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Mussel selectivity for high-quality food drives carbon inputs into open-coast intertidal ecosystems

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dc.creator Bracken, Matthew E. S.
dc.creator Menge, Bruce A.
dc.creator Foley, Melissa M.
dc.creator Sorte, Cascade J. B.
dc.creator Lubchenco, Jane
dc.creator Schiel, David R.
dc.date.accessioned 2012-08-06T23:57:15Z
dc.date.available 2012-08-06T23:57:15Z
dc.date.issued 2012
dc.identifier.citation Bracken MES, Menge BA, Foley MM, Sorte CJB, Lubchenco J, Schiel DR (2012) Mussel selectivity for high-quality food drives carbon inputs into open-coast intertidal ecosystems. Marine Ecology Progress Series 459:53-62 en_US
dc.identifier.uri http://hdl.handle.net/1957/31913
dc.description This is the publisher’s final pdf. The published article is copyrighted by Inter-Research and can be found at: http://www.int-res.com/journals/meps/meps-home/. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. en_US
dc.description.abstract Filter-feeding invertebrates consume phytoplankton and detritus and therefore serve as important mediators of the exchange of materials from nearshore pelagic to intertidal benthic ecosystems. Here, we evaluated the linkages between nearshore and intertidal systems on temperate rocky reefs on the coasts of Oregon, USA, and New Zealand’s South Island. We used differences in the concentrations of both nearshore particulate organic carbon and chlorophyll a (chl a), a proxy for phytoplankton availability, at different sites in Oregon and New Zealand to evaluate the influences of suspended particulate organic material (POM) quality and quantity on the rates of carbon inputs associated with intertidal mussels (Mytilus californianus in Oregon and Mytilus galloprovincialis in New Zealand). We also analyzed the carbon stable isotope ratios (δ¹³C) of intertidal mussels and nearshore POM to examine changes in mussel growth in carbon relative to changes in their potential food sources along gradients of POM quality (i.e. carbon-to-chlorophyll ratios, C:chl a). In both Oregon and New Zealand, the δ¹³C in mussel tissues did not change along a gradient of food quality, whereas the δ¹³C of the POM declined as food quality declined (i.e. C:chl a increased), suggesting that mussels were selectively consuming high-quality food. We also found that the availability of phytoplankton, a high-quality component of the POM, was a better predictor of mussel growth in carbon (mg C g⁻¹ d⁻¹) than the total concentration of particulate organic carbon, which includes both higher-quality phytoplankton and lower-quality detrital material. Our results highlight the necessity of considering POM quality while evaluating the role of filter-feeders as mediators of carbon inputs into intertidal systems. en_US
dc.description.sponsorship Funding was provided by the National Science Foundation (grants OCE-0351778 to J. Stachowicz and OCE-0549944 to S. Williams and M.E.S.B.), Bodega Marine Laboratory institutional funds (to M.E.S.B.), the Andrew W. Mellon Foundation (to J.L., B.A.M., and D.R.S.), the Partnership for Interdisciplinary Studies of Coastal Oceans (PISCO; to J.L. and B.A.M.), and the New Zealand Foundation for Research, Science and Technology (to D.R.S.). This is contribution number 417 from PISCO, a long-term, large-scale ecological consortium funded by the David and Lucile Packard and the Gordon and Betty Moore Foundations, contribution number 283 from the Marine Science Center, Northeastern University, and a contribution from the Bodega Marine Laboratory, University of California, Davis. en_US
dc.language.iso en_US en_US
dc.publisher Inter-Research en_US
dc.relation.ispartofseries Marine Ecology Progress Series en_US
dc.relation.ispartofseries Vol. 459 (2012) en_US
dc.subject Benthic–pelagic coupling en_US
dc.subject Intertidal en_US
dc.subject Mussel en_US
dc.subject Mytilus en_US
dc.subject Particulate organic carbon en_US
dc.subject Phytoplankton en_US
dc.subject Growth en_US
dc.subject Spatial subsidies en_US
dc.subject Stable isotope en_US
dc.title Mussel selectivity for high-quality food drives carbon inputs into open-coast intertidal ecosystems en_US
dc.type Article en_US
dc.identifier.doi 10.3354/meps09764


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