Published Sep 10, 2004



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Carlos Alberto Rivera Rondón

Catherina Díaz Quirós

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Abstract
In 16 sampling points, which were located in 14 streams of the middle and high basin of the Bogotá River (2.617 - 2.988 m), we analyzed some physical, chemical and hydrological variables and the benthic algae community (taxonomic classes). By means of Principal Component Analysis, we concluded that the rivers respond to a basin area gradient and mineralization gradient. The streams are of the acidic order 1-4, and their flow rates are lower than 3.7 m3 s-1. The total nitrogen and total  phosphorus concentrations are lower than 7 mg l-1 and 1.4 mg l-1,  respectively. The benthic community is dominated by diatoms,  cyanobacteria and green algae. The basin area and mineralization gradients determine the dominant and co-dominant benthic algae class per stream.
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How to Cite
Rivera Rondón, C. A., & Díaz Quirós, C. (2004). GRANDES TAXONES DE FITOBENTOS Y SU RELACIÓN CON LA HIDROLOGÍA, FÍSICA Y QUÍMICA DE PEQUEÑOS RÍOS ANDINOS. Universitas Scientiarum, 9, 75–86. Retrieved from https://revistas.javeriana.edu.co/index.php/scientarium/article/view/5027
Section
Biología / Biology / Biologia