分類 / 名稱
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); laurussonii: In honor of Saemundsson’s friend Gísli Lárusson (1865-1935), goldsmith, watchmaker, farmer and nature enthusiast, for his “long and invaluable support of the study of Icelandic fishes, and for carefully encouraging the skillful fishermen of Vestmannaeyjar Island [near type locality]” (translation) (See ETYFish).
Eponymy: Gísli Láurusson (1865–1935) was an Icelander described as ‘Hr Direktur’. [...] (Ref. 128868), visit book page.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海底的; 深度上下限 560 - 1550 m (Ref. 97621). 深水域; 67°N - 11°N, 98°W - 11°E (Ref. 56872)
Western Atlantic: Massachusetts and Delaware, USA and the northern Gulf of Mexico. Eastern Atlantic: Iceland, southwestern Ireland, Canary Islands and Madeira.
西大西洋: 美國麻薩諸塞州與德拉瓦州與墨西哥灣北部。 東大西洋: 冰島，愛爾蘭西南方，加納利群島與馬得拉群島。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 76.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 97621); 69.0 cm TL (female)
Fairly common on the upper continental slopes, usually over mud or other soft sea bottom (Ref. 9996). Oviparous (Ref. 50449).
非常常見於大陸坡上層, 通常在泥或其他的軟海底上面.(參考文獻 9996) 卵生的.(參考文獻 50449)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).西大西洋: 美國麻薩諸塞州與德拉瓦州與墨西哥灣北部。 東大西洋: 冰島，愛爾蘭西南方，加納利群島與馬得拉群島。
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 19 June 2019
人類使用
漁業: 沒有興趣
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基於模型的估計
首選溫度 (參考文獻
123201): 3.6 - 10.1, mean 6.7 °C (based on 250 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00172 - 0.00698), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 4.0 ±0.6 se; based on diet studies.
回復力 (參考文獻
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec assumed to be <10).
釣魚的脆弱性 (Ref.
59153): Moderate to high vulnerability (50 of 100).
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營養素 (Ref.
124155): Calcium = 9.53 [1.72, 58.09] mg/100g; Iron = 0.338 [0.075, 1.163] mg/100g; Protein = 18.8 [16.7, 21.0] %; Omega3 = 0.234 [0.090, 0.612] g/100g; Selenium = 16.1 [4.9, 53.6] μg/100g; VitaminA = 6.11 [1.23, 28.29] μg/100g; Zinc = 0.296 [0.148, 0.550] mg/100g (wet weight);
