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126 news posts in Frontiers in Marine Science

Featured news

15 Apr 2024

Air pollution could increase the risk of neurological disorders: Here are five Frontiers articles you won’t want to miss this Earth Day

At Frontiers, we bring some of the world’s best research to a global audience. But with tens of thousands of articles published each year, it’s impossible to cover all of them. Now, with Earth Day approaching on 22nd April, we take a look at just five recent papers that shine a light on why we must do everything to help protect our planet.

Featured news

14 Feb 2024

Tiny crustaceans discovered preying on live jellyfish during harsh Arctic night

Scientists used DNA metabarcoding to show for the first time that jellyfish are an important food for amphipods during the Arctic polar night in waters off Svalbard, at a time of year when other food resources are scarce. Amphipods were not only observed to feast on ‘jelly-falls’ of dead jellyfish, but also to prey on live jellyfish. These results corroborate an ongoing ‘paradigm shift’ which recognizes that jellyfish aren’t a trophic dead-end but an important food for many marine organisms.

Featured news

13 Nov 2023

Endangered turtle population under threat as pollution may lead to excess of females being born

By Mischa Dijkstra, Frontiers science writer Researchers from Australia studied the influence of pollution on the sex ratio of clutches of sea green turtles. This species is at risk of extinction from a current lack of male hatchlings. They concluded that exposure to the heavy metals cadmium and antimony, accumulated by the mother and transferred to her eggs, may cause embryos to be feminized. Pollution may thus compound the female-biasing influence of rising global temperatures on green sea turtles. Green sea turtles, Chelonia mydas, are listed as endangered on the IUCN Red List of Threatened Species. They are at risk of extinction due to poaching, collisions with boats, habitat destruction, and accidental capture in fishing gear. But another threat, linked to climate change, is more insidious: sea turtles have temperature-dependent sex determination, which means that more and more embryos develop into females as temperatures keep rising. Already, in the northern part of the Great Barrier Reef off Australia, hundreds of females are born for every male. Now, researchers have shown that the resulting risk of extinction due to a lack of male green sea turtles may be compounded by pollution. Dr Arthur Barraza, a researcher at the Australian Rivers Institute […]

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20 Sep 2023

Shading the Great Barrier Reef from the sun might slow bleaching-induced coral decline

By Deborah Pirchner, Frontiers science writer Image: Shutterstock As ocean temperatures rise, corals can lose their color due to heat stress. Bleaching does not kill corals immediately, but they become more vulnerable to disease and starvation. Shading reefs by covering them with cloth or fog, can protect them from excessive heat. Now, researchers have tested the shading response of two coral species and found that four hours of shade during the hottest time of the day can significantly slow bleaching. This knowledge can help with solar radiation management in marine ecosystems, including the Great Barrier Reef. Over the past two decades, coral reefs have declined at unprecedented rates. This is in part because of extreme weather events, which cause wide-spread coral bleaching, a process during which corals lose their color because of stressors, including changes in water temperature, light, or nutrient availability. One of the worst mass bleaching events occurred in 2016 and 2017 on the Great Barrier Reef, causing bleaching on 91% of the system’s reefs. As frequency and severity of mass bleaching events are expected to increase in the future, researchers are looking for ways to protect corals from excessive radiation and temperatures. As part of the Cooling […]