Friday, October 25, 2013

Can the YOLO Bypass floodplain be used to nurture salmon?

The Sacramento River runs high after a large rain storm, but in most years it has quickly drained away. Taking many salmon with it. But what if the floodplain was kept flooded for longer periods of time during the migratory salmon season. This past February researchers released thousands of juvenile salmon into a few rice fields being used as a bypass. The results were that the salmon had excellent growth and survival rates, and they posted the greatest grwoth rate in california history. Next year, they will let the fish swim freely instead of being in large pens. This will mimick more natural conditions. This experiment has shown that rice fields can be used as salmon sanctuaries during the spring and fall seasons. This will mean during more high flow period flooding times that the water will be retained longer. On average from three to six weeks. The YOLO floodplain is the largest floodplain left in the area.