Found over organic detritus and decomposing vegetation, apparent water color was brown to black, low dissolved oxygen (0.42-0.75 mg/l), as was conductivity (42-43 ?s) and oxygen saturation (5.3-10 %), slightly acidic pH (6.0-6.2). Five stomachs of cleared and stained specimens indicate a diet mostly composed of algae, Clorophyta, Vlothix (47.72% N, 22.72%V); also present are Cladocera, Alonella (20.45% N, 13.63% V); Clorophyta, Spirogyra (17.04%N, 9.09%V); insect parts (9.09%N, 18.18%V), dipteran larvae, Tabaridae (5.47% N, 5.47% V); Ephemeroptera, Oligoneuridae (1.13%N, 4.54%V) and unidentified digested material (27.27%V) (Ref. 84248)..
- GarcÃa-Alzate, C.A., C. RomÃ¡n-Valencia and D.C. Taphorn 2008 Two new species of Hyphessobrycon (Pisces: Characiformes: Characidae) from Putumayo River, with keys to the Colombian Hyphessobrycon heterorhabdus-group species. Brenesia 70:33-46. (Ref. 84248) http://www.fishbase.org/references/FBRefSummary.php?id=84248&speccode=65534
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