Biological production in the sea water can be limited by the presence of nutrients like nitrogen and phosphorus.The Mediterranean presents a strong west to east gradient in nutrient deficiency that results in a high oligotrophiceastern Mediterranean basin.These conditions can be affected by the atmospheric deposition of nutrients to the marine environment,process that is strongly affected by the humans.There are published studies that support the fact that the most limiting factor for primary production in the East Mediterranean sea is phosphorus.In the present study,atmospheric deposition measurements of nitrogen and phosphorus over Crete island in the East Mediterranean are coupled with the seawater observations of nutrient availability and chlorophyll by the mean of a 1-dimensional ocean biogeochemical model to evaluate the impact of the atmospheric deposition and its temporal variability on the marine primary production in the area.The first results are presented and discussed.