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)
真鯊目 (Ground sharks) >
Triakidae (Houndsharks)
平滑鮫 (Houndsharks) > Triakinae
Etymology: Mustelus: Latin for weasel, an ancient name for sharks, possibly referring to the pointed snouts, swift movements and/or rapacious feeding behavior of smaller predatory sharks [strictly not tautonymous with Squalus mustelus Linnaeus 1758 since type was designated by the ICZN]. (See ETYFish); norrisi: In honor of American zoologist Harry Waldo Norris (1862-1946), Grinnell College (Iowa), who studied the cranial nerves of the Spiny Dogfish Squalus acanthias. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 1 - 100 m (Ref. 55584), usually 3 - 40 m (Ref. 55311). 亞熱帶的; 32°N - 36°S, 99°W - 47°W (Ref. 55311)
Western Atlantic: Florida, USA and the northern Gulf of Mexico to Venezuela; also southern Brazil.
西大西洋: 美國的佛羅里達與墨西哥灣北部到委內瑞拉; 也巴西南部。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 110 cm TL 雄魚/尚未辨別雌雄; (Ref. 40637); common length : 80.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217); 最大體重: 13.8 kg (Ref. 40637)
Found on the continental shelves, on muddy or sandy bottoms to about 80 m depth. Feeds on crabs and shrimps, and also bony fishes. Viviparous (with a yolk-sac placenta), with 7 to 14 young in a litter. Size at birth 30 cm.
棲息於大陸棚了, 在泥質或砂質底部上到大約 80 公尺深。 吃螃蟹與蝦 , 與也捕食硬骨魚類。 胎生的 (具有一個卵黃囊胎盤),7 到 14 幼魚在一胎。 出生時的大小 30 公分。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Viviparous (with a yolk-sac placenta) (Ref. 244). Distinct pairing with embrace (Ref. 205).西大西洋: 美國的佛羅里達與墨西哥灣北部到委內瑞拉; 也巴西南部。
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)
近危 (NT) (A2bd); 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): 22.6 - 28, mean 25.7 °C (based on 450 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00170 (0.00096 - 0.00301), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.9 ±0.67 se; based on food items.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=7).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (66 of 100).
