To add to what Salmo said, enhancing Fall Chinook, especially Green Rivers, to benefit SRKW's is close to a waste of time. They need Springs and Summers, probably more than Falls as there are a reasonable number of Falls around. In order to reduce impacts to wild Springers and Summers we would need to concentrate in areas where they aren't. Samish Hatchery, Quilcene, Bernie Gobin, even the Cedar River Sockeye facility might be options. They each have terminal areas where uneaten fish could be harvested.

It is my understanding that age at adult is inherited, so if we selectively bred the toads we would still have to not fish on them to let the kids reach the older ages.

A fly in the ointment of going bigger fish is that in AK, size at age is going down. This is not a fishery-related size reduction but food related. And, the larger fish are dieing on the return migration as, with warmer water, they can't consume enough calories of the lower-quality food to maintain life. They starve on a full stomach.