Daily timing of emersion and elevated atmospheric CO2 concentration affect photosynthetic performance of the intertidal macroalga Ulva lactuca (Chlorophyta) in sunlight

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Higher levels of carbon dioxide (CO2) enhanced growth of a green seaweed (Ulva lactuca). (Laboratory study)

Understanding ocean acidification impacts on organismal to ecological scales

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Ocean acidification (OA) research seeks to understand how marine ecosystems and global elemental cycles will respond to changes in seawater carbonate chemistry in combination with other environmental perturbations such as warming, eutrophication, and deoxygenation. This paper discusses the effectiveness and limitations of current research approaches used to address this goal. ...

Short-lived radium isotopes on the Scotian Shelf: Unique distribution and tracers of cross-shelf CO2 and nutrient transport

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

This study estimated vertical and lateral diffusion coefficients for the Scotian Shelf region using a numerical 2-D approach. It also estimates cross-shelf transport of carbon and nutrients and provides a potential mechanism for CO2 outgassing on the shelf.

Climatological Distributions of pH, pCO2, Total CO2, Alkalinity, and CaCO3 Saturation in the Global Surface Ocean

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

This report describes climatological mean monthly distributions of pH, total carbon dioxide concentration, and the degree of CaCO3 saturation for the global surface ocean waters (excluding coastal areas) to depths of approximately 160 feet (50 meters).

The swimming kinematics of larval Atlantic cod, Gadus morhua L., are resilient to elevated seawater pCO2

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Video analysis of Atlantic cod larvae (12 and 27 days post-hatch) showed no significant differences in most aspects of their swimming kinematics when they had been cultured under ocean acidification conditions. (Laboratory study)

Interactive effects of elevated temperature and CO2 levels on metabolism and oxidative stress in two common marine bivalves (Crassostrea virginica and Mercenaria mercenaria)

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Hard shell clams and eastern oysters exposed to moderate warming and ocean acidification conditions showed no sign of persistent oxidative stress. This indicates that long-term exposure to moderately elevated CO2 and temperature minimally affects the cellular redox status in these bivalve species and that the earlier observed negative physiological effects ...

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