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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.

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Human impact on the oceans

Human Impact on the Oceans

Presented by: Courtney Martinez


Topics covered
Topics Covered:

  • Acidification

  • Dead Zones

  • Over Fishing

  • The Garbage Patch


Acidification
Acidification

“OA” for short, is the term given to the chemical changes in the ocean as a result of carbon dioxide emissions


Acidification1
Acidification

Hawaii Carbon Dioxide Time-Series

Location of planned OA monitoring and research sites and affiliated NOAA labs


Acidification2
Acidification

How the oceans absorb carbon dioxide is critical for predicting climate change


Acidification3
Acidification

Figure showing the change in carbon chemistry relative to preindustrial carbon dioxide


Acidification4
Acidification

How the oceans store CO2 is critical for understanding the global carbon cycle


Acidification5
Acidification

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)


Acidification6
Acidification

In 2008, Oyster harvest plummets 80%

The Road to Remedy?

The IOOS Buoy


Topics covered1
Topics Covered:

  • Acidification

  • Dead Zones

  • Over Fishing

  • The Garbage Patch


Dead zones
Dead Zones

What causes a dead zone?

Where are they located?


Topics covered2
Topics Covered:

  • Acidification

  • Dead Zones

  • Over Fishing

  • The Garbage Patch


Over fishing
Over Fishing

Fleets = 2-3 Times

bigger than necessary

52% of Fish stocks

are “fully exploited”


Topics covered3
Topics Covered:

  • Acidification

  • Dead Zones

  • Over Fishing

  • The Garbage Patch


The garbage patch
The Garbage Patch

What is it made of?


The garbage patch1
The Garbage Patch

How is it formed?

What’s the problem?


Resources
Resources:

  • http://pmel.noaa.gov/co2/story/Ocean+Acidification

  • http://pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F

  • http://pmel.noaa.gov/co2/story/Ocean+Carbon+Uptake

  • http://pmel.noaa.gov/co2/story/Ocean+Carbon+Storage

  • http://www.noaa.gov/features/01_economic/pacificoysters.html

  • http://disc.sci.gsfc.nasa.gov/oceancolor/additional/science-focus/ocean-color/dead_zones.shtml

  • http://oceanservice.noaa.gov/facts/deadzone.html

  • https://www.naui.org/GreenDiver/GreenDiverContentDetail.aspx?Id=176&ContentTypeId=2&CategoryId=9

  • http://overfishing.org/pages/what_is_overfishing.php

  • http://overfishing.org/pages/why_is_overfishing_a_problem.php

  • http://overfishing.org/pages/what_can_I_do_to_help.php

  • http://www.mnn.com/earth-matters/translating-uncle-sam/stories/what-is-the-great-pacific-ocean-garbage-patch

  • http://en.wikipedia.org/wiki/Great_Pacific_Garbage_Patch


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