The project aims to implement part of the measures of the Action Plan for the implementation of the Water Development Programme 2017-2023 prepared in accordance with the requirements of Directive 2000/60/EC to improve the ecological status of the country’s water bodies and to assess the effectiveness of the pilot measures already implemented to improve the status of water. The improvement measures will include measures to enable the renaturalisation of the water level of Lake Ręyva to improve the ecological status of the lake, as well as one maritime measure, assessing the impact of trawling of fishing vessels on seabed integrity and providing recommendations for the assessment of the state of the seabed area