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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.
Investigation of the carbonate chemistry of two tide pools on San Juan Island
Open ocean observations have shown that increasing levels of anthropogenically-derived atmospheric CO2 are causing acidification of the world’s oceans. Yet little is known about coastal acidification and very few studies have characterized the carbonate chemistry of coastal zones or intertidal rock pools where many calcifying ...
Variation of environmental forcings and the potential for changes in carbonate chemistry of the San Juan Archipelago
The carbonate chemistry of the San Juan Archipelago is extremely varied between regions of low to high tidal flushing. Salinity seems to be a driving parameter of the carbonate system through its effects on alkalinity. Freshwater from the Fraser River may control the environmental characteristics of water moving through the ...
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 ...
Tidepools in Dead Man’s Cove show large fluctuations in carbonate chemistry during the low tide in comparison to Haro Stait water
During the low tide, tidepools are under different physio-chemical conditions than the coastal waters. This includes the carbonate chemistry, which is especially pertinent to study due to the threat of ocean acidification on carbonate chemistry. We examined the fluctuation in DIC, total alkalinity, pH, temperature, dissolved ...
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 ...
A Tale of Two Tide Pools: Examining Carbonate Chemistry in the Intertidal
Characterization of physical conditions in tide pools is quite common in the scientific literature, but there is a marked paucity of information regarding the carbonate chemistry of these ecosystems; the majority of studies focus on temperature, salinity, and dissolved oxygen measurements. This lack of information is especially ...
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. ...
Variations in Tide Pool Carbonate Chemistry and Temperature
Tide pools are known to have extreme variations in both their temperature and carbonate chemistry while they are isolated from the surrounding waters. These extreme environments provide an interesting view into how organisms are able to cope with large variations in temperature, pH and total carbon. The knowledge of how ...
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 ...