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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Ophichthus: Greek, ophis = serpent + Greek, ichthys = fish (Ref. 45335); yamakawai: Named after Takeshi Yamakawa,.
Eponymy: Takeshi Yamakawa (d: 1942) is a fish collecting specialist who is an ichthyologist at Kochi University (Japan). [...] (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 底生の; 深さの範囲 ? - 100 m (Ref. 131479). Subtropical
Northwest Pacific: Japan.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 35.6 cm TL オス/雌雄の選別がない; (Ref. 131479)
簡単な記述
検索表 | 形態学 | 形態計測学
脊つい: 172. This species with 4 large dark blotches along lateral line from mid-trunk to posterior tail is distinguished by the following set of characters: head 7.5% TL; tail 58% TL; dorsal-fin origin is behind pectoral-fin tip, 2.7 times pectoral-fin length; teeth are small and conical, uniserial on maxilla, mandible and vomer; total vertebrae 172, predorsal 16, preanal 67 (Ref. 131479).
Cross section: oval.
Collecting depth is unknown, but it was possibly collected from deep water ca. 100 m (T. Yamakawa, pers. comm., in Ref. 131479).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Hibino, Y., J.E. McCosker and F. Tashiro, 2019. Four new deepwater Ophichthus (Anguilliformes: Ophichthidae) from Japan with a redescription of Ophichthus pallens (Richardson 1848). Ichthyological Research 66(2):289-306. (Ref. 131479)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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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) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00093 (0.00041 - 0.00212), b=2.99 (2.79 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.8 ±0.6 se; based on size and trophs of closest relatives |
回復力 (参照 120179) |
高い, 15か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |