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); stenseni: In honor of Danish geologist and anatomist Niels Stensen (1638-1686, also known as Nicolas Steno), for “important studies of elasmobranch anatomy, which, because of their scientific accuracy, were influential in the beginnings of elasmobranch systematics in the pre-Linnaean period and later, even to the time of the appearance of Müller and Henle’s ‘Plagiostomia’ in 1841”. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 915 - 975 m. 深水域; 9°N - 2°N
Eastern Central Pacific: Panama (Ref. 244). Presence in Galapagos is questionable (Ref. 28023).
中太平洋東部: 巴拿馬.(參考文獻 244) 在加拉巴哥島的出現是可疑的。 (參考文獻 28023)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Poorly known. Maximum length might be over 23 cm TL. Oviparous (Ref. 50449).
知道的很少。 最大的長度可能是超過 23 公分TL 。 卵生的.(參考文獻 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).中太平洋東部: 巴拿馬.(參考文獻 244) 在加拉巴哥島的出現是可疑的。 (參考文獻 28023)
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 February 2019
人類使用
漁業: 沒有興趣
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Estimates based on models
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 to high vulnerability (47 of 100).
