Depth-dependent photodegradation of marine dissolved organic matter

1 Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA, USA, 2 Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA, 3 Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA, 4 Bermuda Institute of Ocean Sciences, St. George’s, Bermuda, 5 Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA, USA, 6 Ecological Chemistry, Alfred-Wegener-Institut Helmholtz Zentrum für Polarund Meeresforschung, Bremerhaven, Germany, 7 Maritime Technology, University of Applied Sciences, Bremerhaven, Germany, 8 Helmholtz Zentrum München, Analytical BioGeoChemistry, Neuherberg, Germany, 9 Technische Universität München, Analytical Food Chemistry, Freising-Weihenstephan, Germany, 10 Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, USA