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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Nezumia: A Japanese word that means "mouse" ; rara: Name from Latin adjective 'rarus' meaning 'sparsely occurring, referring to the species’ rare occurrence..
Environment: milieu / climate zone / depth range / distribution range
экология
морской донно-пелагический; пределы глубины 621 - 1100 m (Ref. 123356). Temperate
Northwest Pacific: Japan.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 45.0 cm TL самец/пол неопределен; (Ref. 123356)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 2; членистые (мягкие) лучи спинного плавника (общее число) : 10 - 11. This species is distinguished by the following characters: pelvic-fin rays 10-11; short snout protruding scarcely beyond upper jaw, its length 26-28% HL, ventral contour almost vertical in
lateral view; underside of the snout broadly naked; ventral surfaces of head scaled posterior to lateral angles of the snout; the mandibular rami mostly scaled; orbit-preopercle distance 39-41% HL; interorbital width 20-22% HL; pelvicfin length 46-54% HL; length of outer gill slit 13-16% HL; the second spinous ray of first dorsal fin is not extremely prolonged (height of fin 80-98% HL); body scales covered with short, greatly reclined, narrowly triangular spinules in tightly packed, convergent rows or densely scattered over the exposed part; tip of the last spinule in each row extending slightly beyond posterior scale margin; middle row of spinules are not enlarged; scales below the second dorsal-fin origin 9-10; presence of cephalic sensory pores along all canals, but barely discernible; absenc of the prominent dark band encircling the trunk; first dorsal fin uniformly dark (Ref. 123356).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
Nakayama, N., 2020. Grenadiers (Teleostei: Gadiformes: Macrouridae) of Japan and adjacent waters, a taxonomic monograph. Megataxa 3(1):1-383. (Ref. 123356)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00111 - 0.00431), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.1 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): низкий, минимальное время удвоения популяции 4.5-14 лет (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
