Season Location Location_name Latitude Longitude DateTime_Local_EDT Sample_type_size Sample_size_id Sample_size Num_samples MeHg MeHg_stdev HgT HgT_stdev Depth Depth_description Diss_HgT Diss_MeHg Part_HgT Part_MeHg TSS DOC Chl_a ISO_DateTime_UTC Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0133 0.0088 1.3000 0.4074 4 Chlorophyll maximum 2.45 0.014 0.72 1.49 5.4 129 1.42 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0426 0.0034 0.1430 0.1221 10 Chlorophyll maximum 4.31 0.02 0.69 5.25 3.4 246 28.8 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Seston/Phytoplankton medium 5-20 microns 3 0.5854 0.5435 5.6461 1.9317 4 Chlorophyll maximum 2.45 0.014 0.72 1.49 5.4 129 1.42 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Seston/Phytoplankton medium 5-20 microns 3 0.0573 0.0209 0.3152 0.2379 10 Chlorophyll maximum 4.31 0.02 0.69 5.25 3.4 246 28.8 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Seston/Phytoplankton large 20-200 microns 3 0.6230 0.2769 23.6108 3.9454 4 Chlorophyll maximum 2.45 0.014 0.72 1.49 5.4 129 1.42 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Seston/Phytoplankton large 20-200 microns 3 1.0212 0.4391 8.2891 2.4384 10 Chlorophyll maximum 4.31 0.02 0.69 5.25 3.4 246 28.8 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Zooplankton small 0.2-0.5 millimeter 3 0.2716 0.0516 38.2565 8.6865 12 Below thermocline 2.35 0.009 0.2 0.84 11.3 151 1.99 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Zooplankton small 0.2-0.5 millimeter 3 2.2822 2.3548 14.3957 4.6246 15 Below thermocline 2.66 0.023 0.51 2.34 3.9 225 9.73 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Zooplankton medium 0.5-1 millimeter 3 0.7280 1.0495 21.8458 8.9577 12 Below thermocline 2.35 0.009 0.2 0.84 11.3 151 1.99 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Zooplankton medium 0.5-1 millimeter 3 4.9256 4.2326 12.2989 4.3232 15 Below thermocline 2.66 0.023 0.51 2.34 3.9 225 9.73 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Zooplankton large 1-2 millimeter 3 7.3904 4.1817 24.3567 6.2691 12 Below thermocline 2.35 0.009 0.2 0.84 11.3 151 1.99 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Zooplankton large 1-2 millimeter 3 0.7301 0.1784 1.9434 0.1542 15 Below thermocline 2.66 0.023 0.51 2.34 3.9 225 9.73 2014-05-20T15:00:00Z Spring ELIS Eastern Long Island Sound 41.263 -72.067 2014-05-22 09:30:00 Zooplankton X-large >2 millimeter 3 6.7320 1.8997 22.6756 4.9695 12 Below thermocline 2.35 0.009 0.2 0.84 11.3 151 1.99 2014-05-22T13:30:00Z Spring WLIS Western Long Island Sound 40.958 -73.56 2014-05-20 11:00:00 Zooplankton X-large >2 millimeter nd nd nd nd nd 15 Below thermocline 2.66 0.023 0.51 2.34 3.9 225 9.73 2014-05-20T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0333 0.0150 0.3142 0.0337 4 Chlorophyll maximum 2.68 0.002 0.78 13.57 1 172 10.32 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0047 0.0015 0.0840 0.0415 10 Chlorophyll maximum 1.56 0.016 2.47 10.99 1.7 161 11.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Seston/Phytoplankton medium 5-20 microns 3 0.2775 0.1833 3.8024 4.1615 4 Chlorophyll maximum 2.68 0.002 0.78 13.57 1 172 10.32 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Seston/Phytoplankton medium 5-20 microns 3 0.0184 0.0124 0.3868 0.1864 10 Chlorophyll maximum 1.56 0.016 2.47 10.99 1.7 161 11.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Seston/Phytoplankton large 20-200 microns nd nd nd nd nd 4 Chlorophyll maximum 2.68 0.002 0.78 13.57 1 172 10.32 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Seston/Phytoplankton large 20-200 microns 3 0.1888 0.0145 3.1590 0.5392 10 Chlorophyll maximum 1.56 0.016 2.47 10.99 1.7 161 11.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Zooplankton small 0.2-0.5 millimeter 3 2.1089 2.7384 35.1504 9.9337 12 Below thermocline 1.75 0.02 0.63 12.78 1.4 174 11.4 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Zooplankton small 0.2-0.5 millimeter 3 2.4563 1.6484 17.9808 4.3367 15 Below thermocline 1.68 0.009 1.2 12.9 1.2 199 32.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Zooplankton medium 0.5-1 millimeter 3 6.8394 5.3194 22.8700 6.4281 12 Below thermocline 1.75 0.02 0.63 12.78 1.4 174 11.4 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Zooplankton medium 0.5-1 millimeter 3 5.5290 4.6259 12.3784 4.4228 15 Below thermocline 1.68 0.009 1.2 12.9 1.2 199 32.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Zooplankton large 1-2 millimeter 3 2.7890 0.7112 19.3247 4.0036 12 Below thermocline 1.75 0.02 0.63 12.78 1.4 174 11.4 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Zooplankton large 1-2 millimeter 3 2.7427 0.1631 7.5164 3.7012 15 Below thermocline 1.68 0.009 1.2 12.9 1.2 199 32.6 2014-08-02T15:00:00Z Summer ELIS Eastern Long Island Sound 41.263 -72.067 2014-08-05 09:30:00 Zooplankton X-large >2 millimeter nd nd nd nd nd 12 Below thermocline 1.75 0.02 0.63 12.78 1.4 174 11.4 2014-08-05T13:30:00Z Summer WLIS Western Long Island Sound 40.958 -73.56 2014-08-02 11:00:00 Zooplankton X-large >2 millimeter 3 0.0159 0.0099 0.2119 0.0635 15 Below thermocline 1.68 0.009 1.2 12.9 1.2 199 32.6 2014-08-02T15:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Seston/Phytoplankton small 0.2-5 microns 2 0.0056 nd 0.6850 nd 7 Chlorophyll maximum 1.77 0.016 0.29 1.19 18.4 200 1.75 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0202 0.0014 0.0563 0.0477 4 Chlorophyll maximum 1.22 0.015 0.24 1.06 8.6 222 3.94 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0742 0.0025 2.1640 1.1780 10 Chlorophyll maximum 1.03 <0.009 0.01 0.49 6.4 80 0.52 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Seston/Phytoplankton small 0.2-5 microns 2 0.0148 nd 1.0090 nd 10 Chlorophyll maximum 0.75 0.013 0.02 0.37 6 211 0.08 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Seston/Phytoplankton small 0.2-5 microns 3 0.0145 0.0090 0.9620 0.7436 10 Chlorophyll maximum 1.89 0.022 0.54 2.52 9.7 209 3.48 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Seston/Phytoplankton medium 5-20 microns 2 0.0699 nd 0.9110 nd 7 Chlorophyll maximum 1.77 0.016 0.29 1.19 18.4 200 1.75 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Seston/Phytoplankton medium 5-20 microns 3 0.0745 0.0344 0.5262 0.1652 4 Chlorophyll maximum 1.22 0.015 0.24 1.06 8.6 222 3.94 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Seston/Phytoplankton medium 5-20 microns 3 0.4860 0.5490 1.4710 0.1399 10 Chlorophyll maximum 1.03 <0.009 0.01 0.49 6.4 80 0.52 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Seston/Phytoplankton medium 5-20 microns 2 0.5880 nd 12.0700 nd 10 Chlorophyll maximum 0.75 0.013 0.02 0.37 6 211 0.08 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Seston/Phytoplankton medium 5-20 microns 3 0.1106 0.0505 1.3692 0.1868 10 Chlorophyll maximum 1.89 0.022 0.54 2.52 9.7 209 3.48 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Seston/Phytoplankton large 20-200 microns 2 0.1530 nd 3.1420 nd 7 Chlorophyll maximum 1.77 0.016 0.29 1.19 18.4 200 1.75 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Seston/Phytoplankton large 20-200 microns 2 0.8206 nd 15.3941 nd 4 Chlorophyll maximum 1.22 0.015 0.24 1.06 8.6 222 3.94 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Seston/Phytoplankton large 20-200 microns nd nd nd nd nd 10 Chlorophyll maximum 1.03 <0.009 0.01 0.49 6.4 80 0.52 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Seston/Phytoplankton large 20-200 microns nd nd nd nd nd 10 Chlorophyll maximum 0.75 0.013 0.02 0.37 6 211 0.08 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Seston/Phytoplankton large 20-200 microns 2 0.4003 nd 4.3736 nd 10 Chlorophyll maximum 1.89 0.022 0.54 2.52 9.7 209 3.48 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Zooplankton small 0.2-0.5 millimeter nd nd nd nd nd nd Below thermocline nd nd nd nd nd nd nd 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Zooplankton small 0.2-0.5 millimeter 3 0.8937 1.3288 31.2941 17.7419 12 Below thermocline 1.49 0.009 0.14 0.86 11.4 200 nd 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Zooplankton small 0.2-0.5 millimeter 3 0.3218 0.1787 26.3200 5.4975 40 Below thermocline 0.67 0.01 0.01 0.21 9 178 nd 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Zooplankton small 0.2-0.5 millimeter 3 0.6293 0.6721 38.1673 10.9446 50 Below thermocline 1.07 0.031 0.01 0.26 8.3 210 nd 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Zooplankton small 0.2-0.5 millimeter 3 0.1587 0.0124 22.6571 2.7600 15 Below thermocline 1.72 0.033 0.58 2.27 11.6 212 nd 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Zooplankton medium 0.5-1 millimeter 3 9.6190 2.3535 92.4849 37.1627 nd Below thermocline nd nd nd nd nd nd nd 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Zooplankton medium 0.5-1 millimeter 3 3.4338 3.5019 76.6971 38.1318 12 Below thermocline 1.49 0.009 0.14 0.86 11.4 200 nd 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Zooplankton medium 0.5-1 millimeter 3 3.7950 3.1904 46.4123 7.2426 40 Below thermocline 0.67 0.01 0.01 0.21 9 178 nd 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Zooplankton medium 0.5-1 millimeter 3 2.0027 2.4375 21.6547 7.5417 50 Below thermocline 1.07 0.031 0.01 0.26 8.3 210 nd 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Zooplankton medium 0.5-1 millimeter 3 3.4714 3.6460 51.5301 35.1985 15 Below thermocline 1.72 0.033 0.58 2.27 11.6 212 nd 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Zooplankton large 1-2 millimeter nd nd nd nd nd nd Below thermocline nd nd nd nd nd nd nd 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Zooplankton large 1-2 millimeter 3 4.3545 0.2236 36.8632 13.2916 12 Below thermocline 1.49 0.009 0.14 0.86 11.4 200 nd 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Zooplankton large 1-2 millimeter 3 6.9065 2.0575 39.3024 9.7236 40 Below thermocline 0.67 0.01 0.01 0.21 9 178 nd 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Zooplankton large 1-2 millimeter 3 1.5287 1.4352 29.9795 23.6666 50 Below thermocline 1.07 0.031 0.01 0.26 8.3 210 nd 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Zooplankton large 1-2 millimeter 3 1.5585 0.9640 25.0345 10.6289 15 Below thermocline 1.72 0.033 0.58 2.27 11.6 212 nd 2014-09-09T22:00:00Z Fall CLIS Central Long Island Sound 41.019 -72.661 2014-09-09 12:30:00 Zooplankton X-large >2 millimeter nd nd nd nd nd nd Below thermocline nd nd nd nd nd nd nd 2014-09-09T16:30:00Z Fall ELIS Eastern Long Island Sound 41.263 -72.067 2014-09-11 08:30:00 Zooplankton X-large >2 millimeter 3 2.9040 1.0377 9.9457 2.5534 12 Below thermocline 1.49 0.009 0.14 0.86 11.4 200 nd 2014-09-11T12:30:00Z Fall Mid-Shelf Mid-Shelf off Long Island Sound 40.72 -71.18 2014-09-10 10:00:00 Zooplankton X-large >2 millimeter 3 2.0535 0.5563 20.8303 11.0863 40 Below thermocline 0.67 0.01 0.01 0.21 9 178 nd 2014-09-10T14:00:00Z Fall Shelf Break Shelf Break off Long Island Sound 40.228 -70.956 2014-09-10 14:00:00 Zooplankton X-large >2 millimeter 3 2.0679 2.0426 12.4366 1.9486 50 Below thermocline 1.07 0.031 0.01 0.26 8.3 210 nd 2014-09-10T18:00:00Z Fall WLIS Western Long Island Sound 40.958 -73.56 2014-09-09 18:00:00 Zooplankton X-large >2 millimeter 3 2.6856 0.0858 16.2696 8.9006 15 Below thermocline 1.72 0.033 0.58 2.27 11.6 212 nd 2014-09-09T22:00:00Z