分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全頭亞綱 (銀鮫科) (chimaeras) >
Chimaeriformes (Chimaeras)
銀鮫目 (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
短鼻銀鮫科 (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors. (See ETYFish); purpurescens: Latin for purple-tinged, referring to its purplish or plum color. (See ETYFish).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 1150 - 1951 m (Ref. 58302). 溫帶
Pacific Ocean: Japan and the Hawaiian Islands.
太平洋: 日本與夏威夷群島。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
Engybenthic.(參考文獻 58302) 卵生的.(參考文獻 205) 卵被包在角狀的外型突起中。 (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 (Ref. 205).太平洋: 日本與夏威夷群島。
Nakaya, K., 1984. Chimaeridae. p. 17. In H. Masuda, K. Amaoka, C. Araga, T. Uyeno and T. Yoshino (eds.) Fishes of the Japanese Archipelago. Tokai Univ. Press, Tokyo, Japan. 437 p, 370 pls. (Ref. 11099)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 02 September 2019
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Estimates based on models
Preferred temperature (Ref.
123201): 1.4 - 1.7, mean 1.5 °C (based on 499 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 (0.00118 - 0.00673), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.9 ±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 Fec <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (55 of 100).