Ocean Acidification, Hypoxia, and Harmful Algal Bloom Solicitation Now Open – Letters of Intent due March 6, 2026
OPC is pleased to announce the release of a California Climate Investments solicitation: Monitoring, Research, and Modeling to Support Ocean Acidification, Hypoxia, and Marine Harmful Algal Bloom Management in California. Projects should enhance scientific understanding of ocean acidification and hypoxia (OAH) and/or marine harmful algal blooms (HABs) to advance the State’s response related to these two growing threats to California’s coastal ecosystems and communities.
The solicitation will support projects that will strengthen California’s capacity to track, assess, and address the impacts of OAH on marine biota and ecosystems (Track 1); as well as support state management actions to prevent, mitigate, and control the impacts of HABs (Track 2). More detailed research priorities can be found in the solicitation.
Update: As of February 9, 2026, an updated solicitation has been released. The updated solicitation clarifies that research proposals to improve understanding of cyanobacterial harmful algal bloom toxin risk to seafood safety in the marine environment will be considered (see example priorities list in Section II.B).
OPC staff hosted a public webinar about the solicitation on Tuesday, February 10, 2026. Learn about solicitation priorities, timeline, and application process.
OPC staff also hosted an office hour on February 12, 2026.
An updated factsheet is available.
Submit a Letter of Intent
Letters of intent (LOI) are due Friday, March 6, 2026 by5:00 p.m. LOI applicants invited to submit a full proposal will be notified by April 13. Full proposals are due Friday, June 12, 2026 by5:00 p.m. (only applicants who have submitted an LOI may submit a full proposal). See the solicitation for the full timeline.
Contact
For more information, please contact Kyla Kelly, OPC Water Quality Program Manager (kyla.kelly@resources.ca.gov) with the subject line “OPC OAH/HABs solicitation”.



