ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Beringraja: Named for the Bering Sea, though to be the origin of the two species in this genus; binoculata: From the Latin 'bi' meaning two and 'oculata' meaning eyed - referring to the arrangement of pigment on the pectoral fin bases (Ref. 6885).
More on author: Girard.
Environment: milieu / climate zone / ລະດັບຄວາມເລິກ / distribution range
ນິເວດວິທະຍາ
ສັດທະເລ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; ລະດັບຄວາມເລິກ 3 - 800 m (Ref. 6793), usually 3 - 110 m (Ref. 2850). Temperate; 61°N - 31°N, 165°W - 117°W (Ref. 55279)
North Pacific: Glubokaya Bay, Cape Navarin, and Stalemate Bank to Cedros Island, Baja California, Mexico.
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
ການຈະເລີນເຕັມໄວ: Lm ?, range 130 - ? cm
Max length : 244 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 2850); common length : 180 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 2850); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 91.0 kg (Ref. 2850)
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 0; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 0. Dorsal fins well back on tail, small; caudal and anal fins absent; pectorals broad, attached to snout and incorporated with body; pelvic fins large, moderately concave on free margins (Ref. 6885). Posterior sides of tail with a small fleshy keel on either side (Ref. 6885).
Body shape (shape guide): other.
Largest skate in North America (Ref. 2850). Feed on crustaceans and fishes (Ref. 6885). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Young hatch at 18-23 cm TL (Ref. 114953). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 22.8-30.5 cm long and 11.0-19.4 cm wide (Ref. 41249, 41300, 41357). Pectoral fins utilized for human consumption (Ref. 2850). Marketed fresh and frozen; eaten fried and baked (Ref. 9988).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Up to 7 embryos per egg case (Ref. 2850). 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).
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)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
ການປະມົງ: ເປັນສີນຄ້າ; ຕູ້ປາ: ບ່ອນວາງສະແດງສັນນ້ຳຂອງລັດ
ເຄື່ອງມື
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Preferred temperature (ເອກະສານອ້າງອີງ
123201): 3.4 - 10.8, mean 6.8 °C (based on 512 cells).
Phylogenetic diversity index (ເອກະສານອ້າງອີງ
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (ເອກະສານອ້າງອີງ
69278): 3.9 ±0.64 se; based on food items.
ຄວາມຢືດຢຸ່ນ (ເອກະສານອ້າງອີງ
120179): ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrients (Ref.
124155): Calcium = 2.86 [0.39, 50.14] mg/100g; Iron = 0.195 [0.018, 2.275] mg/100g; Protein = 15.8 [14.0, 17.7] %; Omega3 = 0.665 [0.306, 1.433] g/100g; Selenium = 23.6 [8.8, 95.7] μg/100g; VitaminA = 3.53 [0.27, 43.61] μg/100g; Zinc = 0.277 [0.018, 3.087] mg/100g (wet weight); based on
nutrient studies.
