Human Impact on the Oceans. Presented by: Courtney Martinez. Topics Covered:. Acidification Dead Zones Over Fishing The Garbage Patch. Acidification. “OA” for short, is the term given to the chemical changes in the ocean as a result of carbon dioxide emissions. Acidification.
Human Impact on the Oceans
Presented by: Courtney Martinez
“OA” for short, is the term given to the chemical changes in the ocean as a result of carbon dioxide emissions
Hawaii Carbon Dioxide Time-Series
Location of planned OA monitoring and research sites and affiliated NOAA labs
How the oceans absorb carbon dioxide is critical for predicting climate change
Figure showing the change in carbon chemistry relative to preindustrial carbon dioxide
How the oceans store CO2 is critical for understanding the global carbon cycle
CO2 uptake is not the same as carbon storage. Anthropogenic CO2 absorbed in one region may be moved by ocean circulation and ultimately stored in a different region.
Map of the column inventory of anthropogenic CO2 in 1994 (Sabine et al., 2004)
In 2008, Oyster harvest plummets 80%
The Road to Remedy?
The IOOS Buoy
What causes a dead zone?
Where are they located?
Fleets = 2-3 Times
bigger than necessary
52% of Fish stocks
are “fully exploited”
What is it made of?
How is it formed?
What’s the problem?