Can Corals Cope with Ocean Acidification?

Backed by Donald Marron and Cindy Wu
Scripps Institution of Oceanography
BiologyEcology
$5,000
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  • $70
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  • 2%
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About This Project

Ocean acidification makes it much more difficult for corals to build their skeletons, to the point that some scientists predict that coral reefs will start to dissolve in the near future. However, not all corals respond the same way to changing pH in the ocean. This study aims to understand the physiological mechanisms underlying coral responses, in order to better predict how reefs will fare in the future.

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What is the context of this research?

Ocean Acidification (OA) is caused by human-produced carbondioxide (CO2) getting absorbed by the oceans and increasing acidity. Without the oceans sucking up so much atmospheric CO2 (a quarter!) each year, global warming would be much worse. However, all of this extra CO2 in the oceans comes at a potential cost to marine life. Corals have been dubbed one of the most sensitive marine organisms to OA because one of the two key ingredients for making their skeletons, carbonate ions, starts to disappear as ocean pH drops. As OA intensifies, the beautiful and complex coral reef structures that blanket the tropics may become mere rubble fields in the future. However, it is possible that some corals will be able to cope with OA. Studies indicate that corals can adjust their physiology to changing conditions. But how do they do it? I am addressing this question by looking at coral metabolism, the set of chemical reactions in an organism that creates energy for processes like calcification, growth, and reproduction. Knowing how much energy corals are able to make under different conditions (such as during day and night and under different levels of ocean acidification) can tell us how those energy uses might change under future conditions. For the past year, I have been developing techniques for studying the metabolic rates in corals. But to continue this project, I need your help funding the next crucial steps.

What is the significance of this project?

This research is important because it addresses the issue of how corals respond to ocean acidification from a novel perspective. To date, coral studies have primarily used a limited set of techniques (e.g. measuring growth and weight, monitoring gene expression). However, many essential biological responses cannot be studied with those techniques. I propose to characterize coral metabolism, which is the central physiological process that creates energy to sustain life. My studies of how coral metabolism change under ocean acidification will help scientists construct mechanistic models to predict what will happen in the future. This information is crucial to informing management and policy decisions to help protect reefs.

What are the goals of the project?

The funds generated by your generous donations will be used to run laboratory experiments on corals to better understand how they respond to ocean acidification.


Budget

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I am currently characterizing the baseline metabolism of a commonly studied coral species (Acropora yongei), and the next step is to see how metabolism changes under ocean acidification.

In order to first characterize the types of metabolism that corals use to make energy, I am using a technique called high-pressure liquid chromatography (HPLC), which will cost $1000.

After understanding the basics of how coral metabolism works under normal conditions, I will acclimate coral branches to high-CO2 (ocean acidification) and control conditions and measure the effect on metabolism. I already have the CO2-bubbling tanks set up, so all I need is to cover the cost of running the experiments to measure metabolic rates ($4000).

Meet the Team

Lauren Linsmayer
Lauren Linsmayer

Team Bio

It may seem ironic that as a native Minnesotan, I have saved a manatee, researched water quality parameters to inform policy in the Gulf of Mexico, and swum in pods of wild dolphins around the world. Yet all of these experiences and more served to reconfirm my passion for and commitment to studying the oceans.

In order to ultimately deepen my service to the oceans, I am pursuing a PhD in Marine Biology from the Scripps Institution of Oceanography, where I study how corals respond to environmental changes. In addition to my passion for research, I am committed to communicating science to the public and policy-makers. I have the great privilege of presenting on ocean acidification at a UNESCO event at the UN Framework Convention on Climate Change conference in Warsaw this November.

After receiving my PhD, I hope to pursue a career in science communication, potentially working in broadcast TV, at a marine conservation NGO, or internationally as a spokesperson for marine conservation.

Lab Notes

Nothing posted yet.

Additional Information

Check out my lab’s Facebook page, and please “like” us to follow updates of our research!

You can read more about my experience talking to the UN Framework Convention on Climate Change about ocean acidification in Warsaw, Poland here.



Project Backers

  • 2Backers
  • 2%Funded
  • $70Total Donations
  • $35.00Average Donation
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