over fishing is a big problem
Gathering as many fish as possible may seem like a profitable job, but over fishing has serious consequences. The results not only affect the balance of life in the oceans, but also the social and economic well-being of the coastal communities who depend on fish for their way of life.
Billions of people need fish for protein, and fishing is the principal livelihood for millions of people around the world. For centuries, our seas and oceans have been considered a limitless bounty of food. However, increasing fishing efforts over the last 50 years as well as unsustainable fishing practices are pushing many fish stocks to the point of collapse.
More than 85 percent of the world's fisheries have been pushed to or beyond their biological limits and are in need of strict management plans to restore them. Several important commercial fish populations (such as Atlantic blue fin tuna) have declined to the point where their survival as a species is threatened. Target fishing of top predators, such as tuna and groupers, is changing marine communities, which lead to an abundance of smaller marine species, such as sardines and anchovies.
sharks
Shark fin soup is a soup or broth of Chinese origin made with shark fin and flavored with chicken or some other stock. The fin itself has very little flavor and it is used primarily to add texture to the dish.
tuna
Over fishing causes Pacific blue fin tuna numbers to drop 96%
Atlantic halibut
in the North Atlantic Ocean, the Atlantic halibut is the largest of the flat fish species. They have 50-year lifespan, it can reach a length of 9 feet and weigh up to 1,000 pounds. But because this slow-growing fish doesn't mate until it's 10 to 14 years old, it's particularly susceptible to over fishing. Atlantic halibut are normally caught with hooks-and-lines. Scientists say that their numbers are not expected to recovery in the near future.