[1] Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA
[2] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA
[3] Moss Landing Marine Labs, Moss Landing, CA 95039 USA
[4] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA
[5] Old Dominion Univ, Dept Earth & Ocean Sci, Norfolk, VA 23529 USA
[6] Biosphere, Oracle, AZ 85623 USA
[7] Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA
[8] Maine Maritime Inst, Ocean Studies Program, Castine, ME 04420 USA