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Ophidiiformes (Cusk eels) >
Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Pycnocraspedum: Greek, pyknos = dense + Greek, kraspedon = border (Ref. 45335).
More on author: Alcock.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海 底生の漂泳性; 深さの範囲 200 - 500 m (Ref. 31524). Deep-water
Indo-West Pacific: off East Africa to New Caledonia.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 29.9 cm SL オス/雌雄の選別がない; (Ref. 124036)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 63 - 92; 臀鰭: 54 - 79; 脊つい: 47 - 49. A deep bodied cusk eel distinguished by the following characters: head 3.0-3.9 times in SL; eye diameter 5.5-6.8 in HL; interorbital 4.8-6.3 in HL; snout 3.8-5.2 in HL; depth 4.3-6.8 in SL; predorsal length 3.3-4.7 in SL, with distance between pelvic origin to anal origin 2.5-4.4 in SL; absence of pseudobranchiae; pyloric caeca 12-13; median basibranchial tooth patches 2; one opercular spine and 3 short blunt spines at the lower angle of preopercle; differs from its congeners in origin of dorsal fin which is above preopercle, no pseudobranchial filaments, pectoral fins and pelvic fins are short and not reaching anus (Ref. 124036)
Body shape (shape guide): elongated; Cross section: compressed.
A benthic species found on the continental slope (Ref. 75154). Uncommon species (Ref. 34024). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)
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: 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
好ましい温度 (参照
123201): 11.1 - 18.8, mean 13.5 °C (based on 131 cells).
系統多様性指数 (参照
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (参照
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
回復力 (参照
120179): 手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.).
漁業の脆弱性 (Ref.
59153): Low to moderate vulnerability (26 of 100).
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