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Alaska Ocean Acidification and HABs: Networking and coastal variability

Dr. Kris Holderied, NOAA Kasitsna Bay Laboratory, Coastal discusses how marine species, fisheries, subsistence harvests and mariculture operations in Alaska have long been adversely affected by harmful algal blooms (HABs), especially paralytic shellfish poisoning events, with events increasing during recent marine heat waves. Alaska shellfish and fish species, and the marine industries that depend on

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Effects of Ocean Acidification on HABs: A review of what we do and don’t know

Melissa McCutcheon of Texas A&M University Corpus Christi, discusses the current understanding of the response of several common HAB species to elevated COconcentrations. While certain environmental conditions—such as nutrient pollution and warming waters—have been closely tied to the proliferation of some HAB species, there is still a lot of uncertainty regarding the impact of OA on HABs.

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Acidification and Harmful Algal Blooms in the Great Lakes

Dr. Reagan Errera, of NOAA's Great Lakes Environmental Research Laboratory presents a general overview of the current state of knowledge and provide an update on current acidification research activities at NOAA’s Great Lakes Environmental Research Laboratory. Currently, little research has been conducted on inorganic carbon availability, acidification, and their role in phytoplankton dynamics within the Great Lakes

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Modeling and Forecasting OA and HABs to meet stakeholders needs – Regional Perspectives

Drs. Samantha Siedlecki, Clarissa Anderson, Jan Newton and Barb Kirkpatrick discuss  how corrosive, hypoxic, and harmful algal bloom (HAB) events in coastal waters are of increasing concern to local fisheries and managers. Many important species around the country in coastal waters are currently experiencing or are expected to feel effects of ocean acidification and harmful algal

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The NOAA Ocean Acidification Program (OAP) works to prepare society to adapt to the consequences of ocean acidification and conserve marine ecosystems as acidification occurs. Learn more about the human connections and adaptation strategies from these efforts.

Adaptation approaches fostered by the OAP include:


Using models and research to understand the sensitivity of organisms and ecosystems to ocean acidification to make predictions about the future, allowing communities and industries to prepare


Using these models and predictions as tools to facilitate management strategies that will protect marine resources and communities from future changes


Developing innovative tools to help monitor ocean acidification and mitigate changing ocean chemistry locally


On the Road

Drive fuel-efficient vehicles or choose public transportation. Choose your bike or walk! Don't sit idle for more than 30 seconds. Keep your tires properly inflated.

With your Food Choices

Eat local- this helps cut down on production and transport! Reduce your meat and dairy. Compost to avoid food waste ending up in the landfill

With your Food Choices

Make energy-efficient choices for your appliances and lighting. Heat and cool efficiently! Change your air filters and program your thermostat, seal and insulate your home, and support clean energy sources

By Reducing Coastal Acidification

Reduce your use of fertilizers, Improve sewage treatment and run off, and Protect and restore coastal habitats

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You've taken the first step to learn more about ocean acidification - why not spread this knowledge to your community?

Every community has their unique culture, economy and ecology and what’s at stake from ocean acidification may be different depending on where you live.  As a community member, you can take a larger role in educating the public about ocean acidification. Creating awareness is the first step to taking action.  As communities gain traction, neighboring regions that share marine resources can build larger coalitions to address ocean acidification.  Here are some ideas to get started:

  1. Work with informal educators, such as aquarium outreach programs and local non-profits, to teach the public about ocean acidification. Visit our Education & Outreach page to find the newest tools!
  2. Participate in habitat restoration efforts to restore habitats that help mitigate the effects of coastal acidification
  3. Facilitate conversations with local businesses that might be affected by ocean acidification, building a plan for the future.
  4. Partner with local community efforts to mitigate the driver behind ocean acidification  – excess CO2 – such as community supported agriculture, bike & car shares and other public transportation options.
  5. Contact your regional Coastal Acidification Network (CAN) to learn how OA is affecting your region and more ideas about how you can get involved in your community
       More for Taking Community Action