Jeff, this was from computer. tried direct attaching, and also linking to imgur.
Tim, as far as kings running, yes and no. There's always been a few early-running kings, and some late. Just natural variability, similar to some kids hitting puberty early or late. We typically have a handful of kings in Trail Creek in late July/early August, but the bulk of the run is in Sept/Oct
It's also related to the environmental conditions in any given year. Factors such as lake temps, river temps, amount of bait nearshore and offshore, etc. If you have fat kings, their gonads could be mature early, and if you have upwelling of cold water, some rain in the tribs, and not much bait around, those conditions might favor an early push of kings. If you have skinny fish, warm water near shore, and lots of bait offshore, maybe the fish hold off running until their internal clock tells them its now or never
That said, some Michigan rivers are known for early runs of kings - particularly the Little Manistee, because they shut the weir down and close upstream migration on August 15th. Over time, that places pretty heavy selective pressure on the kings. Meaning, the fish running prior to August 15th are the only ones that get upstream and have access to spawning habitat. Over the decades of that happen, that selective pressure has created an early run on the Little Manistee, because the successful reproduction is from early running kings, and that trait has been gradually selected for