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Seagrasses Turn Back the Clock on Ocean Acidification


Expansive Study Shows Seagrass Meadows Can Buffer Ocean Acidification
by Kat Kerlin
March 31, 2021
Spanning six years and seven seagrass meadows along the California coast, a paper from the University of California, Davis, is the most extensive study yet of how seagrasses can buffer ocean acidification.
The study, published today in the journal Global Change Biology, found that these unsung ecosystems can alleviate low pH, or more acidic, conditions for extended periods of time, even at night in the absence of photosynthesis. It found the grasses can reduce local acidity by up to 30 percent.
“This buffering temporarily brings seagrass environments back to preindustrial pH conditions, like what the ocean might have experienced around the year 1750,” said co-author Tessa Hill, a UC Davis professor in the Department of Earth and Planetary Sciences and Bodega Marine Laboratory. ....

Bodega Harbor , United States , Monterey Bay Aquarium , Mission Bay , Elkhorn Slough , Newport Bay , Tomales Bay , San Diego State University , Brian Gaylord , Auroram Ricart , Supriya Shukla , Sarah Merolla , Kristen Elsmore , Yuichiro Takeshita , Aaront Ninokawa , Kristyj Kroeker , Tessa Hill , Eric Sanford , University Of California , Bodega Ocean Acidification Research Group , Department Of Earth , Monterey Bay Aquarium Research Institute , California Ocean Protection Council , Planetary Sciences , Bigelow Laboratory For Ocean Sciences , Uc Davis Bodega Marine Laboratory ,

Algae growing on dead coral could paint a falsely rosy portrait of reef health


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IMAGE: Carnegie s Manoela Romanó de Orte and Ken Caldeira led a research team that deployed a cutting-edge incubator to monitor the metabolic activity of coral and algae in an area of.
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Credit: Image courtesy of Ken Caldeira.
Washington, DC Algae colonizing dead coral are upending scientists ability to accurately assess the health of a coral reef community, according to new work from a team of marine science experts led by Carnegie s Manoela Romanó de Orte and Ken Caldeira. Their findings are published in
Limnology and Oceanography.
Corals are marine invertebrates that build tiny exoskeletons, which accumulate to form giant coral reefs. Widely appreciated for their beauty, these reefs are havens for biodiversity and crucial for the economies of many coastal communities. But they are endangered by ocean warming, seawater acidification, extreme storms, pollution, and overfishing. ....

United States , Alina Szmant , Rebecca Albright , Robert Whitehead , Yuichiro Takeshita , Carnegie Manoela Roman , Tyler Cyronak , Alyssa Griffin , Kennedy Wolfe , David Koweek , Ken Caldeira , California Academy Of Sciences , University Of Queensland , Monterey Bay Aquarium Research Institute , University Of North Carolina , Scripps Institution Of Oceanography , Nova Southeastern University , Manoela Roman , Ocean Visions , California Academy , Scripps Institution , North Carolina Wilmington Deployed , Great Barrier Reef , Marine Freshwater Biology , Pollution Remediation , Ecology Environment ,