Sunday, November 11, 2012

KC3 final draft



Humans are the main contributors to ocean ecosystem, but humans aren’t the only things that are polluting the ocean, nature is also a factor. The ocean has changed over the years, polluted runoff, sea level rising, over fishing, and illegal dumping.
  
Polluted runoff is the greatest threat to Hawaii surface and ground water quality. Polluted runoff results when storm water or irrigation water Moves pollutants off the land from farms, urban areas and construction sites into Hawaii streams and coastal waters. Polluted runoff can contribute greatly to ocean pollution because the chemicals that the runoff collects can flow into oceans and stream that can kill wild life and the environment

Sea level rise caused by melting sea ice and thermal expansion of the oceans could also cause problems for some coral reefs by making them too deep to receive a reasonable amount of sunlight which means that the coral would die. There like natures under water plants they still need sunlight in order to survive. But what global flooding does is that it makes the ocean levels so high that the coral reef cant even get any sunlight because the sun rays can go so far in from the surface that it doesn’t reach which means the coral reefs cant get the proper amount of sunlight.  

The need for seafood has risen which has allowed for fishing to become much more effective, allowing fishermen to catch at a much higher rate.  At such a high rate, the fish cannot keep reproducing as fast as the fishermen fish.  In 1900 there were at least six times more fish in our oceans than there are now. The results for overfishing include the destruction of ecosystems, lack of catch for fishermen.  Research on the world’s fisheries shows that 52% of fish stocks, and 1% is recovering from extinction.  Approximately 90% of the large predatory fish stocks are already extinct, which means the balance of the fish pollution can largely affect the ocean ecosystem that can lead to ocean depilation.

 The amount of illegal dumping has affected the ocean in a bigger way than any ocean pollutant that I have talked about in this essay. Oils that come from electricity plants are floating in the water which it increase the high of the ocean which becomes the rise of sea level which. The garbage that come from the nearby park can float wanderly until fishes come and eat the garbage from the illegal dumping that can throw off the balance of the fish population because they overfish makes the population number for fish go down the drain.

the ocean ecosystem can be destroyed in a number of years so we need to help out and