The water quality in the Bergse Plassen does not meet the standards of the European Water Framework Dire...

The Sloterplas suffers from water with a low transparency and the water contains a lot of blue algae. Th...

Migration between polders and rivers, and between fresh and salt water is particularly difficult for fis...

Because of limitations of the designs, current fish passes are not used optimally by fish.

The fr...

Small fish passages are often located in areas were waterways are completely dry in the summer. The pass...

Anticipating water nuisance is becoming a more urgent matter. Climate change and urbanization increases ...

Undesirable saltwater intrusion occurs.