At a glance<\/h3>\n\n\n\n\n- What:<\/strong> Stanford researchers find that a healthy coral fragment can heal a bleached one<\/li>\n\n\n\n
- How:<\/strong> Direct contact, through which beneficial algae move across<\/li>\n\n\n\n
- Result:<\/strong> Fragments in contact recovered fully within seven weeks, fragments without contact died<\/li>\n\n\n\n
- The catch:<\/strong> No solution for whole reefs yet<\/li>\n\n\n\n
- As of:<\/strong> October 16, 2026 (source: FOCUS online \/ dpa)<\/li>\n<\/ul>\n\n\n\n\nBook diving in the Red Sea<\/a><\/div>\n<\/div>\n\n\n\n
What happens during coral bleaching<\/h3>\n\n\n\n
Stony corals live in partnership with tiny algae, and both sides benefit. Under stress, corals expel these algae and lose their color. Their white limestone skeleton then shows through the tissue.<\/p>\n\n\n\n
Experts name human-caused climate change as the main driver of mass bleaching events worldwide.<\/p>\n\n\n\n
A bleached coral is not automatically dead, though. If temperatures drop in time, it can take up new algae and recover.<\/p>\n\n\n\n![\"Close-up](\"https:\/\/www.lagona-divers.com\/wp-content\/uploads\/2026\/10\/korallenbleiche-gesund-gebleicht.png\")
Color on one side, white on the other: how healthy and bleached corals differ.<\/figcaption><\/figure>\n\n\n\nThe experiment: ten pairs, two distances<\/h3>\n\n\n\n
Palumbi’s team wanted to get to the bottom of the accident. They formed ten pairs, each made up of one healthy and one bleached fragment. In half of the pairs the pieces touched directly, in the other half a gap of just a few millimeters remained.<\/p>\n\n\n\n
The result was clear:<\/p>\n\n\n\n
\n- Bleached pieces in contact<\/strong> with a healthy one recovered fully within seven weeks.<\/li>\n\n\n\n
- Bleached pieces without contact<\/strong> died.<\/li>\n<\/ul>\n\n\n\n
Under the microscope, the researchers saw fine channels in the tissue connecting the fragments.<\/p>\n\n\n\n![\"Infographic:](\"https:\/\/www.lagona-divers.com\/wp-content\/uploads\/2026\/10\/korallen-kontakt-vs-abstand-infografik.png\")
Contact makes the difference: only touching coral pieces recovered.<\/figcaption><\/figure>\n\n\n\nWhy it works: clones recognize each other<\/h3>\n\n\n\n
Genetically identical corals recognize each other on contact, and their tissues fuse. Palumbi compares it to organ transplants between identical twins. Through this connection, the beneficial algae travel from the healthy coral to the ailing one.<\/p>\n\n\n\n
Research had not expected the algae to move that quickly and multiply in their new home. Palumbi told the \u201cNew York Times\u201d this was the big surprise.<\/p>\n\n\n\n
After about a week of contact, in some cases after only five days, the corals had apparently taken up enough algae to recover on their own.<\/p>\n\n\n\n
Know your corals, dive with new eyes<\/h3>\n\n\n\n
The reef is full of life. The more you know about the corals growing there, the more you see on every dive.<\/p>\n\n\n\n
That is exactly what the SSI Coral Identification Specialty Diver<\/strong> course is for. You learn to identify the most important coral species, find out why the oceans matter so much to all of us, and discover what you can do with a few simple steps to protect them. At the end, you receive your certification.<\/p>\n\n\n\n
What happens during coral bleaching<\/h3>\n\n\n\n
Stony corals live in partnership with tiny algae, and both sides benefit. Under stress, corals expel these algae and lose their color. Their white limestone skeleton then shows through the tissue.<\/p>\n\n\n\n
Experts name human-caused climate change as the main driver of mass bleaching events worldwide.<\/p>\n\n\n\n
A bleached coral is not automatically dead, though. If temperatures drop in time, it can take up new algae and recover.<\/p>\n\n\n\n Palumbi’s team wanted to get to the bottom of the accident. They formed ten pairs, each made up of one healthy and one bleached fragment. In half of the pairs the pieces touched directly, in the other half a gap of just a few millimeters remained.<\/p>\n\n\n\n The result was clear:<\/p>\n\n\n\n Under the microscope, the researchers saw fine channels in the tissue connecting the fragments.<\/p>\n\n\n\n Genetically identical corals recognize each other on contact, and their tissues fuse. Palumbi compares it to organ transplants between identical twins. Through this connection, the beneficial algae travel from the healthy coral to the ailing one.<\/p>\n\n\n\n Research had not expected the algae to move that quickly and multiply in their new home. Palumbi told the \u201cNew York Times\u201d this was the big surprise.<\/p>\n\n\n\n After about a week of contact, in some cases after only five days, the corals had apparently taken up enough algae to recover on their own.<\/p>\n\n\n\n The reef is full of life. The more you know about the corals growing there, the more you see on every dive.<\/p>\n\n\n\n That is exactly what the SSI Coral Identification Specialty Diver<\/strong> course is for. You learn to identify the most important coral species, find out why the oceans matter so much to all of us, and discover what you can do with a few simple steps to protect them. At the end, you receive your certification.<\/p>\n\n\n\nThe experiment: ten pairs, two distances<\/h3>\n\n\n\n
\n
Why it works: clones recognize each other<\/h3>\n\n\n\n
Know your corals, dive with new eyes<\/h3>\n\n\n\n
![\"Different](\"https:\/\/www.lagona-divers.com\/wp-content\/uploads\/2026\/10\/korallenarten-erkennen-dahab.png\")
![\"Scuba](\"https:\/\/www.lagona-divers.com\/wp-content\/uploads\/2026\/10\/taucher-ueber-riff-rotes-meer.png\")