分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Osmeriformes (Freshwater smelts) >
Osmeridae (Smelts)
Etymology: Hypomesus: Greek, hypo = under + Greek,mesos = a half (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 大洋性; 溯河洄游 (Ref. 51243). 溫帶; 73°N - 38°N (Ref. 26213)
North America: Sacramento-San Joaquin Delta region in central California, USA.
北美洲: 在美國加州中部中的薩克拉門托河- 聖約昆河的三角州區域。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 6 - ? cm
Max length : 12.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 6.3 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 1.00 年 (Ref. 12193)
背棘 (总数): 0; 背的软条 (总数): 9-11; 臀棘 0; 臀鳍软条: 16 - 20; 脊椎骨: 52 - 57. Vomer without posterior process; periphery of glossohyal bone with single row of conical teeth, central part toothless; pyloric caeca 4(2-5); base of adipose fin more than 20% of head length; eye large; adipose eyelid poorly developed.
没有在后部的突起的犁骨; 上舌骨的外围有单列的锥形齿，中央的部份无齿的; 幽门的盲肠 4;(2-5) 脂鳍超过 20% 的头长基底; 眼大的; 脂眼睑发展不良的。
Adults occur in open brackish and freshwater of large channels. Diet consists of zooplankton (Ref. 33312).
出现于大峡道的开放半咸淡水与淡水。 食物由浮游动物组成。 (参考文献 33312)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Eggs are demersal (Ref. 33312).北美洲: 在美國加州中部中的薩克拉門托河- 聖約昆河的三角州區域。
Saruwatari, T., J.A. López and T.W. Pietsch, 1997. A revision of the ormerid genus Hypomesus Gill (Teleostei: Salmoniformes), with a description of a new species from the southern Kuril Islands. Species Diversity 2:59-82. (Ref. 33312)
世界自然保护联盟红皮书 (Ref. 130435)
极度濒危 (CR) (A2bce); Date assessed: 17 February 2012
人类利用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00182 - 0.00758), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.1 se; based on diet studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (tm=1; tmax=1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
