Пластиножаберные (акулы и скаты) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Bathyraja: Greek, bathys = deep + Latin, raja, -ae = a ray (Raja sp) (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
экология
морской демерсальный; пределы глубины ? - 800 m (Ref. 11892), usually 20 - 200 m (Ref. 11892). Polar; 48°S - 54°S, 63°E - 79°E
Southern Ocean: considered endemic to the Kerguelen Plateau (Ref. 5159).
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 60.0 cm TL самец/пол неопределен; (Ref. )
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 6.0 cm long and 3.4 cm wide (Ref. 41249). Frequently taken in commercial bottom hauls but not much utilized because of its small size (Ref. 5159).
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). Eggs have horn-like projections on the shell (Ref. 205).
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)
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения
дополнительная информация
инструменты
Специальные отчеты
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Estimates based on models
Preferred temperature (Ref.
123201): 1.6 - 3.9, mean 3 °C (based on 42 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00253 - 0.01042), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
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 (44 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (73 of 100).
Nutrients (Ref.
124155): Calcium = 4.88 [0.73, 93.88] mg/100g; Iron = 0.289 [0.029, 3.844] mg/100g; Protein = 14.4 [12.6, 16.4] %; Omega3 = 0.446 [0.167, 1.203] g/100g; Selenium = 13.5 [2.3, 61.0] μg/100g; VitaminA = 6.87 [0.48, 87.04] μg/100g; Zinc = 0.277 [0.017, 3.184] mg/100g (wet weight);
![Image of Bathyraja murrayi (Murray\](/images/thumbnails/gif/tn_Bamur_f0.gif "Image of Bathyraja murrayi (Murray\")
