This readme.txt file was generated on 20210523 by Kirill Shchapov ------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset Winter and summer zooplankton community and environmental parameters data of thirteen lakes located in Minnesota and Wisconsin 2. Author Information Principal Investigator Contact Information Name: Kirill Shchapov Institution: Large Lakes Observatory, University of Minnesota Duluth Address: 2205 E 5th St, Duluth, MN 55812 Email: shcha001@d.umn.edu ORCID: orcid.org/0000-0001-6823-0927 Co-investigator Contact Information Name: Ted Ozersky Institution: Large Lakes Observatory, University of Minnesota Duluth Address: 2205 E 5th St, Duluth, MN 55812 Email: tozersky@d.umn.edu ORCID: Co-investigator Contact Information Name: Paul Wilburn Institution: NASA Ames Research Center, Moffett Field, CA Address: Moffett Blvd, Mountain View, CA 94035 Email: willnotburn@gmail.com ORCID: Co-investigator Contact Information Name: Greg M. Silsbe Institution: University of Maryland Center for Environmental Science Horn Point Laboratory, MD Address: 2020 Horns Point Rd, Cambridge, MD 21613 Email: gsilsbe@umces.edu ORCID: 3. Date of data collection: 20150316 - 20180723 4. Geographic location of data collection (where was data collected?): Data were collected at 13 lakes (14 stations), mainly in Minnesota (12 stations) and Wisconsin (2 stations). See site locations file. 5. Information about funding sources that supported the collection of the data: MN SeaGrant award R/CE-08-16. NSF awards DEB-1136710 and DEB-1754250. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: CC-BY Attribution. Material may be reused with appropriate attribution. https://creativecommons.org/licenses/by/4.0/ 2. Links to publications that cite or use the data: Shchapov, K; Wilburn, P; Bramburger, A. J; Silsbe, G.M; Olmanson, L; Crawford, C. J; Litchman, E; Ozersky T. (forthcoming). Taxonomic and functional differences between winter and summer zooplankton communities in lakes across a trophic gradient. 3. Links to other publicly accessible locations of the data: none 4. Links/relationships to ancillary data sets: none 5. Was data derived from another source? If yes, list source(s): no 6. Recommended citation for the data: Shchapov, Kirill; Ozersky, Ted; Wilburn, Paul. (2021). Winter and summer zooplankton community and environmental parameters data of thirteen lakes located in Minnesota and Wisconsin. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/ja8f-q670. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: Zooplankton_abundance.csv Short description: Zooplankton species densities (individuals per liter) across all stations in winter (March 2015 and February-March 2018) and summer (July 2015 and 2018). B. Filename: Sites.csv Short description: Sampling site locations, depth, and color status. C. Filename: Environmental_parameters.csv Short description: Lakes nutrients data and seston stable isotope values (Carbon and Nitrogen). D. Filename: Light.csv Short description: Lakes light conditions data. E. Filename: Zooplankton_sia.csv Short description: Zooplankton carbon and nitrogen stable isotopes. F. Filename: YSI_profiles.csv Short description: YSI sonde profiles. 2. Relationship between files: The main data set is "Zooplankton_abundance.csv." Each lake's geographical locations, depth, and lake color status represented in "Sites.csv." Lake nutrients and seston stable isotopes data are in "Environmental_parameters.csv." Light conditions (attenuation coefficients), along with snow and ice conditions, are in the "Light.csv" file. Bulk zooplankton stable isotopes of nitrogen and carbon for each lake represented in "Zooplankton_sia.csv." Water column temperature, dissolved oxygen, pH, total dissolved solids, fluorescent dissolved organic matter, and conductivity profiles recorded by YSI EXO2 multiparameter sonde showed in "YSI_profiles.csv" file. 3. Additional related data collected that was not included in the current data package: no 4. Are there multiple versions of the dataset? no -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: See "Methods.pdf" file. 2. Methods for processing the data: See "Methods.pdf" file. 3. Instrument- or software-specific information needed to interpret the data: We used the R (version 3.6.2) software environment for statistical analyses of our data. 4. Standards and calibration information, if appropriate: none 5. Environmental/experimental conditions: none 6. Describe any quality-assurance procedures performed on the data: N/A 7. People involved with sample collection, processing, analysis and/or submission: Kirill Shchapov, Ted Ozersky, Paul Wilburn, Greg M. Silsbe, A. J. Bramburger, E. Litchman, L. Olmanson, C. J. Crawford. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "Zooplankton_abundance.csv" ----------------------------------------- 1. Number of variables: 26 2. Number of cases/rows: 29 3. Missing data codes: none 4. Variable List A. Name: Site Description: Indicates sampled lakes name. B. Name: Season Description: Season at which sites were sampled. Winer season - February 2015 and February and March 2018 sampling period. Summer season - July 2015 and 2018 sampling period. C. Name: Date Description: Sample collecting date for each station MM/DD/YYYY D. Name: Nauplii -> Limnocalanus_macrurus row (all found spesies names) Description: Number of zooplankton species (individuals per liter units) found in the sample for each lake. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "Sites.csv" ----------------------------------------- 1. Number of variables: 6 2. Number of cases/rows: 15 3. Missing data codes: none 4. Variable List A. Name: Site Description: Indicates each sampled lake name. B. Name: State Description: State in which lake/station is located. C. Name: Lat Description: Latitude of each sampling site. D. Name: Long Description: Longitude of each sampling site. E. Name: Lake_color Description: Color of the lake based on values of total phosphorous, dissolved organic carbon and chlorophyll a. F. Name: Site_depth_m Description: Depth of each sampling site. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "Environmental_parameters.csv" ----------------------------------------- 1. Number of variables: 9 2. Number of cases/rows: 94 3. Missing data codes: none 4. Variable List A. Name: Season Description: Season at which site was sampled. B. Name: Date Description: Sample collecting date for each station MM/DD/YYYY C. Name: Site Description: Indicates each sampled lake name. D. Name: Depth_m Description: Depth of each water sample. E. Name: Chl_a_ug_L Description: Depth specific water column chlorophyll a values in micrograms per liter. F. Name: TP_ug_L Description: Depth specific water column total phosphorous values in microgram per liter. G. Name: DOC_mg_L Description: Depth specific water column dissolved organic carbon values in milligram per liter. H. Name: seston_d13C Description: Depth specific seston delta carbon 13 stable isotope values. I. Name: seston_d15N Description: Depth specific seston delta nitrogen 15 stable isotope values. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "Light.csv" ----------------------------------------- 1. Number of variables: 7 2. Number of cases/rows: 15 3. Missing data codes: none 4. Variable List A. Name: Site Description: Indicates each sampled lake name. B. Name: Snow_d_m Description: Represent the depth of snow on the site in winter. C. Name: Ice_d_m Description: Station/lake ice thickness in winter. D. Name: Kd_snow Description: Snow attenuation coefficient. E. Name: Kd_ice Description: Ice attenuation coefficient. F. Name: Kd_water_winter Description: Water attenuation coefficient in winter. G. Name: Kd_water_summer Description: Water attenuation coefficient in summer. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "Zooplankton_sia.csv" ----------------------------------------- 1. Number of variables: 4 2. Number of cases/rows: 29 3. Missing data codes: none 4. Variable List A. Name: Site Description: Indicates each sampled lake name. B. Name: Season Description: Season at which site was sampled. C. Name: zoo_d13C Description: Bulk zooplankton delta carbon 13 stable isotope values. D. Name: zoo_d15N Description: Bulk zooplankton delta nitrogen 15 stable isotope values. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: "YSI_profiles.csv" ----------------------------------------- 1. Number of variables: 11 2. Number of cases/rows: 6438 3. Missing data codes: none 4. Variable List A. Name: Season Description: Season at which site was sampled. B. Name: Date Description: Sample collecting date for each station MM/DD/YYYY C. Name: Site Description: Indicates each sampled lake name. D. Name: Color Description: Color of the lake based on values of total phosphorous, dissolved organic carbon and chlorophyll a. E. Name: Depth_m Description: Depth of each measurements by YSI sonde. F. Name: Temp_C Description: Water column temperature profile in Celsius units. G. Name: Oxygen_mg_L Description: Water column oxygen profile in milligram per liter units. H. Name: fDOM_RFU Description: Water column fluorescent dissolved organic matter profile in relative fluorescence units. I. Name: Cond_µS_cm Description: Water column conductivity profile in microsiemens per centimeter. J. Name: TDS_mg_L Description: Water column total dissolved solids profile in milligram per liter units. K. Name: pH Description: Water column pH profile.