Slug
Allow me to address each of your talking points in detail. It should help to clarify numerous misunderstandings about this fishery.
As you pointed out, some of the commercial harvest was in fact directed specifically at kings as the target species... those were the early run fish harvested out of the Northern District bound for Susitna Valley streams. Pretty interesting how a purposeful king fishery takes only 2000 kings while a so-called "incidental" king fishery harvests over 11,000 kings between the east side setnets and central drift fleet. Now which fishery looks like it's targeting kings? Wait, don't answer.
As far as gillnet selectivity goes, the only reason sockeye predominate the catch is they also predominate the overall return of salmon homing to Cook inlet in July.
It has NOTHING to do with the selectivity of the net. If five million reds are returning to the Inlet and there are only 50,000 kings, then it stands to reason that a completely non-selective net would catch salmon in the same proportion (5,000,000:50,000 or about 100:1).
If you look at the daily catch data for the east side setnets alone, you will see that no matter what day they fish, the king by-catch is on the order of 700-900 fish
7-15.........444.0K reds..........931 kings
7-16.........103.6K reds..........664 kings
7-17...........74.1K reds..........767 kings
7-18...........47.5K reds..........750 kings
7-19...........30.9K reds..........881 kings
What this data shows is that even when the red catch fluctuates by a factor of ten-fold, the king catch stays about the same. Now there are three ways to interpret this data:
1) The nets became 10 times less selective for sockeye between 7-15 and 7-19....
WRONG 2) The nets became 10 times more selective for kings between 7-15 and 7-19....
WRONG 3) The reduction in sockeye catch was a reflection of fewer sockeye moving thru the fishing area. If the nets fish, they catch kings no matter what! There is no selectivity for sockeye. To believe otherwise is ignorance or denial... take your pick.
You are right about the Inlet sport troll fishery taking some multiple of the commercial catch.... it just happens to be a multiple significantly less than one! At only 2000-3000 kings per year, the sport catch is only a fraction of the average commercial take.
Finally, your assertion of the in-river C&R mortality is flat out wrong. ADFG measures the C&R mortality annually, and this accounts for no more than several hundred fish each year. This is the smallest component of the overall exploitation of the run by all user groups. The nets "incidentally" kill more kings in one day than C&R does for an entire season!
BTW, I welcome constructive advice about eye surgery from any and all sources.... other surgeons, nurses, and most importantly, patients. All can make a meaningful contribution toward a more pleasant surgical experience and excellent surgical outcomes. Any suggestions?