sta cast date time lat lon bot depth vol_filt Si_bio 19 11 20070817 0005 23.218 -159.177 21 25 4 0.007641913 19 11 20070817 0005 23.218 -159.177 17 45 4 0.005208977 19 11 20070817 0005 23.218 -159.177 14 75 4 0.004522765 19 11 20070817 0005 23.218 -159.177 12 100 4 0.002963191 19 11 20070817 0005 23.218 -159.177 10 125 4 0.007766679 19 11 20070817 0005 23.218 -159.177 7 150 10 0.01369306 19 11 20070817 0005 23.218 -159.177 5 175 10 0.008702423 19 11 20070817 0005 23.218 -159.177 4 200 10 0.009825317