Title

Pteropods at Risk: Effects of Ocean Acidification on Pelagic Mollusks

Abstract

Increasing levels of carbon emissions in the atmosphere have direct effects on ocean chemistry and marine habitats. Anthropogenic carbon emissions increase levels of dissolved CO2 in ocean waters, causing ocean acidification. Pteropods are pelagic mollusks with calcium carbonate shells that are vulnerable to corrosion in acidic waters. Our presentation examines the relationship between ocean pH and shell damage of the pteropod Limacina Helicina off the eastern coast of New Zealand. Sampling of water pH in this region varied from 7.98 to 8.10. However, global ocean pH is expected to decrease a further 0.3- 0.4 units by the end of the century, given current emission projections, and these changes may prove more challenging for animals with calcium-best shells. Our research contributes to the growing field of the effects of carbon emissions on marine ecosystems and economies.

Faculty Sponsor

Shaun Cain

Tracks

Secrets of the Deep I

Terms of Use

ARMINDA Terms of Use

Location

Science 100

Presentation Type

Oral Presentation

This document is currently not available here.

Share

COinS
 
Apr 11th, 10:45 AM Apr 11th, 11:00 AM

Pteropods at Risk: Effects of Ocean Acidification on Pelagic Mollusks

Science 100

Increasing levels of carbon emissions in the atmosphere have direct effects on ocean chemistry and marine habitats. Anthropogenic carbon emissions increase levels of dissolved CO2 in ocean waters, causing ocean acidification. Pteropods are pelagic mollusks with calcium carbonate shells that are vulnerable to corrosion in acidic waters. Our presentation examines the relationship between ocean pH and shell damage of the pteropod Limacina Helicina off the eastern coast of New Zealand. Sampling of water pH in this region varied from 7.98 to 8.10. However, global ocean pH is expected to decrease a further 0.3- 0.4 units by the end of the century, given current emission projections, and these changes may prove more challenging for animals with calcium-best shells. Our research contributes to the growing field of the effects of carbon emissions on marine ecosystems and economies.

Rights Statement

Rights Statement

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).