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) >
Leptochariidae (Barbeled houndsharks)
細鬚雅鯊科 (Barbeled houndsharks)
Etymology: Leptocharias: Etymology not explained, perhaps leptos (Gr.), slender; [Car]charias, i.e., a slender shark “very nearly related to Carcharias”. (See ETYFish); smithii: In honor of Andrew Smith (1797-1872), Scottish military physician, explorer, ethnologist and zoologist, who collected many South African sharks and coined many of the shark names later used by Müller and Henle. (See ETYFish).
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 半鹹淡水 居於水底的; 深度上下限 10 - 75 m (Ref. 244), usually 10 - 60 m (Ref. 5377). 熱帶; 20°C - 27°C; 22°N - 23°S, 26°W - 17°E
Eastern Atlantic: Mauritania to Namibia (Ref. 127434).
東大西洋: 茅利塔尼亞到那米比亞。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 77.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244); 82.0 cm TL (female); common length : 55.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 26999)
Similar to species of Mustelus but nostrils with anterior flaps formed into distinct barbels (Ref. 5485).
類似 Mustelus 的種但是鼻孔有進入明顯的觸鬚之內被形成的前蓋.(參考文獻 5485)
Found on the continental shelf, especially abundant off river mouths on muddy bottoms. Salinity: 35-36 ppt. Oxygen: 3-4 ppm. Feeds on small bottom and littoral organisms like crustaceans, bony fishes, octopi and sponges. Viviparous (Ref. 50449), with 7 young in a litter (Ref. 244). Dental sexual dimorphism is manifested by males having greatly enlarged anterior teeth. Utilized fresh, smoked or dried salted for human consumption, skin for leather.
棲息於大陸棚，尤其豐富的河口外的沙泥底上了。 鹽度: 35-36個 ppt。 氧: 3-4個 ppm。 吃小的底部與海濱的生物例如甲殼動物，硬骨魚類，章魚與海綿。 胎生的 (參考文獻 50449),7 幼魚在一胎.(參考文獻 244) 牙齒的性同種二形是由雄性顯示，有明顯增大前面的齒。 生鮮使用, 煙燻了或乾燥鹽醃供人類消費，皮膚用做皮革。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Viviparous, placental (Ref. 50449), with 7 young in a litter (Ref. 244). Distinct pairing with embrace (Ref. 205).東大西洋: 茅利塔尼亞到那米比亞。
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)
人類使用
漁業: 低經濟
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Estimates based on models
Preferred temperature (Ref.
123201): 19.2 - 28, mean 26 °C (based on 116 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.49 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): Moderate to high vulnerability (53 of 100).
