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); brunneus: Medieval Latin for brown, referring to its “uniform warm brown” color above and below (See ETYFish).
More on author: Gilbert.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 居於水底的; 海洋洄游的 (Ref. 138310); 深度上下限 33 - 1306 m (Ref. 96339). 亞熱帶的; 60°N - 39°S, 138°W - 70°W (Ref. 56871)
Eastern Pacific: British Columbia, Canada to northern Baja California, Mexico. Probably south to Panama, Ecuador, and Peru.
東太平洋: 到墨西哥的下加利福尼亞北部的加拿大卑詩省。 可能南至巴拿馬,厄瓜多與祕魯。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 69.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 96339)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 臀棘: 0. Dark brown, with conspicuous light posterior margin on fins (Ref. 247).
Body shape (shape guide): elongated.
深褐色的, 在鰭上有明顯的發亮後緣.(參考文獻 247)
Adults inhabit the outer continental shelf and upper slope (Ref. 244). Found over muddy or sandy bottoms (Ref. 27436). They feed on small true shrimps, euphausiid shrimps, squids, and small fishes (Ref. 244). Oviparous (Ref. 50449).
棲息於大陸棚外緣與上層斜坡。 (參考文獻 244) 發現在泥質或砂質底部上了。 (參考文獻 27436) 吃小的真實蝦,磷蝦,烏賊與小魚。 (參考文獻 244) 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, with a single egg per oviduct (Ref. 244). Eggs are enclosed in oblong transparent cases with tendrils at each end (Ref. 6885). Embryos feed solely on yolk (Ref. 50449). In Canada, females carry egg cases from February to August (Ref. 244).東太平洋: 到墨西哥的下加利福尼亞北部的加拿大卑詩省。 可能南至巴拿馬,厄瓜多與祕魯。
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: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 04 June 2024
人類使用
漁業: 沒有興趣
工具
特別的報告
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網路資源
基於模型的估計
系統發育多樣性指數 (參考文獻 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00347 (0.00171 - 0.00701), 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 (參考文獻 69278) |
3.6 ±0.0 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) |
Low to moderate vulnerability (33 of 100). 🛈 |