NMFS Office of Science & Technology   |   Marine Ecosystems Division   <-- back to previous page -- Sampling Metadata   <-  Drift Station Alpha (Data Summary)   <-  COPEPOD: The Global Plankton Database     SAMPLING METADATA Sampling and Processing Summary Specific sampling methods and/or documentation were not available for this data set. Sampling Gear Net Mesh Tow Method ( depth range ) # of Tow % of all Tows Ring Net 230 um vertical down-to ~100 m 1 3.2 % Ring Net 230 um vertical down-to ~250 m 1 3.2 % Ring Net 230 um vertical down-to ~500 m 2 6.5 % Ring Net 230 um vertical down-to ~1000 m 3 9.7 % Ring Net 230 um vertical to-below 1000 m 2 6.5 % Ring Net 550 um vertical down-to ~50 m 2 6.5 % Ring Net 550 um vertical down-to ~100 m 1 3.2 % Ring Net 550 um vertical down-to ~250 m 1 3.2 % Ring Net 550 um vertical down-to ~500 m 4 12.9 % Ring Net 550 um vertical down-to ~1000 m 9 29.0 % Ring Net 550 um vertical to-below 1000 m 5 16.1 %     TOTAL TOWS 31   Sub-Collection:   Drift Station Alpha COPEPOD https://www.st.nmfs.noaa.gov/copepod Web v14.1   [ 2017-Sep ]