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Ophidiiformes (Cusk eels) >
Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Porogadus: Greek, poros = porous + Latin, gadus = a fish, cod? (Ref. 45335).
More on author: Garman.
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 245 - 3300 m (Ref. 125143), usually 1800 - 3300 m (Ref. 125143). Deep-water; 10°N - 0° (Ref. 125143)
Eastern Pacific.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 46.5 cm SL オス/雌雄の選別がない; (Ref. 125143)
簡単な記述
検索表 | 形態学 | 形態計測学
This species is distinguished by the following characters: precaudal vertebrae 17-19; lower first gill arch with long gill rakers 11-13; pectoral-fin rays 19-22; HL:HD 1.81-2.08; in small specimens, head spines strong, while in in large specimens short and poorly extruding, present on ethmoidal, lacrimal, prefrontal (weak), interorbital (weak), supraorbital (weak in large specimens), sphenotic, 5th infraorbital, supratemporal (absent in large specimens), inner and outer posttemporal (absent in large specimens), inner and outer preopercular rims (absent in large specimens); opercular spine is sharp, strong, extruding; maxilla with no or few scales at rear; lower lateral line pores until beginning of anal fin 22-24; vomer with a broad dentition patch
(3-9 rows of teeth); palatines with broad dentition patch (2-11 rows of teeth); otolith with separate ostial and caudal colliculi indicated by ventral incision; OL:OH = 1.75-2.1; OL:TCL = 1.8-1.9 (Ref. 125143).
Cross section: compressed.
Rare species (Ref. 34024). This species ventures out for about 800 km from the continental break and occurs primarily between 1800 and 3300 m but two specimens were caught in very shallow water at 245 m or near the surface. The reason for the unusual shallow catches are not known (Ref. 125143). Reproductive strategy possibly similar to other members of this family featuring oviparity, 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
Schwarzhans, W.W. and P.R. Møller, 2021. Revision of the ‘dragon-head’ cusk eels of the genus Porogadus (Teleostei: Ophidiidae), with description of eight new species and one new genus. Zootaxa 5029(1):001-096. (Ref. 125143)
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
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=0.00380 (0.00166 - 0.00868), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
栄養段階 (参照 69278) |
3.7 ±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) |
Moderate to high vulnerability (45 of 100). 🛈 |