{"id":632918,"date":"2026-10-17T00:00:11","date_gmt":"2026-10-17T00:00:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/632918\/"},"modified":"2026-10-17T00:00:11","modified_gmt":"2026-10-17T00:00:11","slug":"stanford-just-figured-out-how-to-lead-dying-coral-reefs-to-a-fast-and-full-recovery","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/632918\/","title":{"rendered":"Stanford Just Figured Out How to Lead Dying Coral Reefs to a \u2018Fast and Full Recovery\u2019"},"content":{"rendered":"

Let\u2019s set aside the fact that coral reefs are essential wellsprings of marine biodiversity<\/a>, colorful aquatic oases that nourish innumerable animals across the entire ocean food chain. These reefs are critical for humans too. By one assessment<\/a>, the worldwide societal benefits from coral ecosystems\u2014including protected coastal infrastructure, habitats fostering commercial fishing, tourism, and even drug discovery\u2014provide an estimated $9.8 trillion<\/a> per year in value.<\/p>\n

So, it matters that roughly 84.4%<\/a> of the world\u2019s coral reefs suffered bleaching-levels of heat stress during the last major marine heat wave from January 2023 to September 2025, with over half<\/a> already lost compared to coral coverage in the 1950s. Fundamentally, corals bleach when rising temperatures kill off its algal symbionts, a form of single-celled phytoplankton known as dinoflagellates.<\/p>\n

Left to themselves, these coral reefs can (if they\u2019re lucky) slowly repopulate their essential partners from dinoflagellates drifting in the marine environment\u2014but all too often that incremental organic rejuvenation happens too slowly to save a reef from certain death.<\/p>\n

\u201cBleached corals are often considered a lost cause because recovery after a heatwave is very slow, if it happens at all,\u201d explains<\/a>\u00a0Fiorenza Micheli, a marine ecologist with Stanford University\u2019s Center for Ocean Solutions.<\/p>\n

But there\u2019s some good news, thanks to a new study published<\/a> this Wednesday in the journal Science Advances: Marine ecologists at Stanford have discovered that bleached corals can be revived via contact with a healthy coral neighbor, who (like a good neighbor) shares their photosynthetic, symbiotic algae (Symbiodiniaceae<\/a>) with their peers.<\/p>\n

\u201cThis incredible new result\u2014that fast and full recovery is possible in bleached coral\u2014can inspire solutions that eventually may be scalable,\u201d Micheli, who co-authored the study, told<\/a> the journal Nature.<\/p>\n

Dino might \"CollinsMarine scientists at Stanford assembled 10 pairs of coral fragments, one bleached and one healthy sample apiece, testing how simple contact helped revive genetically identical specimens. Credit: Danny Collins <\/p>\n

Stephen Palumbi, a research scientist with Stanford\u2019s Hopkins Marine Station in Pacific Grove, California, was the first to stumble upon neighboring coral\u2019s regenerative properties last year, when he spotted the phenomena occurring by happenstance between two specimens in the lab. Soon Palumbi was collaborating with Danny Collins, a PhD student working with Micheli at Stanford, whose prior work had investigated how microbial diseases spread from coral to coral.<\/p>\n

\u201cHarmful bacteria enter corals through physical contact,\u201d Collins noted. \u201cWe were curious about what would happen if we used contact to reintroduce something good.\u201d<\/p>\n

Collins assembled 10 coral test pairs from the same species, Pocillopora damicornis, each composed of one bleached and one healthy coral fragment. Half these test pairs touched, while the other five were separated by only a few millimeters. That distance proved enormous. Unlike their controls, bleached coral in contact with healthy coral recovered in just eight weeks.<\/p>\n

The speed of this effect took Palumbi by surprise.<\/p>\n

\u201cOnce beneficial algae enter bleached corals, they don\u2019t just spread out,\u201d Palumbi said. \u201cThey flood in and start dividing at the fastest rates seen in corals.\u201d<\/p>\n

Reef relief \"CollinsThe team traced the flow of both symbiotic algae and nutrients from the healthy coral to their bleached partners via new microscopic imaging equipment<\/a> at Hopkins Marine Station. Credit: Danny Collins \/ Jana Sipkova <\/p>\n

At the moment, there\u2019s just one snag to the deployment of healthy coral to revive their comrades across the world\u2019s oceans. This phenomenon of healing contact only appears to work between genetically identical coral specimens.<\/p>\n

\u201cGenetically identical corals recognize one another when they come into contact,\u201d according to Palumbi, a professor of oceans at Stanford\u2019s Doerr School of Sustainability. \u201cTheir tissues fuse if they are from the same clone. We see something similar in humans. Organ transplants are often successful if the donor is your identical twin.\u201d<\/p>\n

Nevertheless, the surprise discovery of this method alongside the other techniques that marine conservationists are now actively pursuing\u2014including the successful deep-freezing and revival of at-risk coral sampled from Hawaii<\/a>\u2014could offer threatened reefs the lifeline they need. Coral contact could super-charge other efforts, like the selective breeding<\/a> of heat-tolerant corals and the cultivation<\/a> of protected coral nurseries.<\/p>\n

\u201cThey open the door to what\u2019s possible,\u201d Micheli said, \u201cand may lead to the breakthrough we need to accelerate reef restoration.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"Let\u2019s set aside the fact that coral reefs are essential wellsprings of marine biodiversity, colorful aquatic oases that…\n","protected":false},"author":2,"featured_media":632919,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[7770,13694,273,14859,2867,111,139,69,147],"class_list":["post-632918","post","type-post","status-publish","format-standard","has-post-thumbnail","category-environment","tag-coral-bleaching","tag-coral-reefs","tag-environment","tag-marine-animals","tag-microbiology","tag-new-zealand","tag-newzealand","tag-nz","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/632918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=632918"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/632918\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/632919"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=632918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=632918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=632918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}