Western CEDAR. Western Washington University. Jonathan Reum United States. National Marine Fisheries Service,

Transcription

1 Western Washington University Western CEDAR Salish Sea Ecosystem Conference 2014 Salish Sea Ecosystem Conference (Seattle, Wash.) May 1st, 8:30 AM - 10:00 AM Carbonate chemistry covariation with temperature and oxygen in the Salish Sea and California Current Ecosystems: implications for the design of ocean acidification experiments Jonathan Reum United States. National Marine Fisheries Service, jonreum@gmail.com Simone Alin Pacific Marine Environmental Laboratory (U.S.) Nina Bednarsek Wiley Evans United States. National Oceanic and Atmospheric Administration Richard Feely Pacific Marine Environmental Laboratory (U.S.) See next page for additional authors Follow this and additional works at: Part of the Terrestrial and Aquatic Ecology Commons Reum, Jonathan; Alin, Simone; Bednarsek, Nina; Evans, Wiley; Feely, Richard; Hales, Burke; Mathis, Jeremy; McElhany, Paul; Jan Newton, Dr.; and Sabine, Christopher, "Carbonate chemistry covariation with temperature and oxygen in the Salish Sea and California Current Ecosystems: implications for the design of ocean acidification experiments" (2014). Salish Sea Ecosystem Conference This Event is brought to you for free and open access by the Conferences and Events at Western CEDAR. It has been accepted for inclusion in Salish Sea Ecosystem Conference by an authorized administrator of Western CEDAR. For more information, please contact westerncedar@wwu.edu.

2 Speaker Jonathan Reum, Simone Alin, Nina Bednarsek, Wiley Evans, Richard Feely, Burke Hales, Jeremy Mathis, Paul McElhany, Dr. Jan Newton, and Christopher Sabine This event is available at Western CEDAR:

3 Carbonate chemistry covariation with temperature and oxygen in the Salish Sea: implications for the design of ocean acidification experiments Jonathan Reum 1 *, Simone Alin 2, Richard Feely 2, Nina Bednarsek 2, Wiley Evans 2, Burke Hales 3, Paul McElhany 1, Jan Newton 4, Chris Sabine 2 *Jonathan.Reum@noaa.gov 1 Northwest Fisheries Science Center, NOAA 2 Pacific Marine Environmental Laboratory, NOAA 3 College of Oceanic and Atmospheric Sciences, OSU 4 Applied Physics Laboratory, University of Washington

4 Ocean acidification experiments Scenario IS92a pco 2 (μatm) 400 Preind. Today Year

5 Ocean acidification experiments body growth 280?? PreInd Today Future

6 1500 pco 2 (μatm) OA treatment? control Temperature ( C)

7 How does pco 2 change with temperature and oxygen? What does covariation mean for OA experimental design and interpretation?

8 pco 2 (μatm) Seattle pco 2 (μatm) Temperature ( C) Reum et al PLOS ONE

9 pco 2 (μatm) Oxygen (μmol kg -1 ) Seattle pco 2 (μatm) Oxygen (μmol kg -1 ) Reum et al PLOS ONE

10 Vertical distribution Depth (m) Summer Winter Summer

11 Vertical distribution Depth (m) Nighttime Winter Summer Daytime Winter Summer

12 Mooring OA experiments Puget Sound discrete West coast discrete Surface underway pco 2 data Reum et al. In Review

13 Negative response Positive response Non-significant Control 2000 pco 2 (μatm) Reum et al. In Review Temperature ( C)

14 1500 Present-day 1000 OA treatment pco 2 (μatm) control Temperature ( C)

15 Equilibration with air CO 2 at formation DIC Air 800 μatm DIC formation = ΔDIC ΔDIC + Upwelling DIC Respiration + formation DIC formation + DIC Respiration Puget Sound

16 pco 2 (μatm) Present-day ΔDIC = 90 umol kg Temperature ( C) 200

17 Direct Effects CO 2 Upwelled/deep Low Oxygen Low Temp High pco 2 Oceanic/shallow High Oxygen High Temp Low pco 2 Carbonate chemistry niche

18 Acknowledgements Funding sources: -National Research Council Fellowship -NOAA Ocean Acidification Program and NOAA Pacific -Marine Environmental Laboratory -University of Washington, including the PRISM program Washington State Department of Ecology Field and laboratory support: The officers and crew of the R/V Thomas G. Thompson, Cynthia Peacock, Geoff Lebon, Cathy Cosca, Corinne Bassin, Jill Coyle, Dana Greeley, Julia Bos, Kathy Krogslund, Amanda Gray, Megan Black, Sylvia Musielewicz, and Jennifer Nomura for their shipboard, laboratory, and graphics support of this research effort.