The only hatchery fish i know of are the ones that return lateMay early June. I haven't heard of any others not to say there aren't. The size of the Kenai fish are smaller now. I think this is due to yes, the nets during the hayday of the red fishery and the pursuit of the trophy king up river. I think but may be wrong that when there are selective regs in the kenai you can still retain fish over 52 inches. Seems backwards. Thats the catch22 When the reds need to be harvested the kings pay the price.