Monitoring the Kotychi Lagoon in Western Peloponnese, Greece, Using Remote Sensing Techniques and Environmental Assessment

The Kotychi Lagoon (western Peloponnese, Greece), together with other coastal wetlands such as Pappas, Prokopos and Lamia, is part of the wider area Strofylia Wetlands National Park Protected Areas Western which has been protected by Ramsar convention since 1971 classified a Natura 2000 due to its high diversity ecological value. This study aimed estimate water surface evolution using optical remote sensing techniques record parameters indices related geometrical landscape orientation features for 1945–2016 period evaluate environmental status lagoon through in-situ measurement sample analysis. High-resolution aerial photos at scale 1:30,000, orthomosaics, satellite images were used linear regression rates (LRR) calculated determine changes. Seasonal sampling water, sediment, macrofaunal organisms in was performed monitor parameters. results showed that lagoon’s shrank during period, showing different four segments. shrinkage prevailed northeastern southern parts lagoon, 17.75 6.46 m/year, respectively. determined be poor, although nutrient input seemed have moderate over period. We conclude applying combination high-resolution constitutes an effective accurate method spatiotemporal mapping wetlands. problems highlighted confirmed complementary analyses. These need addressed respective managerial bodies order restore good status.