分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Characidae (Characins; tetras)
脂鯉科 (Characins; tetras) > Stethaprioninae
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335); togoi: Named for Carlos Togo, expert and pioneer of fish research in pampasic lagoons..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
South America: Salado River system and tributaries of Río de la Plata in Argentina.
南美洲: 在阿根廷的 Salado 河流域與拉布拉塔河的支流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 5.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 57841); 6.8 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
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).
除了 Hyphessobrycon langeanii 利馬 &Moreira 以外,這種能被與它所有的同類區分, 在有一個方面很清晰, 水平橢圓形的肩部斑點的圓。 它有別於 H. langeanii 被擁有一個第二個肩部的斑點 (vs. 不存在) ，不被達到被分開的眼窩 (vs. 達到眼窩的中央顎骨) 與眶下骨 3 與 4 的前緣的顎骨.(vs. coossified) H. togoi 的其他鑑別特徵包括: 擴大顎骨的一個短 1 大的多犬齒牙齒; 前頜骨有一個 3個小的齒的外部列, 5 或 6個尖頭, 相當彼此分開; 內部的系列 5 齒那是末梢部比較寬又有很多的尖頭 (6-11) 與部分重疊的彼此; iv-v, 17-20個臀鰭棘條; 在縱向的系列上的 31-36個鱗片; 在成熟雄性的所有鰭上有多骨的鉤。 (參考文獻 57841)
描述: 胸鰭鰭條 i ， 9-11. 腹鰭鰭條 i ， 6-7 ，腹鰭有腋窩的羽翼鱗片。 臀鰭棘條 iv-v, 17-20.
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).
在布宜諾斯艾利斯省，這種被報告被發現於 Salado 河與在 Salado 流域裡面的池塘，濕地與小溪中。 Chascomus, 北美北部產的灰色大狼與勒科姆種豬潟湖是廣泛的水體有豐富的漂浮與水中植物). 這些湖是濕 pampa 的最顯著特徵之一的 lenthic 環境制度的部分。 Hyphessobrycon togoi 不豐富相對於其他的出現在這些潟湖的種, 但是它有時被在潟湖附近的管與洪泛區捕獲。 Salado 河越過從西北到東南的布宜諾斯艾利斯省, 為 ca 競選 690 公里在 Pampasia 中與最後注入進入 Bahia de Samborombon 之內。 新種也被記錄自 Matanza 河, 高度污染的環境進入拉布拉塔河之內注入, 在哪裡一些最，濃密地人口稠密阿根廷的區域躺臥沿著這一條河的中下游的部分, 結合高與複雜的工業集中.(參考文獻 57841)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 在阿根廷的 Salado 河流域與拉布拉塔河的支流。
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00671 - 0.02974), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.9 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
