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Full-Text Articles in Life Sciences

Oysters And Eelgrass: Potential Partners In A High Pco2 Ocean, Maya L. Groner, Colleen A. Burge, Ruth Cox, Natalie D. Rivlin, Mo Turner, Kathryn L. Van Alstyne Dr., Sandy Wyllie-Echeverria, John Bucci, Philip Staudigel, Carolyn S. Friedman Oct 2018

Oysters And Eelgrass: Potential Partners In A High Pco2 Ocean, Maya L. Groner, Colleen A. Burge, Ruth Cox, Natalie D. Rivlin, Mo Turner, Kathryn L. Van Alstyne Dr., Sandy Wyllie-Echeverria, John Bucci, Philip Staudigel, Carolyn S. Friedman

Shannon Point Marine Center Faculty Publications

Ocean acidification (OA) threatens calcifying organisms such as the Pacific oyster, Crassostrea gigas. In contrast, eelgrass, Zostera marina, can benefit from the increase in available carbon for photosynthesis found at a lower seawater pH. Seagrasses can remove dissolved inorganic carbon from OA environments, creating local daytime pH refugia. Pacific oysters may improve the health of eelgrass by filtering out pathogens such as Labyrinthula zosterae, which causes eelgrass wasting disease (EWD). Using a laboratory experiment, we found that co-culture of eelgrass with oysters reduced the severity of EWD. EWD was also reduced in more acidic waters, which negatively affect oyster growth.


Sublethal Effects Of Crude Oil And Chemical Dispersant On The Eastern Oyster (Crassostrea Virginica) At Multiple Life History Stages, Sara Marie Garcia Mar 2018

Sublethal Effects Of Crude Oil And Chemical Dispersant On The Eastern Oyster (Crassostrea Virginica) At Multiple Life History Stages, Sara Marie Garcia

Graduate Theses and Dissertations

Oil spills in the marine environment can threaten vulnerable ecosystems that support ecologically and economically significant organisms, such as the eastern oyster (Crassostrea virginica), in coastal habitats. The use of chemical dispersant (Corexit 9500) was applied as a cleanup effort in response to the Deepwater Horizon blowout to minimize crude oil slicks, but also resulted in increased concentrations of polycyclic aromatic hydrocarbons in the water column. The effects of increased soluble fractions of crude oil and dispersant components may be harmful to marine organisms. This study aimed to investigate possible sublethal impacts to the eastern oyster at multiple life history ...