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) >
Squaliformes (Sleeper and dogfish sharks) >
Centrophoridae (Gulper sharks)
Etymology: Centrophorus: centr[um] (L.), prickle or sharp point; phorus, from phoreus (Gr.), bearer or carrier, referring to grooved spines on dorsal fins (See ETYFish); lesliei: In honor of Robin Leslie, Department of Agriculture, Forestry and Fisheries (South Africa), “who has contributed greatly to our knowledge of southern African chondrichthyans and provided numerous important specimens and tissue samples for various projects” (See ETYFish).
Eponymy: Dr Robin Leslie works for the Fisheries Branch, Department of Agriculture, Forestry and Fisheries in South Africa. [...] (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 深海魚; 深さの範囲 340 - 610 m (Ref. 116740). Tropical
Western Indian Ocean, Mozambique Channel (Madagascar and Mozambique), and off Senegal, Côte d’Ivoire, Equatorial Guinea, and Togo; Morocco, the Canary
Islands, and Ghana.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 76.5 cm TL オス/雌雄の選別がない; (Ref. 116740); 99.0 cm TL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
This medium sized (<1 m maximum total length) species is distinguished by the following set of characters: body relatively slender; head moderately long, 21.4-26.4% TL; snout relatively short, its horizontal preorbital length 6.5-8.2% TL, rounded in dorsal view; first dorsal very long with base length 16.8-19.7% TL and soft fin length 16.0-17.4% TL, and high with height 6.5-7.8% TL, its inner margin relatively short, 5.7-7.4% TL, 2.3–2.9 in soft fin length; second dorsal fin much smaller in area to first, similar in height to first dorsal fin, its height 1.0-1.3 in first dorsal-fin height; pectoral fins are large, anterior margin length 11.9-13.4% TL, free rear tip elongate in larger individuals, 2.4-4.8% TL; lateral trunk denticles of larger individuals are sessile or not raised on pedicels, block-like, not elevated; upper teeth of larger individuals have erect to slightly oblique cusps; lower teeth of all sized specimens are much larger than upper teeth, strongly oblique, blade-like; total vertebral centra 119-122; teeth 33–42/29–31 (Ref. 116740).
Cross section: oval.
Examined type specimens ranged in size from 31.7-95.0 cm TL, with the smallest free-swimming individual at 40.8 cm TL; a late-term embryo of 31.7 sm TL still with a small external yolk sac; an embryo of 39.5 cm TL from a pregnant female. A female of 86.3 cm TL was found to be mature and pregnant. Reported sizes of adult males 71.5-76.5 cm TL and adult females 89.0-99.0 cm TL (Ref. 116740).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
White, W.T., D.A. Ebert and G.J.P. Naylor, 2017. Revision of the genus Centrophorus (Squaliformes: Centrophoridae): Part 2 - Description of two new species of Centrophorus and clarification of the status of Centrophorus lusitanicus Barbosa du Bocage & de Brito Capello, 1864. Zootaxa 4344(1):086-114. (Ref. 116740)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅危惧 (EN) (A2d); Date assessed: 27 February 2024
人間の用途
水産業: 興味がない
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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (参照
69278): 4.3 ±0.3 se; based on size and trophs of closest relatives
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 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): High vulnerability (60 of 100).
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