sta cast date time lat lon bot depth vol_filt Si_bio 5 8 20070811 2031 23.77 -159.203 24 5 4 0.006212495 5 8 20070811 2031 23.77 -159.203 21 25 4 0.039921032 5 8 20070811 2031 23.77 -159.203 18 45 4 0.013920591 5 8 20070811 2031 23.77 -159.203 15 75 4 0.008283327 5 8 20070811 2031 23.77 -159.203 13 100 4 0.007938188 5 8 20070811 2031 23.77 -159.203 11 125 4 0.019442808 5 8 20070811 2031 23.77 -159.203 9 150 10 0.005338144 5 8 20070811 2031 23.77 -159.203 6 175 10 0.003681478 5 8 20070811 2031 23.77 -159.203 3 200 10 0.008697493