Section 3 Of The Contest: Conducting Samples Of Fishery, Conduct Sampling At Crete Lakes Monitoring Stations And Recognition And Counting Of Plant Lake Samples Of The National Monitoring Network In Mainland Greece-Crete. The Subject Of The Service "Recognition And Counting Of Phytoplankton Samples By 71 Lakes Stations Of The National Monitoring Network In Mainland Greece-Crete" Is The Recognition And Counting Of The Phytoplankton Samples Of The Lake Stations In Mainland Greece And Crete According To The Crete. Ris/Dpsp/107168/1444/2021.