Fluctuación diaria del fitoplancton en la capa superficial del océano durante la primavera de 1997 en el norte de Chile (20°18′S): I. Biomasa Pigmentaria

Abstract

The response of phytoplanktonic biomass to the changes in the physical and chemical structure produced by an upwelling event is analyzed in a daily scale. The results show a physical-chemical coupling, and a high spatial and temporal variability in the cholorophyll concentration. The response of chlorophyll was characterized by a two or three days lag to favorable conditions, and a change in the phytoplanktonic fractions responsible of the most important concentration was observed. The study period coincided with "El Nino" 1997-1998 presence, but the results do not show anomaly conditions associated with this event.