At the living edge…
Permaculturist work with both the land and water, oh and the sun and wind too, but lets just look at some neat water stuff today. Sustainable aquaculture is a great way to increase biodiversity and beneficial relationships with in a landscape. Here is a great film to watch with permaculture farmer Sepp Holzer who created more than 70 ponds and wetland areas covering about 3 hectares on a Austrian mountain no less.
and here is a little film detailing the possibility for urban aquaculture!
For further exploration Tool-kit for Sustainable City Living is also a great resource for DIY urban aquaculture and aquaponics techniques.