Donut Don opined to the use of live bait question:

Here in Oregon it is illegal to use live bait. Some very selfish
people trying to catch the "big one" introduced Tui chub to several
lakes. These Tui chub eventually crowded out the game fish in many
lakes, most notably Diamond lake.

Um...It's a little more complex than that Don. Oregon DF&W is trying to
minimize their costs.

Here are the facts. Out here in the West a live bait fish species in one
watershed can sometimes wreck havoc when transported over the hill and
introduced into the next watershed. The disaster is often magnified when the
species is removed from a river, with natural enemies, and planted into a
lake that is either man-made or a lake like Diamond Lake that did not have
naturally occurring fish. Diamond was trout-stocked for over 100 years. It
was stocked with rainbow trout derived from the McCloud River, south of the
Klamath basin. ODF&W, like most states, used the McCloud strain because it
is hatchery-friendly; low cost, disease resistant, high yield,
transportable, etc. El Cheapo.

The tui chub is indigenous to the Klamath River basin just a few miles south
of Diamond Lake. But this is not the first tui chub disaster in Diamond
Lake - it happened in 1954! The rotenone cost to kill the tui chub back then
sure wasn't the $10 million+ it costs today! So last September they planted
a trout species that feeds on minnows. (Sounds like BC's Blackwater
species??) I have not seen any research that showed just how this specific
trout species is ideally suited to a high elevation, high desert sunken
volcano lake. I am not sure how well the re-introduction will go. Time
will tell.

You said the tui were planted by "Some very selfish people trying to catch
the "big one.""
There is no evidence that the illegal plantings were done by "very selfish
people" or anybody "trying to catch the big one." It could have been people
with lack of education, or knowledge of the law. It also could have been
some Looney biologist or lazy hatchery employee. Who knows? Who cares? You
can bet it'll happen again. And if the new trout species they planted go for
minnows in a big way instead of marshmallows, Powerbait, worms, cheese and
the like, I bet there will be many more tui used at Diamond in the future
regardless of all the money spent trying to catch the people illegally
fishing with live tui chub bait.

Yes it's illegal to use live bait in Oregon. But not just to protect the
resource. Although Diamond is the headwaters of the Umpqua, it can be sealed
off and treated as a big laboratory. ODF&W can keep throwing money at the
problem and maybe someday they can solve Diamond's problem. Sadly there can
never be enough laws nor money to solve all the other waterbody problems and
few are as self-contained as Diamond Lake.

John