They were created by staking out the shallow lake bed and then fencing in the rectangle with wattle. The fenced-off area was then layered with mud, lake sediment, and decaying vegetation, eventually bringing it above the level of the lake.
Hmmm...I've seen temperate zone (zone 6) aquaponics in action. The key in any aquaponic system is balance, you must balance the available nutrition with the number of growing plants. If all of your plants die in cold whether then you will have to harvest all of your fish.
The system I worked with used a green house to maintain winter activity, so the outdoor portion of the water loop gets shut down in the winter (part of it reflects sunlight into the greenhouse), the fish get harvested, chickens are allowed to intermittently roost above the water to fertilize and winter greens and herbs are grown.
dale hodgins wrote:. I'll eventually look for a tenant who wants to raise dogs. Nothing dangerous, even little yap dogs will irritate raccoons and bears so they stay away. If I ever want bees, the hive would have to go inside some sort of bear cage.