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Narrative: Ocean Acidification
Slide 09: Pteropod Shell (images)
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Narrative: Ocean Acidification
Slide 09: Pteropod Shell
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Slide 09:  Pteropod Shell

Slide 09: Pteropod Shell

Say:

We are already seeing the effects of ocean acidification right here in the Pacific Northwest {region} and around the world.

Here is a microscope image of what we just saw; this is what happens to shells when they are exposed to these conditions.

You can see the shell of the pteropod exposed to ocean acidification on the right, is weaker and has visible damage, making it harder for the animal inside to survive.

How widespread is this problem?

Notes and Rationale:

Now that we have identified Ocean Acidification as a serious problem, it is important to keep the tone of the discussion conversational and reasonable.

We can instill a sense of urgency when describing the real impacts of OA while avoiding a crisis tone. This allows for consideration of the problem and potential solutions instead of hopelessness.

Pteropods are being considered as a biological indicator for ecosystem conditions under the criteria of the Integrated Ecosystem Standard (or IEA). (See Global Ocean Health Ocean Acidification Report, Volume 2, Number 1, October 15, 2015.  www.globaloceanhealth.org )

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