分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Rajiformes (Skates and rays)
鰩目 (Skates and rays) >
Rajidae (Skates)
鰩科 (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).
Eponymy: Dr Eugene Willis Gudger (1866–1956) was an associate in ichthyology at the AMNH, New York, which he joined (1919) and later became Curator of Fishes. [...] (Ref. 128868), visit book page.
More on author: Whitley.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 160 - 765 m (Ref. 114953), usually 400 - 550 m (Ref. 6871). 深水域; 28°S - 44°S, 112°E - 155°E (Ref. 114953)
Indo-West Pacific: southern Australia, from Western Australia to New South Wales.
印度-西太平洋: 澳洲南部, 從澳洲西部到新南威爾斯。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 127 - ? cm
Max length : 184 cm TL 雄魚/尚未辨別雌雄; (Ref. 114953)
Occur over soft bottoms of the continental slope (Ref. 7300, 75154). Mainly feeds on small bony fishes (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205); egg cases ca. 19 cm long (Ref. 114953). This species reaches maturity at ca. 13 years. Length of mature males at ca. 120 cm TL; young hatch at ca. 26 cm TL (Ref. 114953).
生活在大陸斜坡的軟質底部之上。 (參考文獻 7300) 卵生的.(參考文獻 50449) 卵在貝殼上有像觸角一樣的突出。 (參考文獻 205)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).印度-西太平洋: 澳洲南部, 從澳洲西部到新南威爾斯。
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 瀕危狀態 (Ref. 130435: Version 2024-2)
近危 (NT) ; Date assessed: 20 February 2015
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Estimates based on models
Preferred temperature (Ref.
123201): 7.8 - 10.8, mean 9.5 °C (based on 33 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00131 - 0.00604), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).