Now showing items 11-15 of 15
Bacteria Abundance in Response to Increasingly Acidic Conditions
The objective of this mesocosm experiment is to determine differences in bacteria abundance in normal (600μatm), medium (1000μatm), and high (1300μatm) CO2 concentrations. Mesocosms serve as an intermediate for lab and field studies; mesocosms provide insight about changes to food webs, communities, and ecosystems.
THE TALE OF TWO TIDEPOOLS: EXAMINING CARBONATE CHEMISTRY IN THE INTERTIDAL
Tidepools are a prominent feature of the intertidal zone, housing a great diversity of both macroalgae and mobile animal components. Tidepool organisms are exposed to wide variations in temperature, salinity, and pH over the course of the low tide. As of yet, very few studies have quantified the changes in carbonate chemistry ...
Sources of Error in Carbonate Chemistry: What happens when Biology and Chemistry meet?
Two different experimental systems were used to evaluate sources of error in carbonate chemistry measurements at Friday Harbor Labs, WA. One system, set up in Laboratory 6, examined the effects of different filters and a UV sterilizer. The second system explored the carbon input from feeding live versus dead algae in the ...
Interactions of diet quality and pH in growth and mortality in the marine gastropod Crepidula fornicata
Ocean acidification metabolically stresses marine organisms, especially those that must expend energy to deposit calcium carbonate shells and skeletons. Nutrition may interact with pH to exacerbate or counterbalance acidification effects in early developmental stages. Previous work had indicated that growth of larvae and ...
Effects of Temperature and pH on Larval and Juvenile Development in the Marine Gastropod, Crepidula fornicata
Rising atmospheric CO2 levels are associated with warming and acidification in coastal marine ecosystems, with impacts that are especially acute for marine calcifiers. We have investigated the interactive effects of pH and temperature on larval growth, time to metamorphic competence, and juvenile growth in the marine ...