On the contrary... "farm-raised" fish are specifically bred -- without the (supposed) "mercury problems" in real ("natural" = polluted)) waters...
Secondly, as far as all scientists know... fish have no emotions or feelings. And there's never been any fish species, as far as I know, even nearly on the verge of extinction... but...
Are there a lot of households that keep tuna or salmon or whatnot as pets???
It must be tough taking them for a walk.
"After all, we are not communists"
Christopher Moltisanti: You ever think what a coincidence it is that Lou Gehrig died of Lou Gehrig's disease?
Tony Soprano: Yeah well, when you're married, you'll understand the importance of fresh produce.