[Bacteriologic profile of the Andalien estuary (Chile). Count, biomass, and productivity]

Bacterial population, biomass and productivity from the Andalien estuary (Concepción, Chile) were investigated by measuring the viable counts and the total cell population by epifluorescence. There were differences in the viable counts obtained during fall and spring, but not in total counts. The bacterial productivity in the estuary and the nearest sea was increased during the spring, probably due to a larger proportion of metabolic active cells. The results also suggest an increased bacterial activity in the estuary and the nearest sea for the spring time.