分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (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
生态学
海洋 深海底的; 深度上下限 93 - 450 m (Ref. 27092). 深水域; 22°S - 57°S, 99°W - 42°W
Southeast Pacific: Chile to Southwest Atlantic: Argentina, Uruguay and Brazil.
西南大西洋: 在 45 ° 36.1'S,66 ° 12.2' W 與 51 ° 6 之間.8個 'S,62 ° 24' 東南太平洋 W.: Bahia de San Vicente 到 Seno Reloncavi ， Puerto Montt。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 215.0, range 200 - ? cm
Max length : 264 cm TL 雄鱼/尚未辨别雌雄; (Ref. 114953); 最大体重: 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).
卵生的.(参考文献 50449) 卵在贝壳上有像触角一样的突出。 (参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).西南大西洋: 在 45 ° 36.1'S,66 ° 12.2' W 與 51 ° 6 之間.8個 'S,62 ° 24' 東南太平洋 W.: Bahia de San Vicente 到 Seno Reloncavi ， Puerto Montt。
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)
世界自然保护联盟红皮书 (Ref. 130435)
濒危 (EN) (A2bd); Date assessed: 08 February 2019
人类利用
渔业: 商业性
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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).
营养阶层 (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (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);
