分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Nezumia: A Japanese word that means "mouse" .
More on author: Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 非迁移的; 深度上下限 366 - 1620 m (Ref. 1371), usually 500 - 600 m (Ref. 1371). 深水域; 24°N - 17°S, 22°W - 13°E (Ref. 1371)
Eastern Central Atlantic: Western Sahara south to Angola.
東大西洋: 西撒哈拉南至安哥拉。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 34.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 1371)
背棘 (总数) : 2; 背的软条 (总数) : 140 - 141. Head large; eyes also large; snout short, narrow, bluntly acute, with a small bifid scute at its tip. Head completely scaled except for underside of snout. Body tapering to a point posteriorly from behind the origin of the first dorsal fin base. Pyloric caeca 20. Spinules on scales broad, shield-shaped. Overall color is brownish to swarthy; trunk bluish to violet; fins blackish; mouth and gill cavities gray to blackish.
头部大的; 眼也大的; 吻短的，狭窄的, 钝地尖锐的, 在它的顶端具有一个小的两裂鳞甲。 头部鳞片覆盖完整除了吻部下面。 身体在后部地从在后第一背鳍基底的起源渐渐变细成一个尖点。 幽门盲囊 20. 在鳞片上的小刺宽的, 遮蔽-形状的。 整体的色彩是褐色的到黑黝黝的; 躯干蓝色的对紫罗兰色; 鳍黑色的; 嘴与鳃腔灰色到黑色的。
Specimens from northwestern Africa feed primarily on faunal organisms, especially polychaetes (90% of contents) and a variety of small crustaceans. Smaller individuals (30-40 mm head length) feed mostly on epibenthic organisms, especially the copepod Aetidopsis carinata (Ref. 6219).
来自非洲西北部的标本主要捕食动物区系的生物，尤其多毛类的 (90% 的内容) 与多种小型甲壳动物。 较小的个体 (30-40 mm 头长) 大部分吃浅海底栖生物, 尤其桡脚类的动物 Aetidopsis carinata.(参考文献 6219)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
東大西洋: 西撒哈拉南至安哥拉。
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
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Estimates based on models
Preferred temperature (Ref.
123201): 6.2 - 8.7, mean 6.8 °C (based on 8 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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).
营养阶层 (Ref.
69278): 3.2 ±0.31 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
