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Keep up with Reef Check.

Get the latest news and information about how we’re contributing to the global effort to save and preserve our coral reefs.

Follow us around the world on our mission of education through exploration.

How and why are urchin size frequency surveys performed?

October 28, 2010

Each month, Reef Check will answer a technical question regarding the monitoring protocol of our coral reef or rocky reef programs.

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Video Documents Koh Tao, Thailand Bleaching

October 28, 2010

This year has been a challenging year for the reefs of Koh Tao, Thailand. Marine ecosystems have been under a great deal of stress as a result of the 2009-2010…

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Reef Check California Featured in Independent Coast Observer

October 20, 2010

Reporter Tim McKusick of the Independent Coast Observer visited Reef Check California divers during our recent Sonoma surveys and camp-out extravaganza weekend.

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afrol News: Coral deaths reach Mayotte, Comoros

October 20, 2010

http://www.afrol.com/articles/36792

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Biosphere Expeditions Update from Oman

October 19, 2010

Here's the latest update from the first of two expeditions in Oman this year

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ABC Online: Coral bleaching event ‘worst since 1998’

October 19, 2010

http://www.abc.net.au/news/stories/2010/10/19/3042756.htm?section=justin

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@reefcheckfoundation

We’re on the ’gram! Follow us today for an even deeper dive with a social connection.

reefcheckfoundation

View Instagram post by reefcheckfoundation

Nov 24

Open post by reefcheckfoundation with ID 18119551510537585

We need Reef Check divers in the Channel Islands!⁠
⁠
Jump on a boat with us in December to collect data before the season ends. Sign up at your volunteer portal now.⁠
⁠
Not certified? Check out the training prerequisites and join us next year!⁠
⁠
📸: @kogia_org @karimiliya⁠
⁠
#kelp #scubadiver #scubadiving #kelpforest #oceanconservation #reefrestoration #respectthesea #scubaaddict #savemarinelife #saveocean #HelpTheKelp #KelpForestChallenge #KelpForestAlliance

We need Reef Check divers in the Channel Islands!⁠
⁠
Jump on a boat with us in December to collect data before the season ends. Sign up at your volunteer portal now.⁠
⁠
Not certified? Check out the training prerequisites and join us next year!⁠
⁠
📸: @kogia_org @karimiliya⁠
⁠
#kelp #scubadiver #scubadiving #kelpforest #oceanconservation #reefrestoration #respectthesea #scubaaddict #savemarinelife #saveocean #HelpTheKelp #KelpForestChallenge #KelpForestAlliance ...

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reefcheckfoundation

View Instagram post by reefcheckfoundation

Nov 21

Open post by reefcheckfoundation with ID 18079719545165562

To our people in Monterey, CA: Don't miss this special community screening of Sequoias of the Sea!⁠
⁠
📆 Saturday, November 22, 2025 2:00 – 4:00 PM⁠
📍 Merrill Hall, Asilomar State Beach & Conference Grounds⁠
🎟️ Free admission, but don't forget to RSVP at our 🔗⁠
⁠
Sequoias of the Sea is a visually stunning and deeply human documentary about the collapse of Northern California’s kelp forests. Through the voices of scientists, divers, Tribal leaders, and fishermen, the film tells a story of loss, resilience, and hope along our coast.⁠
⁠
After the film, stay for a community conversation about kelp restoration and ocean recovery efforts happening in Monterey and along the whole coast of California.⁠
⁠
📸: @sageonophotography⁠
⁠
#kelp #scubadiver #scubadiving #kelpforest #oceanconservation #reefrestoration #respectthesea #scubaaddict #savemarinelife #saveocean #HelpTheKelp #KelpForestChallenge #KelpForestAlliance

To our people in Monterey, CA: Don`t miss this special community screening of Sequoias of the Sea!⁠
⁠
📆 Saturday, November 22, 2025 2:00 – 4:00 PM⁠
📍 Merrill Hall, Asilomar State Beach & Conference Grounds⁠
🎟️ Free admission, but don`t forget to RSVP at our 🔗⁠
⁠
Sequoias of the Sea is a visually stunning and deeply human documentary about the collapse of Northern California’s kelp forests. Through the voices of scientists, divers, Tribal leaders, and fishermen, the film tells a story of loss, resilience, and hope along our coast.⁠
⁠
After the film, stay for a community conversation about kelp restoration and ocean recovery efforts happening in Monterey and along the whole coast of California.⁠
⁠
📸: @sageonophotography⁠
⁠
#kelp #scubadiver #scubadiving #kelpforest #oceanconservation #reefrestoration #respectthesea #scubaaddict #savemarinelife #saveocean #HelpTheKelp #KelpForestChallenge #KelpForestAlliance ...

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reefcheckfoundation

View Instagram post by reefcheckfoundation

Nov 19

Open post by reefcheckfoundation with ID 18097469269753682

This month, the theme is ‘Life is Better in Color,’ and the color in corals actually comes from their little microscopic algae buddies, called zooxanthellae.⁠
⁠
These algae convert sunlight into energy through photosynthesis, which in turn feeds the coral and makes the coral reef a vibrant spectacle. In return, the coral provides a safe home and the nutrients the algae need to survive.⁠
⁠
Why is color important? Because when ocean temperatures rise, this partnership breaks down. The algae leave, and the coral turns white in a process called coral bleaching. It’s a signal of stress, but not always the end. With cooler waters and healthy conditions, corals can recover. ⁠
⁠
However, we have recently reached a pivotal climate tipping point, and many coral reefs around the world have experienced such high temperatures that they have not been able to recover. We are in danger of losing these ecosystems as we know them if we don’t act fast. ⁠
⁠
This month, we ask you to:⁠
🔹 Boycott all unnecessary purchases⁠ (Let’s go beyond November!)⁠
🔹 Share with #LifeIsBetterInColor #HopeForCoral #ForCoral⁠
🔹 Visit the coral bleaching link in our bio for tools and steps you can take⁠
⁠
@coral_org ⁠
⁠
📸: @kogia_org @marlatomorug⁠
⁠
#ReefCheck #OceanConservation #MarineScience #ClimateAction #coralreef #coralbleaching #climatechange #savetheplanet #coral #reefcheck #oceanconservation #nonprofit #citizenscience #communityscience #scubadiving #marinebiology⁠

This month, the theme is ‘Life is Better in Color,’ and the color in corals actually comes from their little microscopic algae buddies, called zooxanthellae.⁠
⁠
These algae convert sunlight into energy through photosynthesis, which in turn feeds the coral and makes the coral reef a vibrant spectacle. In return, the coral provides a safe home and the nutrients the algae need to survive.⁠
⁠
Why is color important? Because when ocean temperatures rise, this partnership breaks down. The algae leave, and the coral turns white in a process called coral bleaching. It’s a signal of stress, but not always the end. With cooler waters and healthy conditions, corals can recover. ⁠
⁠
However, we have recently reached a pivotal climate tipping point, and many coral reefs around the world have experienced such high temperatures that they have not been able to recover. We are in danger of losing these ecosystems as we know them if we don’t act fast. ⁠
⁠
This month, we ask you to:⁠
🔹 Boycott all unnecessary purchases⁠ (Let’s go beyond November!)⁠
🔹 Share with #LifeIsBetterInColor #HopeForCoral #ForCoral⁠
🔹 Visit the coral bleaching link in our bio for tools and steps you can take⁠
⁠
@coral_org ⁠
⁠
📸: @kogia_org @marlatomorug⁠
⁠
#ReefCheck #OceanConservation #MarineScience #ClimateAction #coralreef #coralbleaching #climatechange #savetheplanet #coral #reefcheck #oceanconservation #nonprofit #citizenscience #communityscience #scubadiving #marinebiology⁠ ...

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@kelpreefcheck

View Instagram post by kelpreefcheck

Jun 18

Open post by kelpreefcheck with ID 18078635572868927

Congrats to the newest group of Reef Check Kelp Forest Monitoring divers! This group completed the NorCal training in Fort Bragg last weekend. Great job everyone, looking forward to diving with you all this season!

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View Instagram post by kelpreefcheck

Apr 18

Open post by kelpreefcheck with ID 18011695769516861

Congratulations to our Northern California Tribal Cohort #1 participants for completing their @nauiworldwide Advanced Scuba Diver course! We had gorgeous conditions at Van Damme State Beach
@reefcheckfoundation

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View Instagram post by kelpreefcheck

Nov 13

Open post by kelpreefcheck with ID 18011701294997847

Check that vis!
Doesn’t get better than this on the Mendocino Coast 30+ft

#reefcheckcalifornia #bullkelp #mpamonitoring #reefcheckfoundation

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