S-steve. I'm 99.999% sure that in the early 1960s the Thompson R had a pure looking river color. A far cry from what it looks today. The river was not polluted as it is today.
Here's my assumption on the nightly tv news live report at 6:55pm to 7pm.
The Dfo heads & fish farm owners smile as they are told they are on air.
They chuckle & dig in to the baked farm salmon.
Next night we all tune in to watch them eat fried farm salmon.
The audience increases to record numbers & the other channels nearly have zero viewers.
Smoked farm salmon.
Canned farm salmon.
On & on...
After a few short years some of the Dfo heads & fish farm owners are being replaced by others,from their respective departments.
Now the talk of the town & rumours is they must of got replaced because of failing health.
Facts are the science department of either SFU or UBC came out in a major local newspaper, like 2 full pages & spelled out that the public should eat only one farm salmon per month.
Eating anymore the article stated would be bad for your health !!!
Think it was back about 15-20 years ago when I read it.
I do not forget certain things in life.
Hate to put bad food in my mouth that will go in, drop into my digestion area & into my bloodstream & into my cells.
Only eat 1 per month or else tells me the fish must be full of crap that will harm my body.
& I'm to hand over $$$ & enjoy the meal ?