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 居于水底的; 深度上下限 15 - 1310 m (Ref. 26346). 深水域; 33°S - 43°S, 166°E - 178°W (Ref. 114953)
Southwest Pacific: endemic to New Zealand.
西南太平洋: 紐西蘭的特有種。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 112.0 range ? - ? cm
Max length : 240 cm TL 雄鱼/尚未辨别雌雄; (Ref. 26346); common length : 80.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9258); 最大年龄: 24 年 (Ref. 47618)
简单描述
检索表 | 型态特徵 | 形态测量图
Grey with scattered charcoal blotches dorsally, greyish-white ventrally (Ref. 26346).
灰色的有分散的深灰色斑块背面, 腹地的灰白色.(参考文献 26346)
Occurs in coastal waters, continental shelf and upper slope (Ref. 26346). Usually found in deeper waters to 200 m (Ref. 9258). Mainly feeds on benthic decapods and bony fishes (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Males reaches maturity at ca. 150 cm TL. This species is said to be long lived and slow growing (Ref. 114953).
出现于沿岸水域，大陆架与上层斜坡。 (参考文献 26346) 通常发现于较深的水域到 200 公尺.(参考文献 9258) 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). Young hatch at about 20-23 cm (Ref. 26346).西南太平洋: 紐西蘭的特有種。
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)
人类利用
渔业: 商业性
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Estimates based on models
Preferred temperature (Ref.
123201): 6.4 - 12.9, mean 8.2 °C (based on 173 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00133 - 0.00376), b=3.23 (3.09 - 3.37), 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
Generation time: 11.6 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (80 of 100).
