I understand the success of the pen rearing and the eagerness to do so. My point is uncontrolled enviromental factors while raising the fish in the pens. What if Kodak accidentally leaked something up river, a gasoline tanker crashed on Rt. 18 and its contents ended up into the sandy creek watershed, for some unknown reason the water temps fluctuate drastically while raising the fish etc. etc. yes these are unlikely events, however there is outside chance uncontrolable events such as these could occur. If they did your putting ALL you future fish at risk. By dividing up the hatchery stock, some pen, some lake, you are helping to guarantee at least some of the fish stock could avoid such an event.