Common names from other countries
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); africanus: -anus (L.), belonging to: Africa, described from deep water off the KwaZulu-Natal South Coast of South Africa. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 421 - 750 m (Ref. 3181). 深水域
Western Indian Ocean: off Kenya, Mozambique and Natal, South Africa.
西印度洋: 肯亞外海,莫三比克與南非的納塔爾。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 67.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3181)
背棘 (總數) : 1; 臀棘: 0; 臀鰭軟條: 0. A shortnose chimaera with the dorsal fin spine longer than the head; 2nd dorsal fin with distinct concavity in the middle (Ref. 5578).
一個短鼻的銀鮫,背鰭棘比頭部長; 在中央中第二背鰭鰭有明顯的凹窪。 (參考文獻 5578)
Feeds on ophiuroids (Ref. 27637). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
吃陽燧足。 (參考文獻 27637) 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
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oviparous (Ref. 205).西印度洋: 肯亞外海,莫三比克與南非的納塔爾。
Compagno, L.J.V., 1986. Chimaeridae. p. 144-145. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3181)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 02 September 2019
CITES (Ref. 128078)
Not Evaluated
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
115969): 8.9 - 11.4, mean 9.7 (based on 16 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): 4.1 ±0.60 se; based on food items.
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 (47 of 100).