environmental development new nature with canebrakes in dutch river ijssel

aerial alga algae aquatic bacteria bay blue bluegreen cane canebrake canebrakes coast color cyanobacteria development dutch ecology ecosystem environment environmental estuary eutrophication evolution green ijssel ijsselmeer island ketelmeer lake landscape mouth nature netherlands photosynthesis phytoplankton planktonic reed river scenic sea season slime summer view water wetland wildlife