For Seagrass, Biodiversity Is Both a Goal and A Means For Restoration

By Kat Kerlin

Coral reefs, seagrass meadows and mangrove forests work together to make the Coral Triangle of Indonesia a hotspot for marine biodiversity. The system supports valuable fisheries and endangered species and helps protect shorelines. But it is in global decline due to threats from coastal development, destructive fishing practices and climate change.

From left, Jordan Hollarsmith of Hasanuddin University and UC Davis, and Susan Williams and Katie DuBois of UC Davis look at seabed plots in Indonesia. Photo by Christine Sur, UC Davis

Atom-by-Atom Growth Chart For Shells Helps Decode Past Climate

By Becky Oskin

For the first time scientists can see how the shells of tiny marine organisms grow atom-by-atom, a new study reports. The advance provides new insights into the mechanisms of biomineralization and will improve our understanding of environmental change in Earth’s past.

Foraminifera

Foraminifera are marine plankton with complex shells. The shells of dead forams in ocean sediments form a record of climate hundreds of millions of years into the past.

Led by researchers from the University of California, Davis and the University of Washington, with key support from the U.S. Department of Energy’s Pacific Northwest National Laboratory, the team examined an organic-mineral interface where the first calcium carbonate crystals start to appear in the shells of foraminifera, a type of plankton.

West Coast Scientists Recommend Immediate Action Plan to Combat Ocean Acidification

By Kat Kerlin

Global carbon dioxide emissions are triggering permanent changes to ocean chemistry along the West Coast. Failure to act on this fundamental change in seawater chemistry, known as ocean acidification, is expected to have devastating ecological consequences for the West Coast in the decades to come, warns a multistate panel of scientists, including two from UC Davis Bodega Marine Laboratory.

Their report, issued this week, urges immediate action and outlines a regional strategy to combat the alarming global changes underway. Inaction now will reduce options and impose higher costs later, the report said.