TABLE 1. Numbers of samples for each source and ocean basin.

Plankton
Sediment traps
Surface sediments
Total
N Pacific
732
1080
794
2606
S Pacific
234
318
334
886
N Atlantic
335
116
676
1127
S Atlantic
382
43
634
1059
Indian
141
50
505
696
Arctic
30
101
214
345
Total
1854
1708
3157
6719