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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.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
морской батидемерсальный; пределы глубины 245 - 3300 m (Ref. 125143), usually 1800 - 3300 m (Ref. 125143). Deep-water; 10°N - 0° (Ref. 125143)
Eastern Pacific.
Размер / Вес / Возраст
половая зрелость: Lm ?  range ? - ? cm
Max length : 46.5 cm SL самец/пол неопределен; (Ref. 125143)
Краткое описание
определительные ключи | морфология | морфометрия
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).
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
рыболовство: интереса не представляет
дополнительная информация
инструменты
Специальные отчеты
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 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). |
Трофический уровень (ссылка 69278) |
3.7 ±0.6 se; based on size and trophs of closest relatives |
устойчивость к внешним воздействиям (ссылка 120179) |
средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Preliminary K or Fecundity.). |
Уязвимость рыбной ловли (Ref. 59153) |
Moderate to high vulnerability (45 of 100). 🛈 |