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) >
Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
丫髻鮫科 (Hammerhead, bonnethead, or scoophead sharks)
Etymology: Sphyrna: Probable misspelling of sphyra (Gr.), hammer, referring to their hammer-shaped heads (See ETYFish).
Eponymy: Monsieur Couard was Director of shark fisheries off the coast of Senegal, the type locality. Unfortunately we can find nothing more about him. (Ref. 128868), visit book page.
Issue
Junior synonym of Sphyrna lewini (Griffith & Smith 1834) in Ref. 94083,106604. This page will be deleted.
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
海洋 底中水層性. 熱帶; 17°N - 5°S, 19°W - 13°E
Eastern Atlantic: Senegal to Congo. Not in Compagno's 1999 checklist (Ref. 35766).
東大西洋: 塞內加爾到剛果。 不在 Compagno's 1999 名錄中.(參考文獻 35766)
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 300 cm TL 雄魚/尚未辨別雌雄; (Ref. 244)
A coastal-pelagic shark. Feeds on fishes, especially bony fishes, and also benthic and epibenthic cephalopods. Viviparous, with 24 to 28 young in a litter. Size at birth about 30 to 32 cm.
一隻沿岸及大洋性的鯊魚。 吃魚, 尤其硬骨魚類 , 以及底棲與淺海底棲頭足類動物。 胎生的, 具有 24 到 28 幼魚在一胎。 出生時的大小大約 30 到 32 公分。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Viviparous, placental (Ref. 50449).東大西洋: 塞內加爾到剛果。 不在 Compagno's 1999 名錄中.(參考文獻 35766)
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 2025-1)
人類使用
漁業: 自給性漁業
工具
特別的報告
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網路資源
Estimates based on models
Preferred temperature (參考文獻
123201): 24.4 - 28, mean 26.7 °C (based on 64 cells).
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5006 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00153 - 0.00788), b=3.12 (2.93 - 3.31), 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): 4.5 ±0.54 se; based on food items.
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec=24).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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