分類 / 名前
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (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); gilberti: In honor of ichthyologist Carter R. Gilbert (b. 1930), Florida State Museum of Natural History, who first reported (1967) an anomalous specimen of S. lewini that is likely the first recorded individual of this species (See ETYFish).
Eponymy: Dr Carter Rowell Gilbert (1930-2022) was an American zoologist and ichthyologist. [...] (Ref. 128868), visit book page.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 pelagic-neritic; 海洋回遊性 (Ref. 87829). Subtropical
分布
領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Western Atlantic: South Carolina, USA.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 47.1 cm OT オス/雌雄の選別がない; (Ref. 94083); 50.6 cm OT (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished from its congeners by having a head length greater than 20% of STL (stretched total length); cephalofoil has median indentation; with inner narial groove; pelvic fins with straight rear margins; 91 or fewer precaudal vertebrae (Ref. 94083).
Cross section: oval.
Measurements given in STL, stretch total length (Ref. 94083).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Quattro, J.M., W.B.III Driggers, J.M. Grady, G.F. Ulrich and M.A. Roberts, 2013. Sphyrna gilberti sp. nov., a new hammerhead shark (Carcharhiniformes, Sphyrnidae) from the western Atlantic Ocean. Zootaxa 3702(2):159-178. (Ref. 94083)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照
82804): PD
50 = 0.5006 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00159 - 0.00792), b=3.12 (2.93 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (参照
69278): 4.1 ±0.5 se; based on size and trophs of closest relatives
回復力 (参照
120179): 低い, 4.5年~14年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Very high vulnerability (90 of 100).
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