What is Overfishing?
Overfishing occurs when more fish are caught than can be replace through natural reproduction.
Video from: http://therevolutionmovie.com/index.php/open-your-eyes/overfishing/intro/
What are the effects of Overfishing?
Humans have managed to wipe out 90 percent of the population of the ocean’s top predators in just 55 years! These are creatures such as sharks, bluefin tuna, swordfish, marlin, and king mackerel.
A study from 2006 in the journal Science predicted that if the fishing rates continued at the same pace, then all the world's fisheries will collapse by the year 2048. That is less than 30 years from now.
Bycatch is also a big problem and a byproduct of overfishing. Many animals that end up in fishing nets that aren't the target of fisherman. Animals like turtles, dolphins, sharks, and sea birds, get caught on fishing lines or pulled up by nets then tossed back into the sea, often dead, dying or injured.
What can be done?
Well, we can create more protected areas in the ocean and more "no fishing" areas across oceans, the effect of overfishing would be reduced and fish populations may begin replenishing themselves.
Currently, less than 2% of the world’s oceans are protected in marine parks! With less than one percent of the oceans being protected from any kind of fishing. More no-catch zones must be created to help encourage an increase in fish populations and to allow their ecosystems to recover and replenish themselves.