PLANKTONIC AND BENTHIC ALGAE OF A PAMPEAN RIVER (ARGENTINA) - COMPARATIVE-ANALYSIS

In Buenos Aires province, the river Samborombon, which is typical of t he plain, was sampled monthly during 1986-1987 in research carried out both on its physico-chemical characteristics and the communities pres ent - plankton, phytobenthos, zoobenthos-. In this paper the structure and function of phytoplankton and benthic algal communities in the di fferent sections of the river are compared. Both communities have defi nite limits as their components are not shared and show different stra tegies. Likewise, the environmental conditions along the river are var iable, leading to differences in the planktonic and benthic algae at t he locations studied.