100g; Selenium = 14.5 [3.8, 46.2] μg/100g; VitaminA = 13 [3, 56] μg/100g; Zinc = 0.299 [0.147, 0.566] mg/100g (wet weight);

Rajella leoparda (von Bonde & Swart, 1923)