Silvinichthys huachi Fernández, Sanabria, Quiroga & Vari, 2014
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Siluriformes (Catfishes) > Trichomycteridae (Pencil or parasitic catfishes) > Trichomycterinae
Etymology: huachi: The specific name is in reference to the type locality of the species, Río Huertas de Huachi. A noun in apposition.
Eponymy: Dr Silvina Adela Menu-Marque is an Argentinean zoologist at the Department of Biological Sciences, University of Buenos Aires, where her doctorate was awarded (2002). [...] A toponym, referring to the type locality; the Río Huerta de Huachi in Argentina. (Ref. 128868), visit book page.
Etymology: huachi: The specific name is in reference to the type locality of the species, Río Huertas de Huachi. A noun in apposition.
Eponymy: Dr Silvina Adela Menu-Marque is an Argentinean zoologist at the Department of Biological Sciences, University of Buenos Aires, where her doctorate was awarded (2002). [...] A toponym, referring to the type locality; the Río Huerta de Huachi in Argentina. (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 居于水底的. 20°C - ? (Ref. 95056)
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Río Huerta de Huachi in Argentina.
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 11 - 13; 脊椎骨: 37 - 39. Distinguished from Silvinichthys bortayro by the following characters: triangular shape of the head from a dorsal view (vs. more rectangular); 8-11 (vs. 2-4) opercular odontodes and 21-28 (vs. 9-12) interopercle odontodes apparent in cleared and stained specimens; 11-13 dorsal-fin rays (vs. 9); caudal-peduncle depth 8.8-10.9% SL (vs. 8.0-8.3% SL); snout length 43.3-61.9% HL (vs. 38.2-40.5% HL); head with broadly separated, dark, marmorated bands of pigmentation and body with a more concentrated, but still diffuse, patch of darker pigmentation overlying the dorsal surface of the cranium and the dorsal portions of the pectoral girdle (vs. lacks the dark marmorated pigmentation in larger individuals); absence of dark midlateral stripe on the caudal peduncle at all sizes (vs. presence of a dark midlateral stripe in mid-sized specimens). Differs from S. gualcamayo by the caudal peduncle length 19.3-21.5 % SL (vs. 22.0-23.9% ) and the insertion point of the first proximal dorsal-fin pterygiophore is posterior to the neural spine of vertebra 21 (vs. 22); from S. leoncitensis by having 37-39 vertebrae (vs. 40), 16-18 ribs on each side (vs. 20); 6-7 pectoral-fin rays (vs. 8), body depth 12.6-16.5 % SL (vs. 8.4-12.2% SL), caudal-peduncle depth 8.8-10.9% SL (vs. 6.6-8.6% SL), and the insertion point of the first proximal dorsal-fin pterygiophore posterior to the neural spine of vertebra 21 (vs. 23); and from S. mendozensis by the absence of pelvic fin and pelvic-fin girdle (vs. presence) and 21-28 (vs. 30-42) interopercle odontodes apparent in cleared and stained specimens (Ref. 95056).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
The type locality is a clear water stream with depth of 0.06-0.30 m and width of 1.5-2.0 m over a rock and cobble bottom, water temperature of 19.7°C and surrounded by limited riparian vegetation. Nocturnally active with individuals observed swimming during the night and hiding among rocks on the stream bed during the day. Stomach contents of 2 specimens consisted of dipteran larvae (Chironomidae) and sand, suggesting that this species feeds on autochthonous benthic macroinvertebrates. Spawns before April since observations during that month in 2009 revealed that its population at the sampling site contained larger numbers of juveniles than adults (Ref. 95056).
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 : Pinna, Mário de | 合作者
Fernández, L., E.A. Sanabria, L.B. Quiroga and R.P. Vari, 2014. A new species of Silvinichthys (Siluriformes, Trichomycteridae) lacking pelvic fins from mid-elevation localities of the southern Andes, with comments on the genus. J. Fish Biol. 84(2):372-382. (Ref. 95056)
CITES
Not Evaluated
对人类的威胁
人类利用
渔业: 没有兴趣
FAO - Publication: search | FishSource |
更多信息
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
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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
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系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00759 (0.00332 - 0.01733), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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营养阶层 (参考文献 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
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渔业脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |