分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Holocephali
全头亚纲 (银鲛科) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (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
生态学
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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 67.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3181)
背棘 (总数) : 1; 臀棘: 0; 臀鳍软条: 0. A shortnose chimaera with the dorsal fin spine longer than the head; 2nd dorsal fin with distinct concavity in the middle (Ref. 5578).
一个短鼻的银鲛，背鳍棘比头部长; 在中央中第二背鳍鳍有明显的凹洼。 (参考文献 5578)
Feeds on ophiuroids (Ref. 27637). Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).
吃阳燧足。 (参考文献 27637) 卵生的.(参考文献 205) 卵被包在角状的外型突起中。 (参考文献 205)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
人类利用
渔业: 没有兴趣
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Estimates based on models
Preferred temperature (Ref.
123201): 8.9 - 11.4, mean 9.7 °C (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).
营养阶层 (Ref.
69278): 4.1 ±0.60 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming Fec <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
