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The Estuary and Gulf of St. Lawrence (EGSL) is one of the largest and most productive estuarine/marine systems in the world. This region supports unique ecosystems and productive fisheries that have been critical sources of food and culture for millennia, while also being a major historical transportation channel for Eastern North America. However, the EGSL is experiencing rapid changes to water conditions, including acidification, associated with climate change much faster t

We’re excited to share 7 illustrations from the British Columbia Ocean Acidification and Hypoxia Action Forum in March!

Learn more about how ocean acidification and hypoxia are impacting British Columbia, Canada in this short animated video!

Watch our short documentary on the Climate Ready BC Seafood Program! ​ Ocean acidification and hypoxia threaten British Columbia's coastal food security. In 2023, concurrently with the release of the BC Ocean Acidification and Hypoxia Action Plan , the Province of British Columbia provided a $2M funding envelope to create the Climate Ready BC Seafood (CRBS) Program . This short documentary highlights some of the 11 projects funded by the CRBS Program. Learn more about how the

We are excited to announce the publication of our new paper "Ocean acidification in Canada: the current state of knowledge and pathways for action" in Frontiers in Marine Science! The paper synthesizes the current state of OA knowledge in Canada and provides recommendations to enhance OA knowledge and integration into decision-making in Canada.

Today is OA Day of Action, held each year on January 8th to represent the current pH of the ocean (8.1). To celebrate the day, we're reflecting on Canada's participation in the OA events, actions, stories, and resources of 2025 from Canada and beyond!

Our October updates are here, featuring upcoming BC OAH Action Forum, our OA CoP presentation for OA Week, our community strategic planning "What We Heard" report, and more!

The OA CoP participated in the GOA-ON North American Hub session at OA Week 2025!

Read our new community led strategic planning report and recommendations for the OA community in Canada!

Our September updates are here, including updates for OA Week 2025 (including an OA CoP presentation), new Scientist Spotlight post, and...

Our August updates are here, including a new blog post on OA impacts to juvenile Pacific salmon research, dates for OA Week 2025, and more!

We interviewed Dr. Andrea Frommel, lead author of a new study that investigated how juvenile Pacific salmon are impacted by ocean acidification and changes in food availability and how these impacts can be identified in wild fish.

Our July updates are here, including dates for OA Week 2025, Dungeness crab impacts, several recent Canadian studies, and OSM 2026 abstract calls!

Our June e-news updates are here featuring our new OA in Canada Species Impacts series and more!

Check out our new OA in Canada Species Impacts Webpage!

Ocean Week Canada 2025 is here! To celebrate, the OA CoP is releasing a new series of resources on how Ocean Acidification impacts important species in Canada, starting tomorrow. Follow along all week to learn more!

Our May e-news updates are here

Explore and add yourself to our OA in Canada Expert Database!

We are excited to announce the launch of our new database of publications on ocean acidification research conducted in Canada! View,...

Our April e-news updates are here

Our March e-news updates are here