分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Perciformes/Percoidei (Perchs) > Percidae (Perches) > Etheostomatinae
Etymology: Percina: Latin, diminutive of perch = perch (Ref. 45335); williamsi: Named after James D. Williams, a contemporary ichthyologist, malacologist and natural historian extraordinaire.
Eponymy: Dr James ‘Jim’ David Williams (d: 1941) is a biologist and conservationist who worked in the Department of the Interior at the US Florida Fish & Wildlife Service and US Geological Survey (1974–2006), Florida Fish & Wildlife Conservation Commission [...] (Ref. 128868), visit book page.
Etymology: Percina: Latin, diminutive of perch = perch (Ref. 45335); williamsi: Named after James D. Williams, a contemporary ichthyologist, malacologist and natural historian extraordinaire.
Eponymy: Dr James ‘Jim’ David Williams (d: 1941) is a biologist and conservationist who worked in the Department of the Interior at the US Florida Fish & Wildlife Service and US Geological Survey (1974–2006), Florida Fish & Wildlife Conservation Commission [...] (Ref. 128868), visit book page.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 底中水层性.
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
North America: restricted to the upper Tennessee River drainage of Tennessee, Virginia and North Carolina, USA.
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 9.1 cm SL (female)
Max length : 9.1 cm SL (female)
简单描述 检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 11 - 16; 背的软条 (总数) : 12 - 13; 臀棘: 2; 脊椎骨: 44 - 45. Distinguished from all congeners, except Percina macrocephala, by having a sickle-shaped suborbital bar and a black bar subtending a medial black spot on the caudal-fin base. Differs from Percina macrocephala by having larger scales (usually 24-26 scales around the caudal peduncle vs. 27-31), 21-23 transverse scales (vs. 23-26), and 70-77 lateral scales (vs. 76-86). Has values for the combination of caudal peduncle, transverse and lateral scales and lateral scales usually 120-129 (vs. 128-141); has shorter snout on average; snout ranges from 20-28% of HL compared to 24-31 in Percina macrocephala (Ref. 75766).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Adfults inhabit flowing pools over rocky, sandy or silty substrates in clear creeks or small rivers (Ref. 75766). They occur most often near woody debris, vegetation such as water willow, or large boulders (Ref. 75766). Spawning takes place in gravel shoals in later winter (Ref. 75766). Migratory behaviour is undetermined (Ref. 126106).
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Page, L.M. and T.J. Near, 2007. A New darter from the upper Tennessee River drainage related to Percina macrocephala (Percidae: Etheostomatinae). Copeia 2007(3):605-613. (Ref. 75766)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v)); Date assessed: 20 April 2012
CITES
Not Evaluated
对人类的威胁
人类利用
FAO - Publication: search | FishSource |
更多信息
营养生态学
食物（猎物）
食性组成
食物消耗量
口粮
捕食者
食物（猎物）
食性组成
食物消耗量
口粮
捕食者
生态学
生态学
生态学
人口动态
成长参数
最大年龄/尺寸
长度-重量关系
长短关系
体长-频率
质量转换
入添量
丰度
成长参数
最大年龄/尺寸
长度-重量关系
长短关系
体长-频率
质量转换
入添量
丰度
解剖学
鳃区
大脑
耳石
鳃区
大脑
耳石
生理学
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
身体成分
营养素
耗氧量
游泳类型
游泳速度
视觉色素
鱼声
疾病与寄生虫
毒性（半数致死浓度）
遗传学
基因组
遗传学
异质性
遗传率
基因多样性
基因组
遗传学
异质性
遗传率
基因多样性
工具
特别资料
下载 XML
网络资源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: 属, 种 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录
基于模型的估算
|
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00575 (0.00270 - 0.01228), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
3.4 ±0.4 se; based on size and trophs of closest relatives |
|
回复力 (参考文献 120179) |
高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.). |
|
渔业脆弱性 (Ref. 59153) |
Low vulnerability (25 of 100). 🛈 |