Mind the streams please

http://data360.files.wordpress.com/2009/05/stream.jpgSmall streams are essential for keeping our connection with nature  especially near human populated environment.  Microscopic life begets insects and fish which supports the riparian ecology, which inturn feeds birds and larger mammals such as, bear and coyote. What can we do to preserve and promote the awareness of the fragility of life in these streams An example used in British Columbia, Canada is to engage school children to paint fish symbols on street  grate that flow into the natural water system is one way. This reminds people that what goes into the grate will eventually make its way to the local streams. Another is keeping the banks natural, not creating concrete walkways or walls close to the stream. What are some other practices that will raise awareness and  help us  protect our urban waterway?