分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
Etymology: Sphyrna: Probable misspelling of sphyra (Gr.), hammer, referring to their hammer-shaped heads (See ETYFish); media: Latin for middle, allusion not explained, probably referring to its oculonarial expanse being “roughly intermediate in shape between that of hammerheads [subgenus Sphyrna] and shovelheads [subgenus Platysqualus]” (See ETYFish).
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
海洋 居于水底的; 深度上下限 8 - ? m (Ref. 58018). 熱帶; 35°N - 34°S, 118°W - 31°W
Western Atlantic: Panama to southern Brazil. Eastern Pacific: Gulf of California to Ecuador and probably northern Peru.
西大西洋: 巴拿馬到巴西南部。 東太平洋: 加州灣到厄瓜多與可能祕魯北部。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 150 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5217); common length : 100.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5217)
Little-known. Found in inshore areas over the continental shelves. Viviparous (Ref. 50449). Utilized fresh for human consumption and for fishmeal.
所知极少的。 发现于在大陆架上的近海区域了。 胎生的.(参考文献 50449) 生鲜使用供人类消费与用于鱼粉。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Viviparous, placental (Ref. 50449).西大西洋: 巴拿馬到巴西南部。 東太平洋: 加州灣到厄瓜多與可能祕魯北部。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
极度濒危 (CR) (A2bcd); Date assessed: 08 February 2019
人类利用
渔业: 低经济
工具
特别资料
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网络资源
Estimates based on models
Phylogenetic diversity index (参考文献
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).
营养阶层 (参考文献
69278): 4.0 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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