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Hesperoleucus symmetricus (Baird & Girard, 1854)

California roach
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Hesperoleucus symmetricus
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分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Leuciscidae (Minnows) > Laviniinae
Etymology: Hesperoleucus: Greek, hesperos = the land of the west + Greek, leukos = white (Ref. 45335).
More on authors: Baird & Girard.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的. 溫帶; 43°N - 35°N

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

North America: Sacramento-San Joaquin, Russian, Pajaro-Salinas and smaller coastal drainages in California, USA.
北美洲: 薩克拉門托河-聖約昆河與在美國加州的 Pajaro-Salinas 河河流域。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 5723); common length : 8.3 cm TL 雄鱼/尚未辨别雌雄; (Ref. 12193); 最大年龄: 5 年 (Ref. 72464)

简单描述 检索表 | 型态特徵 | 形态测量图

背的软条 (总数) : 7 - 10. Mouth slightly subterminal; body deep, compressed, tapering to narrow caudal peduncle; dorsal-fin origin behind pelvic-fin origin; caudal fin large; scales on lateral line 47-63; dorsal fin with 7-10 rays; pharyngeal teeth 0,5-4,0; dusky gray to steel blue above; dark stripe along side; silver white below; and breeding individuals with red orange-chin, gill cover, and anal and paired-fin bases (Ref. 86798).

生物学特性     字汇 (例如 epibenthic)

Inhabits rocky pools of headwaters, creeks and small to medium rivers (Ref. 86798).

栖息于河川源头，小溪及小型到中型河川的岩石水池。

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

北美洲: 薩克拉門托河-聖約昆河與在美國加州的 Pajaro-Salinas 河河流域。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)

  最不相关 (LC) ; Date assessed: 24 February 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00439 - 0.02869), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.4   ±0.2 se; based on size and trophs of closest relatives
Generation time: 2.0 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (K=0.5).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (24 of 100).