NMFS Office of Science & Technology   |   Marine Ecosystems Division   <-- back to previous page -- Sampling Metadata   <-  Continuous Plankton Record (CPR) - North Atlantic sample data. (Data Summary)   <-  COPEPOD: The Global Plankton Database     SAMPLING METADATA Sampling and Processing Summary Notice of Subsetted Data: The data available here is only a five-year (1995-1999) subset of the significantly larger Continuous Plankton Recorder (CPR) Survey database that runs 60+ years.   Individuals looking for the full data sets should the CPR Survey directly with all inquiries ( https://cprsurvey.org ). Comparison of CPR data with other COPEPOD data sets: The CPR is a small mouth-opening, high tow speed, surface-only sampling device.   Zooplankton and phytoplankton together are captured using a 270 um mesh net.   Each sample represents plankton collected over a 10 nautical mile horizontal section of water. Data users are urged to take caution when quantitatively comparing CPR-collected plankton abundances with other data sets that used larger mouth nets and/or non-surface tows. Sampling Gear Net Mesh Tow Method ( depth range ) # of Tow % of all Tows Continuous Plankton Recorder (CPR) MBA/SAHFOS 270 um horizontal "surface" 9245 100.0 %     TOTAL TOWS 9245   Sub-Collection:   Continuous Plankton Record (CPR) - North Atlantic sample data. COPEPOD https://www.st.nmfs.noaa.gov/copepod Web v14.1   [ 2019-May ]