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Ocean Dead Zones

A Report on the Hypoxic Areas in the World's Oceans
by

Rommel Galingan

on 24 January 2011

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Transcript of Ocean Dead Zones

Ocean Dead Zones What are Ocean Dead Zones? These are areas in the oceans wherein there is
a depletion of oxygen resulting in the death of
marine life. Runoffs from the fertilizers and pesticides cause an increase in the nitrogen contained in the oceans. Energy Independence and Security Act of 2007

Calls for the the production of 36 billion gallons of renewable fuels by 2022, including 15 billion gallons of corn-based ethanol = increase in nitrogen runoff Reversible? YES. But how? Increase Biodiversity


A study in Louisiana State University shows that where biodiversity of crops is high, there is less dissolved nitrogen found in the surrounding watersheds that eventually make it to the ocean. Reduction of the reliance in fertilizers would reduce the nitrogen runoffs. Sources:

http://www1.coseecoastaltrends.net/modules/dead_zones/learn_about/

http://en.wikipedia.org/wiki/Dead_zone_(ecology)

http://www.treehugger.com/files/2009/02/crop-biodiversity-ocean-deadzone.php

http://news.discovery.com/earth/dead-pigs-ocean-dead-zones.html

http://dsc.discovery.com/news/2008/12/18/meat-dead-zone.html

http://science.howstuffworks.com/environmental/earth/oceanography/dead-zone1.htm

http://www.emagazine.com/view/?3245

www.sugarcanecrops.com In the Philippines: Republic Act 9367 a.k.a. Biofuels Act of 2006

Called for the production of Ethanol from Sugarcane Reduction in the consumption of meat products. The fertilizers used contain nutrients particularly nitrogen and phosphorus This is caused by:
Stratification
Intensive Farming
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