TN249-10 Microzooplankton Grazing and Phytoplankton Growth Rates https://data.eol.ucar.edu/dataset/102.167 Summary During the R/V Thompson long spring Bering Sea Ecosystem Study-Bering Sea Integrated Ecosystem Research Program (BEST-BSIERP) cruise in May-June 2010, 18 dilution experiments were carried out. We compared the rates of algal growth in whole water and in 10 % whole water diluted with particle-free filtered water over a 24 hour day- night cycle at light levels of 15% to 30% of surface incident light. 11 experiments yielded significant microzooplankton grazing rates. Phytoplankton growth rates varied from slightly negative, probably due to a senescent diatom bloom, to a maximum daily rate of 0.39 d-1 where initial chl-a concentration was low, only 0.5 micro-g l-1. Microzooplankton grazing impact ranged from negligible to more that 3 times daily phytoplankton growth. On average, microzooplankton grazing mortality was about 63% of daily phytoplankton growth. The average grazing impact in 2010 was higher than that found in the spring during the 2008 and 2009 cruises when much of the cruise track was in heavy sea ice. Because less time was spent in the ice and the season was more advanced, the experiment incubation temperatures, from 0.4 to 5 degrees C, were somewhat higher during the 2010 cruise compared to the previous 2 spring cruises. BEST-BSIERP together are the Bering Sea project. Identifiers * Local archive identifier: 102.167 * doi:10.5065/D6Q52MMF https://doi.org/10.5065/D6Q52MMF Versions 1.0 Citation Sherr, E., Sherr, B., Sherr, E. 2010. TN249-10 Microzooplankton Grazing and Phytoplankton Growth Rates. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6Q52MMF Accessed 29 Mar 2024. Additional citation styles can be generated by entering the DOI at CrossCite (https://citation.crosscite.org/). Acknowledgement In addition to the citation reference and any other acknowledgements, please acknowledge NCAR/EOL in your publications with text such as: Data provided by NCAR/EOL under the sponsorship of the National Science Foundation. https://data.eol.ucar.edu/ Related projects * BEST: Bering Ecosystem Study https://data.eol.ucar.edu/project/BEST Additional information * Spatial Type: point * Frequency: daily * Language: English ISO Topic Categories * biota * oceans Categories * Abundance * Arctic * Biology * Biomass * Ecology * Plankton Platforms * R/V Thomas G. Thompson * Ships Instruments * Conductivity, Temperature, Depth - CTD * Fluorometers * Niskin bottles Events * TN-249 GCMD Science Keywords * EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > FOOD-WEB DYNAMICS * EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON Documentation * Sherr_2010_dilution_assay_metadata.pdf [26 KiB] https://data.eol.ucar.edu/file/download/41CB9E966AA/Sherr_2010_dilution_assay_metadata.pdf Related links * homepage: BEST Project Homepage https://www.eol.ucar.edu/field_projects/best * info: BEST Catalog https://catalog.eol.ucar.edu/best/ * info: BEST Data Policy https://www.eol.ucar.edu/content/data-policy-1 Temporal coverage * Begin datetime: 2010-05-11 06:00:00 * End datetime: 2010-06-10 10:00:00 Spatial coverage * Maximum (North) Latitude: 62.00 * Minimum (South) Latitude: 56.00 * Minimum (West) Longitude: -178.50 * Maximum (East) Longitude: -163.50 Primary contact information * pointOfContact: Evelyn B. Sherr https://data.eol.ucar.edu/contact/show/118 Additional contact information * author: Evelyn B. Sherr https://data.eol.ucar.edu/contact/show/118 * author: Barry F. Sherr https://data.eol.ucar.edu/contact/show/1112 * originator: Evelyn B. Sherr https://data.eol.ucar.edu/contact/show/118 * principalInvestigator: Evelyn B. Sherr https://data.eol.ucar.edu/contact/show/118 * principalInvestigator: Barry F. Sherr https://data.eol.ucar.edu/contact/show/1112 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/102.167?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/102.167?format=isotc211