Native (flat) oyster (Ostrea edulis) beds, once a major component of the North Sea, largely disappeared from the region in the late 19th century. Flat oyster restoration is taking place at a number of locations in the North Sea. When flat oyster beds are restored in areas where O. edulis is functionally …

Large floating projects have the potential to overcome the challenge of land scarcity in urban areas and offer opportunities for energy and food production, or even for creating sustainable living environments. However, they influence the physical, chemical, biological and ecological characteristics …

Large floating projects have the potential to overcome the challenge of land scarcity in urban areas and offer opportunities for energy and food production, or even for creating sustainable living environments. However, they influence the physical, chemical, biological and ecological characteristics …

With climate change and urban development, water systems are changing faster than ever. Currently, the ecological status of water systems is still judged based on single point measurements, without taking into account the spatial and temporal variability of water quality and ecology. There is a need …

Rijkswaterstaat has an effort-obligation and result-obligation to take measures to achieve the goals of the Water Framework Directive (WFD) at the Eastern Scheldt and Lake Grevelingen. The WFD aims to achieve and protect a sufficient ecological and chemical status of inland surface waters, transitional …

Water pollution by arsenic (As) is a problem in many areas of the world for both ecology and humans. To remove arsenic from surface water an environmental-friendly method called phytoremediation could be used. This method includes the usage of plants to accumulate toxins from any environmental soil, …

Urban delta areas require innovative and adaptive urban developments to face problems related with land scarcity and impacts of climate change and flooding. Floating structures offer the flexibility and multi-functionality required to efficiently face these challenges and demands. The impact of these …

Fish have the natural behaviour to move across various aquatic ecosystems and for some species this is of vital importance. Migration is often a seasonal phenomenon which occurs in order to move between habitats, such as winter refuges-, foraging- and spawning or nursery habitats, also escaping unfavourable …

De ecologische kwaliteit van het waterlichaam Bielheimerbeek is in de loop van de decennia’s verslechterd door menselijke invloed en ingrepen in het watersysteem. Het gevolg is dat het watersysteem matig scoort voor vissen en macrofauna. De maatregelen met ecologische doelstellingen zijn voor waterschap …

Blauwalgenoverlast is een jaarlijks terugkerend probleem in veel watersystemen. Door eutrofiering kunnen blauwalgen gaan domineren in watersystemen en neemt de waterkwaliteit sterk af. Water wordt troebel, biodiversiteit neemt af en er kan vissterfte optreden door een gebrek aan zuurstof. Daarnaast kunnen …