What is overfishing
The problem is that we are taking too many fish out of our oceans. Massive increases in populations have raised the demand for fish to unsupportable levels. To catch enough fish to satisfy human demand means that some species will become extinct.
Overfishing not only effects the fish stocks but it is also disastrous to the people who rely on the harvest. This effects not only the people who eat it but the jobs of the people who catch them and the lives of the other sea creatures which we don’t catch but which depend on the fish which are becoming extinct for their own food. A lot of locations have almost crashed because of Overfishing. Companies are overharvesting the fish in our oceans, eventually, they will go out of business.
High tech fishing fleets are the main problem, not the individual fishing activities. A lone fisherman feeding his family does limited damaged but huge trawlers with nets, drift netting, long lining, fish finders and a host of other equipment are causing the most problems
If overfishing continues as it is, worldwide fish stocks will be gone in 50 years. Many are already close to commercial extinction. Commercially extinct, means not worth fishing.