Couple of comments:
-Education involves considerably more than just reading books.
-It is telling that you need to reach so far back in time for an example of heretics rewriting the rules. It is also telling that you neglect to consider that most discoveries of the nature you described were a result of someone applying a primitive version of the scientific method, a process that didn't really come into play in an evolved form until the 18th and 19th century, to discount knowledge based on superstition.
-what's good for the goose is also good for the gander. Discount my education and you also discount the education of everyone including those who attack salmon farms. That is an inevitable consequence since we all start from the same body of knowledge that has been building since the scientific method began to be applied as the standard procedure for expanding knowledge. We might just as well go back to throwing the bones to obtain pertinent answers if you choose to do that. In some specific instances where the opposition to the collected knowledge is based on dire predictions and unproven accusations of both malfeasance and conspiracy, it appears that is precisely what is being done.
- It wasn't a primitive scientific method. For that time it was a top notch scientific method. Just like your scientific method is top notch for this time and will be primitive 100 years from now.
All I'm saying is anyone dealing in absolutes, like some scientists do, don't really understand the depth of their stupidity.
In other words all you know is what is being fed to you. Unless you have discovered it on your own, which most scientists don't have opportunity to do.
Unfortunately there is no law that puts scientist in jail for propagating falsehoods or protecting their own interests and there should be.
If it's ever discovered that DFO or any regulatory body covered up and hid evidence of problems with fish farms to protect their jobs, I would like to grind them all into fertilizer for rivers so that at least that way they be of some benefit to the environment.