1. School of the Earth, Ocean, and Environment, University of South Carolina, Columbia, South Carolina 29208, USA
2. School of Oceanography, University of Washington, Seattle, Washington 98105, USA
3. Cooperative Institute of Marine Resources Studies, Oregon State University, and Pacific Marine Environmental Laboratory (PMEL), National Oceanic and Atmospheric Administration (NOAA), Newport, Oregon 97365, USA
4. Department of Earth Sciences, ETH Zürich, 8092 Zurich, Switzerland
5. PMEL, Office of Oceanic and Atmospheric Research (OAR), NOAA, Seattle, Washington 98115, USA
6. School of Biological Sciences, University of Utah, Salt Lake City, Utah 84132, USA
7. University of Washington/Joint Institute for the Study of the Atmosphere and Ocean (JISAO) and PMEL, NOAA, Seattle, Washington 98115, USA