Oysters, Eelgrass, Ocean acidification, Calcifying organisms
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.
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© 2018 The Authors. The Bulletin of the Ecological Society of America, published by Wiley Periodicals, Inc., on behalf of the Ecological Society of America. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Groner, Maya L.; Burge, Colleen A.; Cox, Ruth; Rivlin, Natalie D.; Turner, Mo; Van Alstyne, Kathryn L. Dr.; Wyllie-Echeverria, Sandy; Bucci, John; Staudigel, Philip; and Friedman, Carolyn S., "Oysters and Eelgrass: Potential Partners in a High PCO2 Ocean" (2018). Shannon Point Marine Center Faculty Publications. 18.
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