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One of the largest ecosystems on Earth lives beneath the seafloor and eats radiation byproducts

One of the largest ecosystems on Earth lives beneath the seafloor and eats radiation byproducts That s pretty metal! Researchers at the University of Rhode Island’s (URI) Graduate School of Oceanography report that a whole ecosystem of microbes below the sea dines not on sunlight, but on chemicals produced by the natural irradiation of water molecules. Image credits Ely Penner. Whole bacterial communities living beneath the sea floor rely on a very curious food source: hydrogen released by irradiated water. This process takes place due to water molecules being exposed to natural radiation, and feeds microbes living just a few meters below the bottom of the open ocean. Far from being a niche feeding strategy, however, the team notes that this radiation-fueled feeding supports one of our planet’s largest ecosystems by volume.

Rhode islandUnited statesUniversity of rhode islandArthur spivackEly pennerJustine sauvageSteven dhondtNature communicationsUniversity of gothenburgOcean drilling programSchool of oceanographyRhode island nuclear science centerGraduate schoolStevend hondtRhode island nuclear scienceAtlantic oceans

URI researchers: Microbes deep beneath seafloor survive on byproducts of radioactive process

E-Mail Credit: Photo courtesy Justine Sauvage NARRAGANSETT, R.I. - February 26, 2021 - A team of researchers from the University of Rhode Island s Graduate School of Oceanography and their collaborators have revealed that the abundant microbes living in ancient sediment below the seafloor are sustained primarily by chemicals created by the natural irradiation of water molecules. The team discovered that the creation of these chemicals is amplified significantly by minerals in marine sediment. In contrast to the conventional view that life in sediment is fueled by products of photosynthesis, an ecosystem fueled by irradiation of water begins just meters below the seafloor in much of the open ocean. This radiation-fueled world is one of Earth s volumetrically largest ecosystems.

Rhode islandUnited statesUniversity of rhode islandArthur spivackJustine sauvageSteven dhondtNature communicationsDark energy biosphere investigationsSpace administrationOcean drilling programUniversity of gothenburgRhode island nuclear science centerUs national aeronauticsUs national science foundationGraduate schoolRhode island nuclear science

University Of Rhode Island: URI Researchers: Microbes Deep Beneath Seafloor Survive On Byproducts Of Radioactive Process

University Of Rhode Island: URI Researchers: Microbes Deep Beneath Seafloor Survive On Byproducts Of Radioactive Process
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Rhode islandUnited statesArthur spivackSteven dhondtDark energy biosphere investigationsSpace administrationOcean drilling programRhode island nuclear science centerUs national aeronauticsUs national science foundationRhode island nuclear scienceAtlantic oceansIntegrated ocean drilling programPerseverance roverScience foundationDark energy biosphere

URI researchers: Microbes deep beneath seafloor survive on byproducts of radioactive process

URI researchers: Microbes deep beneath seafloor survive on byproducts of radioactive process
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Rhode islandUnited statesUniversity of rhode islandArthur spivackJustine sauvageSteven dhondtNature communicationsDark energy biosphere investigationsSpace administrationOcean drilling programUniversity of gothenburgRhode island nuclear science centerUs national aeronauticsUs national science foundationGraduate schoolRhode island nuclear science