Now showing items 11-15 of 15
Variation in Carbonate Chemistry throughout the San Juan Archipelago
The absorption of carbon dioxide into the ocean acidifies the waters and has the potential to drastically alter the chemistry upon which organisms and ecosystems depend. This effect, however, is expected to vary between water masses that already differ in terms of their existing carbonate chemistry. The San Juan Archipelago ...
Biomass Effects on Carbonate Chemistry in both a Flow-through and Static Experimental Laboratory Set-up
There are many things to consider when setting up experimental laboratories, especially in the context of ocean acidification. We studied the impact of biomass load and flow-through rate on the carbonate chemistry of aquaria at two different levels of pH. We found that all of these factors play a large role in how consistent ...
Spatial and Temporal Variability in Carbonate Chemistry in San Juan Archipelago
This is the first study that characterizes the carbonate parameters in the Salish Sea surrounding the San Juan Archipelago. Water samples were collected from 9 sites on multiple days and analyzed for total alkalinity and dissolved inorganic carbon. Results show high spatial and temporal variability in carbonated parameters. ...
Effects of Ocean Acidification on Limpet Lottia scutum's Shell Strength
Calcium carbonate shells undergo dissolution in acidified conditions. As carbon dioxide in the atmosphere increases, the ocean's pH is lowered. Lottia scutum is used in this experiment to demonstrate the affect of ocean acidification on calcium carbonate material, which many marine organisms possess. As a limpet's shell ...
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 ...