1. Monterey Bay Aquarium Research Institute Moss Landing CA USA
2. School of Natural SciencesCalifornia State University at Monterey Bay Marina CA USA
3. JISAOUniversity of Washington and Pacific Environmental Laboratory Seattle WA USA
4. Department of Earth SciencesMemorial University of Newfoundland St. John's Newfoundland Canada
5. Now at Department of Magmatic and Hydrothermal Systems, GEOMARHelmholtz Centre for Ocean Research Kiel Germany
6. Department of MicrobiologyUniversity of Massachusetts Amherst MA USA
7. School of OceanographyUniversity of Washington Seattle WA USA