"Willi" wrote in message
...

In absolute terms it is possible but it would be TOUGH to exterminate a
viable trout population with just hook and line.

The impossible is intractable.....it can sometimes take years. The TOUGH we
can do in about a month......in bad weather.

However, in most
places, it isn't difficult to severely lower the population.

I got a crew can do that in 72 hours on any trout stream in the world.

The
extermination of all the native trout I'm aware of, was either caused by
changes in the environment like increased water temperature, pollution,
etc or the leading cause, in most cases, the introduction of non native
trout and other fishes.

I can see no fault with that argument.

Wolfgang