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) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus). (See ETYFish); herklotsi: In honor of British botanist-ornithologist Geoffrey Alton Craig Herklots (1902-1986), University of Hong Kong, “with many fond memories of the China Sea and Java”. (See ETYFish).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 533 - 864 m (Ref. 39445). ; 36°N - 8°N
Western Pacific: Japan, the Philippines, East and South China seas, and the Kyushu-Palau Ridge.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 48.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 11146)
背棘 (總數) : 0; 臀棘: 0. Brownish without conspicuous markings (Ref. 244).
A poorly known deep-water bottom shark (Ref. 11146). Oviparous (Ref. 50449).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
人類使用
漁業: 低經濟
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Estimates based on models
Preferred temperature (Ref.
123201): 6.3 - 10.6, mean 7.4 °C (based on 40 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.9 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
