Assessment of the ecological conditions of the Góreckie Lake based on macrophytes

Abstract

The article presents the results of macrophyte research of the Góreckie Lake basing of the Macrophyte Ecological Status Index (ESMI). The field survey were done twice – in July 2013 and 2019 at the time of optimum vegetation. According to the methodology, filed survey were conducted by the 16 representative transects, with a width of at least 30 meters. The ecological conditions of the lake significantly improved in 2019, which is confirmed the higher value of the ESMI index, and the lake changed its ecological status from moderate to good. The positive changes evidenced by the intensive development of submerged vegetation and increased values of diversity and colonization the phytolitoral by elodeids. The results on the depth of occurrence of plant growth, confirms a gradual recovery teams macrophytes in the lake due to the increase in water transparency.

Keywords

• macrophytes
• esmi index
• góreckie lake
• surface water monitoring
• ecological state