You have concerns? You live in Minnesota, not California. I live in California and have zero concerns about seeing motoros pop up in local reservoirs. You know nothing about the climate or ecology of the state. You did not give a valid reason as to why they are banned, you just said because the government says so, which is not a valid reason (freeing blacks from slavery was illegal, was that bad?)
If that is all you have to say, fine. But do not slander and make up lies about potamotrygon species.
There are zero concerns about rays being released in California's springs, and they are not a threat to public health. It's a shame to see a MFK veteran making such ignorant, unbased statements.