We have been fishing the Chinook size down for more than 100 years. Fisheries on juvenile immature fish over succeeding years remove the older fish. It takes older fish to get big. Where are the 5,6, and 7 year old adults?

Plus, and even more ominous, is that something is going on in the ocean that is reducing Chinook (and maybe coho) size at age. The previous reduction in size was primarily through age reduction. Now, the quality and quantity of food out there is bad. Some of this is due to competition with pinks. But, the really scary part to me is that food quality is declining. Less calories per unit consumed. What happens then is that the Chinook gets too big to eat enough to maintain life. They essentially starve. Many times, this has occurred on the trip "home". They just vanish. Die and sink.