The charts nice! Hard to believe there's an upward trend with all the bad news we always here. Definitely an upward trend on that chart though. Maybe we're getting slowly but surely getting somewhere.
They use big traps to catch the out-migrating smolts on their way downstream. Spawner surveys consist of hiking the tributaries and counting redds, jet boating and drift boating the rivers and counting redds, and when water clarity allows for it they use a helicopter to survey for redds in the late spring. Lots of boots on the ground and field work goes into spawner surveys. Less staff=less people to do this work.
Here's what a smolt trap looks like
- smolt trap.jpg (40.37 KiB) Viewed 8874 times