How does Over Fishing affect Canada's physical systems?

      Over fishing affects Canada in many ways. 

     Ecosystems Destruction

     "According to marine ecologists, unsustainable fishing is the greatest threat to ocean ecosystems. This practice destroys the physical environments of marine life, and distorts the entire food chain in the oceans. If the food chain breaks, the consequences will ripple up and down to all the living organisms that are in the chain." (Eschooltoday). 

     Biodiversity

  

     "Marine life is amazing and balanced with millions of fish species and other marine animals. Constantly fishing for particular specie like the blue-fine tuna (which is people’s favourite), means soon that kind of fish will be extinct." (Eschooltoday).



     Over fishing can be very harmful to other plants and marine animal species because they could accidentally get caught in the fishing net, along with the fish. The people fishing don't mean to catch other marine species, but it often does happen. This can also affect the food chain. We are basically putting many other species at risk. 

(bite-back.com)

   

     As you can see from the picture above, many different things were caught in the fishing net that shouldn't have been caught.