Chapter 3: Ocean Acidification
45 Mins
4 Sections
20 MCQ
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Introduction:
Atmospheric concentration of carbon dioxide have been increasing rapidly in recent decades due to human activities. Not only will this cause global warming, among 25 to 30% of atmospheric carbon dioxide will dissolve in the ocean. The dissolved carbon dioxide will lead to increased acidity in the water which is known as ocean acidification.
Ocean acidification will have immense impacts on species composition and hence productivity of marine ecosystems. Species depending on calcium carbonate for building their skeletons will be under threat in more and more acidic waters. This is a less known topic in the public domain under the global climate change discussion.
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Course Objectives:
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i. To understand what is ocean acidification, and how it will affect the marine environment.
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iii. To understand the urgency and importance of taking preventive measures to maintain a healthy and diverse marine environment under ocean acidification.
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ii. To learn about the additive effects of ocean acidification, ocean warming, and hypoxia.
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iv. To equip you with a better understanding of what actions you can take to tackle ocean acidification.
Course Outline:
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Content may also relate with:
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Overfishing
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Coral Conservation
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Microplastic Pollution
Section 1: Introduction
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Carbon Sinks
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Ocean Acidification
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Global & Local
Section 2: Impacts
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“Winners”
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“Loser”
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Section 3: Additive effects
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Ocean Warming + Ocean Acidification
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Hypoxia + Ocean Acidification
Section 4: Actions
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Conservation & Management
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Live, Eat, Wear, Use, Care & Update
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Acknowledgment
We are grateful to Dr. VENGATESEN, Thiyagarajan (HKU), The Nature Conservancy (TNC), Ir. CK Lee (HKIE) , Kitty Chan, Ben Lo, and Deidra Wirakusumah for contributing to this online course module “Ocean Acidification”.
We are particularly grateful to Yukon Siu for graphic design; the Bloom Association, 114°E Hong Kong Reef Fish Survey, The Nature Conservancy (TNC), Corals Of The World and divers for providing photographs and diagrams.