I love fishing. Deep Sea, Fly Fishing, even trapping a fish with a Fish trap. Do you like to fish?
Before i say, we are talking about catching fish in the wild as opposed to farmed fish, is that correct?
Yes. I have no interest in going to a pond stocked with fish or something. I live right on the Atlantic Ocean so I fish a lot. 
I am at the opposite extreme, i believe one should only catch fish at a fish farm, or pisciculture center, where they are raised in tanks or ponds for human consumption.
That's not natural. Those fish have not lived life. Do you also believe we should eat chicken or beef that was raised in a small cage?
Well, that IS how farm animals are raised in the US.  Fish farming is known as aquaculture and fishing in the sea or lake is known as mariculture.
That's interesting. But farm fish is pumped full of meds and such to make them grow faster. That can not be healthy. 
And intensive farming or beef, pork or chicken is maximizing output while minimizing costs.  Same thing in both cases.  You hold contradicting beliefs.
I live in the country all our meat we visit the farm before we buy it. Currently I have a half cow and half hog in my freezer that Amish raised on a farm in a real field. 
What about when you go to a Mcdonalds either here or in one of their restaurants in 119 countries.  Do you believe that meat comes from cows who are free range in a pasture?