分类 / 名称
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Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Stichonodontinae
Etymology: rubra: From the Latin adjective ruber (red), in allusion to the reddish coloration of the body, and the dorsal, adipose, and caudal fins in live specimens.
Eponymy: Dr William J Moenkhaus (1871–1947) was an American geneticist and ichthyologist who became Professor of Physiology at Indiana University Medical School (1904–1941), where he was Eigenmann’s colleague. [...] (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.
South America: Rio Juína and rio Juruena, rio Juruena basin, upper rio Tapajós drainage in Brazil.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 96859)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 11; 臀鳍软条: 20 - 23; 脊椎骨: 32. Moenkhausia rubra can be diagnosed from all congeners, except M. hemigrammoides and M. nigromarginata, by having dark pigmentation on the anteriormost rays of dorsal and anal fins. It differs from M. hemigrammoides and M. nigromarginata by having 17-20 branched rays on anal fin (vs. 20-22 in M. nigromarginata and 22-25 in M. hemigrammoides). It can be further distinguished from M. hemigrammoides by its dark blotch on the caudal peduncle extending to middle caudal-fin rays (vs. absence) and from M. nigromarginata by the lack of dark pigmentation on the anteriormost pelvic fin rays (vs. dark pigmentation present), dark pigmentation absent along the distal margin of anal fin (vs. presence) and lack of longitudinal black zigzag stripes between longitudinal rows of scales on body (vs. presence). It differs further from its congeners by the combination of the following characters: 5 or 6 scale rows above lateral line, 4 or 5 scale rows below the lateral line; 17-20 branched rays on anal fin; 33-34 scales on lateral line; 3-6 maxillary teeth; one round humeral spot; absence of reticulated color pattern on body; absence of a dark broad stripe extending from the opercle to the caudal peduncle; distal portion of caudal-fin lobes hyaline; and dark caudal-peduncle spot extending posterior to the middle caudal-fin rays (Ref. 96859).
Body shape (shape guide): fusiform / normal.
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Pastana, M.N.L. and F.C.P. Dagosta, 2014. Moenkhausia rubra, a new species from rio Juruena, upper rio Tapajós basin, Brazil (Characiformes: Characidae). Neotrop. Ichthyol. 12(2):389-396. (Ref. 96859)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 潜在的兴趣
工具
特别资料
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网络资源
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]. |
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Bayesian length-weight
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a=0.01318 (0.00554 - 0.03136), b=3.10 (2.91 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.3 ±0.5 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 (12 of 100). 🛈 |