ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
ສັດທະເລ ກ່ຽວກັບ(ຢູ່)ຊັ້ນນ້ຳໃນທະເລທີ່ເໜີອພື້ນດິນ; ລະດັບຄວາມເລິກ 93 - 450 m (Ref. 27092). Deep-water; 22°S - 57°S, 99°W - 42°W
Southeast Pacific: Chile to Southwest Atlantic: Argentina, Uruguay and Brazil.
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm 215.0, range 200 - ? cm
Max length : 264 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 114953); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 0.00 g
Occurs on sandy and muddy bottoms of outer continental shelf and upper slope, also found at shallower depth 20m. Feeds mainly on bony fishes and crustaceans (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205); egg cases ca. 20-30 cm long (Ref. 114953). Reaches maturity at ca. 13 years (Ref. 114953).
Life cycle and mating behavior
Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
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)
Threat to humans
Harmless
Human uses
ການປະມົງ: ເປັນສີນຄ້າ
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Estimates based on models
Preferred temperature (Ref.
123201): 4.7 - 12.2, mean 6 °C (based on 124 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00234 (0.00159 - 0.00346), b=3.18 (3.06 - 3.30), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຕຳ່, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 4.5 - 14 ປີ (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 4.39 [0.76, 23.72] mg/100g; Iron = 0.315 [0.076, 0.995] mg/100g; Protein = 16.6 [13.8, 19.3] %; Omega3 = 0.4 [0.1, 1.5] g/100g; Selenium = 16.3 [4.2, 57.8] μg/100g; VitaminA = 6.16 [1.35, 29.16] μg/100g; Zinc = 0.258 [0.123, 0.485] mg/100g (wet weight);