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) >
Carcharhinidae (Requiem sharks)
Etymology: Rhizoprionodon: rhiza (Gr.), root; prion (Gr.) saw; odon (Gr.), tooth, referring to teeth with serrated (saw-like) bases, or roots [replacement name for Rhizoprion Ogilby 1915, preoccupied by Rhizoprion Jourdan 1861 in mammals] (See ETYFish); taylori: In honor of entomologist Frank Henry Taylor (1886-1945), Institute of Tropical Medicine, Townsville, North Queensland, Australia, who collected holotype (See ETYFish).
Eponymy: Frank Henry Taylor (1886–1945) was an entomologist at the Institute of Tropical Medicine, Townsville, Queensland, Australia. [...] (Ref. 128868), visit book page.
More on author: Ogilby.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 pelagic-oceanic; 深さの範囲 ? - 300 m (Ref. 75154). Tropical; 8°S - 28°S
Western Pacific: off Papua New Guinea and northern Australia.
初回成熟時の長さ / サイズ / 重さ / 年齢
成熟: Lm 47.0, range 42 - ? cm
Max length : 69.1 cm TL オス/雌雄の選別がない; (Ref. 9161); 最大記録サイズ: 7 年 (Ref. 9161)
背面の脊椎 (合計) : 0; 肛門の骨: 0. Brownish grey above, white below, fins light-edged but not conspicuously marked (Ref. 9997).
Body shape (shape guide): fusiform / normal.
A little-known shark (Ref. 9997) found on the continental shelf from close inshore to a depth of at least 110 m (Ref. 6871). Feeds mainly on fishes, but also takes cephalopods and crustaceans (Ref. 6871). Viviparous (Ref. 50449). Caught frequently by inshore demersal gillnet fisheries off Papua, but rarely elsewhere. Utilized for its fins and meat (Ref.58048). Too small to be of any commercial importance (Ref. 6871).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Viviparous, with a yolk-sac placenta (Ref. 9997) and 1-10 pups after a gestation period of 11-12 months; born at ~ 25 cm TL; very rapid growth (Ref.58048). Distinct pairing with embrace (Ref. 205).
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: bycatch
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
好ましい温度 (参照
123201): 22.5 - 28, mean 26.6 °C (based on 321 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00200 - 0.00910), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
栄養段階 (参照
69278): 4.5 ±0.0 se; based on diet studies.
Generation time: 2.6 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (参照
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (K=1.01-1.34; tm=1; tmax=7; Fec=1-8).
漁業の脆弱性 (Ref.
59153): Low to moderate vulnerability (33 of 100).
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