Articles from April 2019

Tipping points of gastric pH regulation and energetics in the sea urchin larva exposed to CO2 induced seawater acidification

Highlights We determined the sensitivity thresholds for survival development and growth in sea urchin larvae exposed to acidified conditions. Determination of physiological parameters including midgut pH homeostasis, metabolic rates and expression of midgut acid-base transporters demonstrates a physiological tipping point at pH 7.2. This work demonstrates substantial resilience of an important

Impacts of urban carbon dioxide emissions on sea-air flux and ocean acidification in nearshore waters

Devon Northcott, Jeff Sevadjian, Diego A. Sancho-Gallegos, Chris Wahl, Jules Friederich, Francisco P. Chavez Abstract Greatly enhanced atmospheric carbon dioxide (CO2) levels relative to well-mixed marine air are observed during periods of offshore winds at coastal sensor platforms in Monterey Bay, California, USA. The highest concentrations originate from urban and

Better Regional Ocean Observing Through Cross-National Cooperation: A Case Study From the Northeast Pacific

John A. Barth1*, Susan E. Allen2, Edward P. Dever1, Richard K. Dewey3, Wiley Evans4, Richard A. Feely5, Jennifer L. Fisher1,6, Jonathan P. Fram1, Burke Hales1, Debby Ianson2,7, Jennifer Jackson4, Kim Juniper3,8, Orest Kawka9, Deborah Kelley9, Jody M. Klymak8, John Konovsky10, P. Michael Kosro1, Alexander Kurapov1,11, Emilio Mayorga9, Parker MacCready9, Jan