分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Psalidodon: Greek, psalis, -idos = scissors + Greek, odous = teeth (Ref. 45335); togoi: Named for Carlos Togo, expert and pioneer of fish research in pampasic lagoons.
Eponymy: Carlos Togo was an Argentine ichthyologist, who, according to the etymology was: “…a great expert and pioneer of ichthyofaunal research in pampasic lagoons.” He co-wrote: Piscicultura experimental (1968). (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: Salado River system and tributaries of Río de la Plata in Argentina.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 57841); 6.8 cm SL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 35. This species can be distinguished from all its congeners, except Hyphessobrycon langeanii Lima & Moreira, in having a well-defined, round to horizontally oval humeral spot. It differs from H. langeanii by the possession of a second humeral spot (vs. absent), maxilla not reaching anterior edge of orbit (vs. maxilla reaching middle of orbit) and infraorbitals 3 and 4 separated (vs. coossified). Other diagnostic characters of H. togoi include: a short expanded maxilla with 1 large multicuspid tooth; premaxilla with an outer row of 3 small teeth, with 5 or 6 cusps, relatively apart from each other; an inner series with 5 teeth that are distally broader, with numerous cusps (6-11) and overlapping each other; iv-v, 17-20 anal-fin rays; 31-36 scales on the longitudinal series; presence of bony hooks on all fins of the mature males (Ref. 57841).
Body shape (shape guide): short and / or deep; Cross section: compressed.
In Buenos Aires province, this species is reported to be found in the Salado River and in ponds, marshes and creeks within the Salado basin. The Chascomús, Lobos and Lacombe lagoons are extensive water-bodies with abundant floating and submerged vegetation). These lakes are a portion of a lenthic environment system which is one of the most remarkable features of the wet pampa. Hyphessobrycon togoi is not abundant with respect to other species occurring in these lagoons, but it is sometimes caught in canals and flooded areas near the lagoons. The Salado River crosses Buenos Aires Province from northwest to southeast, running for ca 690 km in the Pampasia and finally draining into Bahía de Samborombón. The new species was also reported from Matanza River, a highly polluted environment draining into the Río de la Plata, where some of the most densely populated areas of Argentina lies along the middle and lower sections of this river, coupled with a high and complex industrial concentration (Ref. 57841).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Miquelarena, A.M. and H.L. López, 2006. Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina. Rev. Suisse Zool. 113(4):817-828. (Ref. 57841)
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=0.01738 (0.00796 - 0.03794), b=3.01 (2.83 - 3.19), 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) |
3.0 ±0.3 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 (14 of 100). 🛈 |
价格分类 (Ref. 80766) |
Unknown.
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