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Implications of Ocean Acidification for Three Pacific Arctic Bivalve Species

dc.contributor.advisorGrebmeier, Jacqueline Men_US
dc.contributor.authorGoethel, Christina Leighen_US
dc.description.abstractSea ice retreat, seawater warming, and now ocean acidification are recognized as physical stressors impacting the productive benthic communities on the shallow continental shelves of the northern Bering and Chukchi Seas, particularly calcifying organisms like bivalves that are prey items for benthivorous predators including walruses, eiders, and bearded seals. Using time-series benthic faunal collections and laboratory experiments, my research: 1) evaluates the abundance and dominant size class of Macoma calcarea in the northern Bering Sea and the southeastern Chukchi Sea during summer months from 1998-2014, and 2) investigates the effects of ocean acidification on growth and oxygen consumption of two size classes of three dominant bivalve species, M. calcarea, Astarte montagui, and Astarte borealis. Results suggest a northward shift in bivalve distribution (p < 0.01) and a recent size reduction at both sites. Experimental results suggest that one dominant size class (2.1-3 cm) will be more susceptible to ocean acidification.en_US
dc.titleImplications of Ocean Acidification for Three Pacific Arctic Bivalve Speciesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.subject.pqcontrolledEnvironmental scienceen_US
dc.subject.pquncontrolledBering Seaen_US
dc.subject.pquncontrolledChukchi Seaen_US
dc.subject.pquncontrolledOcean Acidificationen_US
dc.subject.pquncontrolledPacific Arcticen_US

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