Idiot, retard. There is no reason to catch lots of fish. You have to fish how much you can eat, no more than that.
Fish spoil very fast and the oxidized cholesterol in fish meat promote arterosclerosis.
Fats in meats oxidize faster in this order: fish, chicken, pork, lamb, beef. The best fat to eat is fish but is the most perishable one. You have to eat it fresh. Even if you store it in sealed vacuumed bags in dark frizer the meat/fat will become oxidized in time. Stay away from non-fresh fish meat. Mind your limit.