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); fasciatus: Latin for banded, referring to vertical dark bars on body (at least in young). (See ETYFish).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 1 - 250 m (Ref. 56500), usually 1 - 50 m (Ref. 56500). 亞熱帶的; 30°S - 47°S
Southwest Atlantic: southern Brazil to northern Argentina.
西南大西洋: 巴西南部到阿根廷北部。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 123.3 range ? - ? cm
Max length : 150 cm TL 雄魚/尚未辨別雌雄; (Ref. 244); common length : 70.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 6077)
Longer snout relative to the size of the eye, head more flattened. Back brown with narrow transverse bands of darker separated spaces. Yellow spot in front of each eye above each orbit. Fins dark with narrow edgings lighter. Lower surfaces whitish (Ref. 6032).
較長的吻相對於眼的大小, 頭部較平的。 背面褐色的有狹窄橫紋深色間隔。 在每個眼窩上面的每個眼之前的黃斑。 鰭深色且有狹窄的邊緣顏色淡的。 下表面微白色的.(參考文獻 6032)
Found on the continental shelf. Newbies are found on beaches of between 1 and 5 m depth, juveniles occupy inshore waters at between 15 and 50 m, and adults are found down to 50 and on upper slopes of up to 250 m in depth (Ref. 56500). Presumably feeds on crustaceans and other benthic invertebrates. Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Size at birth at or below about 39 cm. Utilized fresh-frozen and dried salted for human consumption.
棲息於大陸棚了。 推測為捕食甲殼動物與其他的底棲無脊椎動物。 卵胎生的, 胚胎僅以卵黃為食。 (參考文獻 50449) 出生時的大小在或低於大約 39 公分。 生鮮使用-冷凍與乾燥鹽醃供人類消費。
Ovoviviparous, embryos feed solely on yolk (Ref. 50449). Distinct pairing with embrace (Ref. 205). Migrate to the shore to give birth at the shortest time possible (Ref. 56500).西南大西洋: 巴西南部到阿根廷北部。
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)
極危 (CR) (A2bd); Date assessed: 01 July 2019
人類使用
漁業: 商業性
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Estimates based on models
Preferred temperature (Ref.
123201): 10.5 - 18, mean 14.5 °C (based on 166 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00105 - 0.00478), b=3.14 (2.97 - 3.31), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.7 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 = 4).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
