Abstract
Daily measurements of temperature, salinity, chlorophyll, oxygen, mineral nitrogen and phosphorus, among others, were made in 1986-1987 at a fixed station located 3 km offshore from Cesenatico, Italy. Data were analyzed using statistical and time series techniques. Some of the salient features of the short-term variability (maximum period 60 days) of these time series are discussed and compared with those found in a similar study made during 1979-1980 at the same station. Besides variations in nutrient supply from rivers, meteorological events such as wind and pressure variations are the most likely forcing factors involved in causing the time series patterns observed.