Natural circulation patterns along the west coast of North America periodically draw subthermocline, low pH waters into shallow coastal areas. The presence of corrosive, low pH waters, caused by ocean acidification (OA), is frequently observed along the North American west coast. Reduction of global atmospheric CO2 inputs is the appropriate management focus for decreasing OA, but there are also many management decisions made at regional to local spatial scales that can lessen the exposure to or limit the effects of atmospheric CO2. Here, we describe these local management actions and identify the science needs that would assist local managers in deciding whether, and how best, to address local OA. Science needs are diverse, but three commonalities emerge. First, managers need a comprehensive monitoring program that expands understanding of spatial and temporal OA patterns and how OA changes influence marine ecosystems. Second, they require mechanistic, process-based models that differentiate natural from anthropogenically driven OA patterns and the extent to which local actions would affect OA conditions in context of what is largely a global atmospheric-driven phenomenon. Models present the opportunity to visualize outcomes with and without the changes in management actions included in model scenarios. Third, managers need models that identify which locales are most and least vulnerable to future changes due to OA. Understanding vulnerability will assist managers in better siting facilities (e.g., aquaria) or protecting marine resources. The required monitoring and modeling are all achievable, with much of the necessary research and development already underway. The challenge will be to ensure good and continuing communication between the management community that requires the information and the scientific community that is often hesitant to provide recommendations while uncertainty remains high.
Boehm, A.B., M.Z. Jacobson, M.J. O’Donnell, M. Sutula, W.W. Wakefield, S.B. Weisberg, and E. Whiteman. 2015. Ocean acidification science needs for natural resource managers of the North American west coast. Oceanography 28(2):170–181, https://doi.org/10.5670/oceanog.2015.40.
Barton, A., G.G. Waldbusser, R.A. Feely, S.B. Weisberg, J.A. Newton, B. Hales, S. Cudd, B. Eudeline, C.J. Langdon, I. Jefferds, and others. 2015. Impacts of coastal acidification on the Pacific Northwest shellfish industry and adaptation strategies implemented in response. Oceanography 28(2):146–159, https://doi.org/10.5670/oceanog.2015.38.
Barton, A., B. Hales, G.G. Waldbusser, C. Langdon, and R.A. Feely. 2012. The Pacific oyster, Crassostrea gigas, shows negative correlation to naturally elevated carbon dioxide levels: Implications for near-term ocean acidification effects. Limnology and Oceanography 57:698–710, https://doi.org/10.4319/lo.2012.57.3.0698.
Bednaršek, N., R.A. Feely, J.C.P. Reum, B. Peterson, J. Menkel, S.R. Alin, and B. Hales. 2014. Limacina helicina shell dissolution as an indicator of declining habitat suitability owing to ocean acidification in the California Current Ecosystem. Proceedings of the Royal Society B, https://doi.org/10.1098/rspb.2014.0123.
Bernstein, B.B., and S.B. Weisberg. 2003. Southern California’s marine monitoring system ten years after the National Research Council evaluation. Environmental Monitoring and Assessment 81:3–14, https://doi.org/10.1023/A:1021359900391.
Borges, A., and N. Gypens. 2010. Carbonate chemistry in the coastal zone responds more strongly to eutrophication than to ocean acidification. Limnology and Oceanography 55:346–353, https://doi.org/10.4319/lo.2010.55.1.0346.
Busch, D.S., M.J. O’Donnell, C. Hauri, K.J. Mach, M. Poach, S.C. Doney, and S.R. Signorini. 2015. Understanding, characterizing, and communicating responses to ocean acidification: Challenges and uncertainties. Oceanography 28(2):30–39, https://doi.org/10.5670/oceanog.2015.29.
Byrne, R.H. 2014. Measuring ocean acidification: New technology for a new era of ocean chemistry. Environmental Science & Technology 48:5,352–5,360, https://doi.org/10.1021/es405819p.
California Coastal Commission. 2007. Staff Report and Recommendation: Consistency Certification. CC-079-06, 186 pp., http://documents.coastal.ca.gov/reports/2007/4/Th7a-4-2007.pdf.
California State Assembly. 2006. Assembly Bill No. 32: California Global Warming Solutions Act of 2006. Overview at: http://www.leginfo.ca.gov/pub/05-06/bill/asm/ab_0001-0050/ab_32_bill_20060927_chaptered.pdf.
Canadian Council of Ministers of the Environment. 1999. Canadian Water Quality Guidelines for the Protection of Aquatic Life: pH (Marine). 3 pp., http://ceqg-rcqe.ccme.ca/download/en/203.
Center for Biological Diversity. 2013. Petition for Additional Water Quality Criteria and Guidance Under Section 304 of the Clean Water Act, 33 U.S.C. § 1314, to Address Ocean Acidification (before the Environmental Protection Agency). 66 pp., http://www.biologicaldiversity.org/campaigns/ocean_acidification/pdfs/EPA_OA_petition_2013.pdf.
Center for Biological Diversity. Center for Biological Diversity vs US EPA, Order on Cross Motions for Summary Judgment. No. 2:13-cv-01866-JLR (United States District Court Western District of Washington at Seattle, February 19, 2015).
Comeau, S., R. Jeffree, J.-L. Teyssié, and J.-P. Gattuso. 2010. Response of the Arctic pteropod Limacina helicina to projected future environmental conditions. PLoS ONE 5(6):e11362, https://doi.org/10.1371/journal.pone.0011362.
Cooley, S.R., E.B. Jewett, J. Reichert, L. Robbins, G. Shrestha, D. Wieczorek, and S.B. Weisberg. 2015. Getting ocean acidification on decision makers’ to-do lists: Dissecting the process through case studies. Oceanography 28(2):198–211, https://doi.org/10.5670/oceanog.2015.42.
Dixson, D.L., A.R. Jennings, J. Atema, and P.L. Munday. 2014. Odor tracking in sharks is reduced under future ocean acidification conditions. Global Change Biology 21:1,454–1,462, https://doi.org/10.1111/gcb.12678.
Doney, S.C., V.J. Fabry, R.A. Feely, and J.A. Kleypas. 2009. Ocean acidification: The other CO2 problem. Annual Review of Marine Science 1:169–192, https://doi.org/10.1146/annurev.marine.010908.163834.
Doney, S.C., N. Mahowald, I. Lima, R.A. Feely, F.T. Mackenzie, J.-F. Lamarque, and P.J. Rasch. 2007. Impact of anthropogenic atmospheric nitrogen and sulfur deposition on ocean acidification and the inorganic carbon system. Proceedings of the National Academy of Sciences of the United States of America 104:14,580–14,585, https://doi.org/10.1073/pnas.0702218104.
Duarte, C.M., I.E. Hendriks, T.S. Moore, Y.S. Olsen, A. Steckbauer, L. Ramajo, J. Carstensen, J.A. Trotter, and M. McCullough. 2013. Is ocean acidification an open-ocean syndrome? Understanding anthropogenic impacts on seawater pH. Estuaries and Coasts 36:221–236, https://doi.org/10.1007/s12237-013-9594-3.
Eder, B., and S. Yu. 2006. A performance evaluation of the 2004 release of Models-3 CMAQ. Atmospheric Environment 40:4,811–4,824.
Environment Canada. 2014. Greenhouse Gas Emission Regulations. https://www.ec.gc.ca/cc/default.asp?lang=En&n=E97B8AC8-1.
Feely, R.A., S.R. Alin, J. Newton, C.L. Sabine, M. Warner, A. Devol, C. Krembs, and C. Maloy. 2010. The combined effects of ocean acidification, mixing, and respiration on pH and carbonate saturation in an urbanized estuary. Estuarine, Coastal and Shelf Science 88:442–449.
Feely, R.A., C.L. Sabine, R.H. Byrne, F.J. Millero, A.G. Dickson, R. Wanninkhof, A. Murata, L.A. Miller, and D. Greeley. 2012. Decadal changes in the aragonite and calcite saturation state of the Pacific Ocean. Global Biogeochemical Cycles 26, GB3001, https://doi.org/10.1029/2011GB004157.
Feely, R.A., C.L. Sabine, J.M. Hernandez-Ayon, D. Ianson, and B. Hales. 2008. Evidence for upwelling of corrosive “acidified” water onto the continental shelf. Science 320:1,490–1,492, https://doi.org/10.1126/science.1155676.
Feely, R.A., C.L. Sabine, K. Lee, W. Berelson, J. Kleypas, V.J. Fabry, and F.J. Millero. 2004. Impact of anthropogenic CO2 on the CaCO3 system in the oceans. Science 305:362–366, https://doi.org/10.1126/science.1097329.
Gaylord, B., K.J. Kroeker, J.M. Sunday, K.M. Anderson, J.P. Barry, N.E. Brown, S.D. Connell, S. Dupont, K.E. Fabricius, J.M. Hall-Spencer, and others. 2014. Ocean acidification through the lens of ecological theory. Ecology 96:3–15, https://doi.org/10.1890/14-0802.1.
Griffith, J.P., E.A. Fulton, R. Gorton, and A.J. Richardson. 2012. Predicting interactions among fishing, ocean warming, and ocean acidification in a marine system with whole-ecosystem models. Conservation Biology 26:1,145–1,152, https://doi.org/10.1111/j.1523-1739.2012.01937.x.
Gruber, N., C. Hauri, Z. Lachkar, D. Loher, T.L. Frölicher, and G.-K. Plattner. 2012. Rapid progression of ocean acidification in the California Current system. Science 337:220–223, https://doi.org/10.1126/science.1216773.
Haluschak, E. 2014. Ocean acidification concerns Baynes Sound shellfish growers. Comox Valley Record. http://www.comoxvalleyrecord.com/news/248273891.html
Hauri, C., N. Gruber, M. Vogt, S.C. Doney, R.A. Feely, Z. Lachkar, A. Leinweber, A.M.P. McDonnell, M. Munnich, and G.-K. Plattner. 2013. Spatiotemporal variability and long-term trends of ocean acidification in the California Current System. Biogeosciences 10:193–216, https://doi.org/10.5194/bg-10-193-2013.
Hendriks, I.e., Y.S. Olsen, L. Ramajo, L. Basso, A. Steckbauer, T.S. Moore, J. Howard, and C.M. Duarte. 2014. Photosynthetic activity buffers ocean acidification in seagrass meadows. Biogeosciences 11:333–346, https://doi.org/10.5194/bg-11-333-2014.
Hoenicke, R., J.A. Davis, A. Gunther, T.E. Mumley, K. Abu-Saba, and K. Taberski. 2003. Effective application of monitoring information: The case of San Francisco Bay. Environmental Monitoring and Assessment 81:15–25, https://doi.org/10.1023/A:1021344117229.
Hofmann, G.E., T.G. Evans, M.W. Kelly, J.L. Padilla-Gamiño, C.A. Blanchette, L. Washburn, F. Chan, M.A. McManus, B.A. Menge, B. Gaylord, and others. 2014. Exploring local adaptation and the ocean acidification seascape: Studies in the California Current Large Marine Ecosystem. Biogeosciences 11:1,053–1,064, https://doi.org/10.5194/bg-11-1053-2014.
Hofmann, G.E., J.E. Smith, K.S. Johnson, U. Send, L.A. Levin, F. Micheli, A. Paytan, N.N. Price, B. Peterson, Y. Takeshita, and others. 2011. High-frequency dynamics of ocean pH: A multi-ecosystem comparison. PLoS ONE 6(12):e28983, https://doi.org/10.1371/journal.pone.0028983.
IOOS (Integrated Ocean Observing System). 2014. Ocean Technology Transition Project. http://www.ioos.noaa.gov/marine_sensors/ocean_tech.html.
Jacobson, M.Z. 2005. Studying ocean acidification with conservative, stable numerical schemes for nonequilibrium air-ocean exchange and ocean equilibrium chemistry. Journal of Geophysical Research 110, D07302, https://doi.org/10.1029/2004JD005220.
Jacobson, M.Z. 2010. Enhancement of local air pollution by urban CO2 domes. Environmental Science & Technology 44(7): 2497–2502, https://doi.org/10.1021/es903018m.
Kelly, R.P., M.M. Foley, W.S. Fisher, R.A. Feely, B.S. Halpern, G.G. Waldbusser, and M.R. Caldwell. 2011. Mitigating local causes of ocean acidification with existing laws. Science 332:1,036–1,037, https://doi.org/10.1126/science.1203815.
Kroeker, K.J., R.L. Kordas, R.N. Crim, and G.G. Singh. 2010. Meta-analysis reveals negative yet variable effects of ocean acidification on marine organisms: Biological responses to ocean acidification. Ecology Letters 13:1,419–1,434, https://doi.org/10.1111/j.1461-0248.2010.01518.x.
Levin, P.S., M.J. Fogarty, S.A. Murawski, and D. Fluharty. 2009. Integrated ecosystem assessments: Developing the scientific basis for ecosystem-based management of the ocean. PLoS Biology 7(1):e1000014, https://doi.org/10.1371/journal.pbio.1000014.
Martz, T.R., L.G. Connelly, and K.S. Johnson. 2010. Testing the Honeywell Durafet for seawater pH applications. Limnology and Oceanography 8:172–184, https://doi.org/10.4319/lom.2010.8.172.
McLaughlin, K., S.B. Weisberg, A.G. Dickson, G.E. Hofmann, J.A. Newton, D. Aseltine-Neilson, A. Barton, S. Cudd, R.A. Feely, I.W. Jefferds, and others. 2015. Core principles of the California Current Acidification Network: Linking chemistry, physics, and ecological effects. Oceanography 28(2):160–169, https://doi.org/10.5670/oceanog.2015.39.
Moore, S., K. Stark, J. Bos, P. Williams, J. Newton, and K. Dzinbal, eds. 2014. Puget Sound Marine Waters: 2013 Overview. Puget Sound Ecosystem Monitoring Program Marine Waters Workgroup, 60 pp, http://www.psp.wa.gov/downloads/psemp/PSmarinewaters_2013_overview.pdf.
Orr, J.C., V.J. Fabry, O. Aumont, L. Bopp, S.C. Doney, R.A. Feely, A. Gnanadesikan, N. Gruber, A. Ishida, F. Joos, and others. 2005. Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms. Nature 437:681–686, https://doi.org/10.1038/nature04095.
Pacific Fishery Management Council. 2013. Pacific Coast Fishery Ecosystem Plan for the US Portion of the California Current Large Marine Ecosystem. Pacific Fishery Management Council, Portland, OR, 195 pp., http://www.pcouncil.org/wp-content/uploads/FEP_FINAL.pdf.
Royal Society. 2005. Ocean Acidification Due to Increasing Atmospheric Carbon Dioxide. The Royal Society, London, 57 pp., https://royalsociety.org/~/media/Royal_Society_Content/policy/publications/2005/9634.pdf.
Sunda, W.G., and W.-J. Cai. 2012. Eutrophication induced CO2-acidification of subsurface coastal waters: Interactive effects of temperature, salinity, and atmospheric PCO2. Environmental Science & Technology 46:10,651–10,659, https://doi.org/10.1021/es300626f.
Tseng, Y.-C., M.Y. Hu, M. Stumpp, L.-Y Lin, F. Melzner, and P.-P. Hwang. 2013. CO2-driven seawater acidification differentially affects development and molecular plasticity along life history of fish (Oryzias latipes). Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 165:119–130, https://doi.org/10.1016/j.cbpa.2013.02.005.
US EPA (US Environmental Protection Agency. 2010. Summary of Coastal State and Territory Information Related to Ocean Acidification and the Clean Water Act 303(d) Program. 12 pp., http://water.epa.gov/lawsregs/lawsguidance/cwa/tmdl/upload/oa_state_info_nov2010.pdf.
US EPA. 2014. Overview of Greenhouse Gases. http://www.epa.gov/climatechange/ghgemissions/gases.html.
Waldbusser, G.G., B. Hales, C.J. Langdon, B.A. Haley, P. Schrader, E.L. Brunner, M.W. Gray, C.A. Miller, and I. Gimenez. 2015. Saturation-state sensitivity of marine bivalve larvae to ocean acidification. Nature Climate Change 5:273–280, https://doi.org/10.1038/nclimate2479.
Washington State Blue Ribbon Panel on Ocean Acidification. 2012. Ocean Acidification: From Knowledge to Action, Washington State’s Strategic Response. H. Adelsman and L.W. Binder, eds, Washington Department of Ecology, Olympia, Washington, Publication no. 12-01-015, 158 pp,. https://fortress.wa.gov/ecy/publications/publications/1201015.pdf
Welch, C. 2013. “A Washington Family Opens a Hatchery in Hawaii to Escape Lethal Waters.” Seattle Times, September 12, http://apps.seattletimes.com/reports/sea-change/2013/sep/11/oysters-hit-hard.
Xprize. 2014. A $2 Million Competition to Help Heal Our Oceans. http://oceanhealth.xprize.org.
Yates, K.K., C. Turley, B.M. Hopkinson, A.E. Todgham, J.N. Cross, H. Greening, P. Williamson, R. Van Hooidonk, D.D. Deheyn, and Z. Johnson. 2015. Transdisciplinary science: A path to understanding the interactions among ocean acidification, ecosystems, and society. Oceanography 28(2):212–225, https://doi.org/10.5670/oceanog.2015.43.
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