They don't die, they just go endangered/extinct because sooooo many fishes are getting fished.
Ignorance and/or greed.
people who fish should have a laces for fishing and NOT overfishing
well a dolphin could get a plastic can ring stuck on his throat and die from suffocate caused by the plastic can ring.
Don't Fish
because when we fish it can kill other fish
Overfishing can be used to control fish populations and can be helpful in encouraging natural selection. Overfishing can also be very harmful as it causes fish populations to decrease, affecting all animals that rely on them for food. Overfishing has led many governments to reduce the required size of fish to one that is smaller than when the fish reproduce.
fish
You have already caught about 50 fishes today. You are overfishing!
Fishing faster than the fish can reproduce.
Japanese overfishing has reduced fish stocks.
Overfishing is caused by people catching too many fish, and then there ain't too many fish left. I think, however, that you meant results. Because your question makes no sense.
Bad for food chain
Yes they do, but not as many as there should be, due to overfishing.