Marine Overfishing

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There is growing evidence that the increased amount of the fishing activity in the entire world is having a very serious effect on the health of the oceans as a whole. When commercially valuable species are overexploited, other species and habitat that share the same ecosystem are affected. According to many marine scientists and marine ecologists, unsustainable (overfishing) fishing is the greatest threat to the ocean ecosystems. For example, recent scientific studies suggest that overfishing of large shark species has had a ripple effect in the shark's food chain, increasing the number of species that are sharks’ victims, such as rays. Rays are usual prey for large sharks, which result in the declining stocks of smaller fish and shellfish …show more content…
This is an infamous example of the ever so terrible bycatch. Killing these unintended species can have colossal effects on marine ecosystems, more specifically, the food chain. Despite having one of the most regulated and protected fisheries in the world, Canada has not been immune to the subject of the effects of overfishing. The unfortunate collapse of the Atlantic Canadian cod fishery in the 1990s is one of the most commonly cited examples of overfishing and its economic, social and cultural implications of the world.Today, overfishing still remains a threat to the social and economic welfare of many countries and their oceans, but none more so than in developing island countries. Fishing is not only an important factor of these economies, in many cases it is the main element in the traditional diet of its citizens. In many African and South Asian coastal nations, fish may account for as much as 50% of the protein in a typical diet. That is huge, considering how big of a population those countries

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