005200000a22001450004500 AS Seriadas Temporal and vertical variations in phytoplankton community structure and its relation to some morphometric parameters of four colombian reservoirs Inglés Bicudo, C. E. de M. 99372 Roldán Pérez, Gabriel 2082 García L., L. C. 99373 Ramírez R., J. J. 99374 ARTICULO Caldasia 45 1 108-126 2000 22 14806 14806