Adult Snake River spring/summer chinook from the 1995 and 1996 outmigrations
are returning at lower-than-expected rates, according to both the National
Marine Fisheries Service and the Idaho Department of Fish and Game. In
both years, tens of thousands of smolts were marked with PIT-tags in order
to compare smolt-to-adult survival (SAR) of transported fish with those
migrating in the river.
The "2-ocean fish" from 1995 returned last year while the
"3-ocean fish" are