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) >
Squaliformes (Sleeper and dogfish sharks)
角鯊目 (Sleeper and dogfish sharks) >
Squalidae (Dogfish sharks)
棘鮫科 (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 60 - 400 m (Ref. 247). 亞熱帶的; 36°N - 56°S, 97°W - 45°W (Ref. 54893)
Western Atlantic: North Carolina to Florida (USA), Gulf of Mexico, Cuba, Hispaniola; southern Brazil and Argentina.
西大西洋: 北卡羅萊那州到佛羅里達 (美國) ，墨西哥灣，古巴, 希斯盤紐拉島; 巴西南部與阿根廷。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - 50 cm
Max length : 110 cm TL 雄魚/尚未辨別雌雄; (Ref. 247); common length : 75.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 247)
A slim, gray shark with tips of dorsal fins black and edges of pectoral, pelvic and caudal fins white; two dorsal fins each with strong, ungrooved spine at front edge (Ref. 26938).
瘦, 灰色鯊魚有背鰭頂端黑色與胸鰭，腹鰭與尾鰭白色的邊緣; 二個背鰭每個具有強又無凹槽的棘在前緣.(參考文獻 26938)
Inhabits continental shelves and uppermost slopes. Found in 60 to 380 m deep (Ref. 26938). Found on or near the bottom in large, dense schools. Probably feeds on bottom fishes and invertebrates. Ovoviviparous, with about 10 young per litter. A huge parasite (isopod) lives in its buccal cavity. Seldom used for food, but taken in commercial catches for its liver which yields oil and vitamins. Maximum depth reported taken from Ref. 55584.
棲息於大陸棚與最上面的斜坡。 發現於了 60 到 380 公尺深.(參考文獻 26938) 棲息於近的底部較大時, 密集的魚群。 可能吃底層魚類與無脊椎動物。 卵胎生的, 有大約 10個幼魚每胎。 一個大批的寄生蟲 (等足目動物) 生活在它的噴水孔中。 很少用來當作食物, 但是對於產生油與維他命的它的肝臟採自了商業的捕獲。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Ovoviviparous, with about 10 young per litter (Ref. 247). Distinct pairing with embrace (Ref. 205).西大西洋: 北卡羅萊那州到佛羅里達 (美國) ，墨西哥灣，古巴, 希斯盤紐拉島; 巴西南部與阿根廷。
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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 21 June 2019
人類使用
漁業: 低經濟
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Estimates based on models
Preferred temperature (Ref.
123201): 13.6 - 23.7, mean 18.7 °C (based on 111 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00165 - 0.00730), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.6 se; based on diet studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=10).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).
