Overfishing

   Overfishing is a reoccurring issue that affects the ecosystem negatively. The seas were considered to be filled with an unlimited supply of food. However, a lot of significant commercial fish species are in danger of being extinct. There must be actions taken to restrict fishing for some species in order to maintain the balance in the ecosystem. For example, if we keep on fishing larger fish like tunas, we will be receiving a larger population of small marine creatures. 

Resources: https://www.worldwildlife.org/threats/overfishing

By: Daniel Kim