GoKawiil
Tech News
Researchers report finding a technique that enables severely damaged coral reefs to recover quickly and more completely than previously observed. The approach reportedly targets key recovery factors that had been limiting reef regeneration after bleaching events.
Stanford researchers found that bleached coral placed in contact with healthy coral colonies recovered within about eight weeks. The study suggests physical proximity to healthy tissue can accelerate recovery compared to bleached coral left isolated.
A HEPCA survey led by marine biologist Mahmoud Hanafy found coral bleaching across Egypt's Red Sea following summer heat waves in 2023 and 2024. Less than 10 percent of surveyed colonies were affected in northern reef areas, but bleaching struck roughly half the corals further south.
The preprint server arXiv has introduced a cap of two submissions per month per researcher, aiming to curb a surge of low-quality, often AI-generated papers overwhelming its volunteer moderators. Astrophysicist Steinn Sigurðsson, arXiv's scientific director, said the cap is the latest step to manage this burden. Reaction is mixed, with some researchers backing the move while others argue it won't address the underlying cause of AI-generated submissions.
A reassessment of 892 reef-building coral species against IUCN Red List criteria found that of the 774 with sufficient data, 340 species (44%) now qualify as threatened, including 33 Critically Endangered, 251 Endangered and 56 Vulnerable. The analysis, an update of a 2008 assessment, used proxies such as global coral cover trends and projected severe bleaching frequency under a moderate-emissions climate scenario, since population data for most coral species are lacking.
Researchers at Hopkins Marine Station observed that a bleached coral fragment regained its pigmentation after being placed touching a healthy fragment from the same coral colony. In a controlled experiment with ten fragment pairs of Pocillopora damicornis, five pairs were set to touch each other while five were kept apart, and the touching pairs showed transfer of symbiotic algae and rapid recovery of colour within days to weeks. The findings were published in Science Advances on 14 October.
Researchers deployed umbrella-like shading devices over coral reefs in the Florida Keys to test whether reducing sunlight exposure can help corals survive periods of extreme ocean heat. The experiment is aimed at limiting coral bleaching, a stress response triggered when warming waters cause corals to expel the algae they depend on for nutrients and color.
Scientists are racing to protect coral reefs ahead of a forecast global mass bleaching event driven by record ocean temperatures and a strengthening El Niño. Restoration teams are testing methods including breeding corals bred for greater heat and acid tolerance, applying microbial and nutrient treatments, and using underwater speakers to attract coral larvae to degraded reefs.
Climate scientists tracking 14 forecasting models report that central Pacific sea surface temperatures are running about 2.9°C above the 30-year average, more than 1°C hotter than at the same point in the record 1997 and 2015 El Niño events. Models now give a greater than 90% probability that this year's El Niño will exceed every event recorded since the 1870s, raising fears of severe drought, flooding, wildfires and coral bleaching worldwide.
Researchers publishing in Science found that corals rely on microscopic hairlike cilia to stir water and pull in oxygen when their photosynthetic algae go dormant at night. As ocean water warms, it holds less oxygen, forcing cilia to beat faster to compensate, but past a critical temperature this frantic motion consumes more oxygen than it delivers, effectively suffocating the coral polyps.
Brazilian philanthropic organizations, led by the Serrapilheira Institute, have begun funding scientific research at a scale unprecedented in the country's history, distributing over $25 million to early-career researchers since its founding. The University of São Paulo has also launched a center dedicated to studying and promoting science philanthropy, reflecting a broader shift as private donors step into a space traditionally dominated by government funding.