{"id":5748,"date":"2024-05-29T06:45:44","date_gmt":"2024-05-29T13:45:44","guid":{"rendered":"https:\/\/coral.org\/?p=5748"},"modified":"2024-05-30T11:55:05","modified_gmt":"2024-05-30T18:55:05","slug":"coral-restoration-likely-wont-be-enough-to-save-coral-reefs-thats-why-we-focus-on-reducing-marine-threats","status":"publish","type":"post","link":"https:\/\/coral.org\/en\/blog\/coral-restoration-likely-wont-be-enough-to-save-coral-reefs-thats-why-we-focus-on-reducing-marine-threats\/","title":{"rendered":"Coral Restoration Alone Likely Won\u2019t Be Enough to Save Coral Reefs. That\u2019s Why We Focus on Reducing Marine Threats"},"content":{"rendered":"\n

Why don\u2019t we focus on coral restoration? It\u2019s a question we, at CORAL, have been asked time and time again. <\/p>\n\n\n\n

We address overfishing, minimize water pollution, support local communities, and lead cutting-edge research on coral adaptation to climate change\u2026but we don\u2019t generally work on coral restoration projects. Our decision comes down to the fact that coral restoration alone is unlikely to save reefs from our planet\u2019s warming temperatures if we don’t reduce local stressors.<\/p>\n\n\n\n

Why Coral Restoration Likely Won\u2019t Be Enough to Save Coral Reefs<\/h3>\n\n\n\n

According to a study<\/a> published in Ecological Applications<\/em> and co-authored by CORAL scientists, popular coral restoration techniques would be unlikely to protect coral reefs from climate change. The research used innovative models to explore the response of coral reefs to restoration projects that propagate corals and outplant them into the wild. Additionally, the study evaluated the effects of outplanting corals that have been genetically adapted to warmer temperatures, sometimes called \u2018super corals,\u2019 to reefs experiencing climate change as a way to build resilience to warming.<\/p>\n\n\n\n

The models found that neither approach was successful at preventing a decline in coral coverage in the next several hundred years due to climate change, and that selectively breeding corals to be more heat tolerant will only lead to benefits if conducted at a very large scale over the course of centuries. Even then, the benefits won\u2019t be realized for 200 years. In the models, restoring areas with corals that haven\u2019t been selected to be more heat tolerant was ineffective at helping corals survive climate change except at the largest supplementation levels explored.<\/p>\n\n\n\n

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Photo by Antonio Busiello<\/figcaption><\/figure>\n\n\n\n

Though coral restoration can have some benefits, like educating communities about reef ecosystems or replenishing an area that has been hit by a storm or suffered direct physical damage, more scientists are speaking up about the limitations of conservation approaches that focus solely on restoration. <\/p>\n\n\n\n

\u201cOur previous research shows that corals have the best chance of adapting to the effects of climate change, like warming ocean temperatures, if there is high genetic diversity and if habitat is protected from other local stressors.\u201d says Dr. Lisa McManus, the study\u2019s co-author and a CORAL partner. \u201cRepopulating a coral reef with corals that have similar genetic makeups could reduce an area’s natural genetic diversity, and therefore make it harder for all corals to adapt to climate change.\u201d <\/p>\n\n\n\n

Restoration alone is unlikely to save coral reefs from warming waters\u2014and moreover, the techniques are expensive and would need to be performed at an unrealistically large scale in order to be effective. Additionally, coral restoration projects can only be successful if local threats to reefs are managed effectively: otherwise, you\u2019re utilizing resources to outplant corals into an area where they will soon be threatened by poor water quality or overfishing.<\/p>\n\n\n\n

Reducing Marine Threats and Advocating for Climate Action<\/h3>\n\n\n\n

CORAL scientists agree that corals have the best chance of surviving climate change with effective reef management strategies that focus on protecting natural genetic diversity.<\/strong> By doing that, we can create the conditions that corals need to be able to adapt to climate change on their own, so long as emissions are also reduced. That\u2019s why we invest in projects that will keep coral reefs healthy and protect a wide-range of diverse coral reef networks.  <\/p>\n\n\n\n

For example, in Hawai’i and  in the Western Caribbean region, we address overfishing<\/a>, protect marine habitats, invest in wastewater treatment infrastructure, mobilize communities to save their coral reefs\u2014and more. And on a global scale, we advance innovative technologies, like the Allen Coral Atlas<\/a>, to help stakeholders better understand how to factor natural evolutionary processes into their conservation efforts. <\/p>\n\n\n\n

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Photo by Teresa Wood<\/figcaption><\/figure>\n\n\n\n
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By reducing major threats, like overfishing and water pollution, we are keeping coral reefs healthy at the local level. We are also advocating for climate action and building worldwide partnerships and spreading awareness of how to create the necessary conditions for corals to adapt to climate change.<\/p>\nDr. Helen Fox, Conservation Science Director<\/cite><\/blockquote>\n\n\n\n

We know we have a long road ahead. But by focusing on the most effective conservation strategies, we have a fighting chance to save coral reefs\u2014some of the ocean\u2019s most valuable marine ecosystems. That\u2019s why we focus on projects that will keep our existing reefs healthy and able to adapt to climate change. <\/strong><\/p>\n\n\n\n\"Help<\/a><\/span>