NOAA, the Pacific Islands Ocean Observing System (PacIOOS), and partners have launched a new buoy in Fagatele Bay within the National Marine Sanctuary of American Samoa to measure carbon dioxide and other important seawater characteristics within the bay’s vibrant tropical coral reef ecosystem. “This new monitoring effort in a remote area of the Pacific Ocean […]
In recent decades, acidification of the open ocean has shown consistent increases. However, analysis of long-term data in coastal waters shows that the pH is highly variable because of coastal processes and anthropogenic carbon inputs. It is therefore important to understand how anthropogenic carbon inputs and other natural or anthropogenic factors influence the temporal trends […]
Coccolithophores are globally distributed microscopic marine algae that exert a major influence on the global carbon cycle through calcification and primary productivity. There is recent interest in coccolithophore polar communities, however field observations regarding their biogeographic distribution are scarce for the Southern Ocean. This study documents the latitudinal variability in the coccolithophore assemblage composition and […]
Position: Research Assistantship (MS in Marine Biology) at the University of Alaska Fairbanks. One MS student is sought to study the physiological impacts of future ocean change multi-stressors (OA, increased temperature, reduced salinity) on key marine invertebrates in coastal Alaska. Taking an integrative approach, this project includes biochemical, microscopy and carbonate chemistry analyses with the […]
Highlights • 5-day coral skeletal liner extension growth was measured in the field using calcein. • Linear extension was measured for three consecutive 5-day growth periods spanning a tidal cycle. • Liner extension measurements were made on petrographically thin-sectionedskeletons with a confocal microscope. • Skeletal linear extension was consistent through time despite large variation in […]
40%: The increase in atmospheric carbon dioxide (CO2) levels since the start of the industrial revolution.