Depth-integrated midwater pollock biomass in June, July, and August 2009 (B62) https://data.eol.ucar.edu/dataset/245.B62-016 Summary This data set contains measurements of midwater walleye pollock biomass during annual or biennial acoustic-trawl surveys conducted by the Midwater Assessment and Conservation Engineering (MACE) Program, Resource Assessment and Conservation Engineering (RACE) Division, of the National Oceanic and Atmospheric Administration - National Marine Fisheries Service (NOAA-NMFS) Alaska Fisheries Science Center (AFSC). The survey was conducted from 09 June 2009 through 07 August 2009 using the NOAA Ship Oscar Dyson. Midwater and bottom trawling was used to determine the species and length frequency composition of detected aggregations of fish. Pollock biomass (kg) was computed by applying length-specific target strength values and a length-weight relationship to 38 kHz backscatter data classified as pollock. The summary data set submitted here includes pollock biomass values summed between 16 m below the sea surface and 3 m above the seafloor within a rectangle with a north-south distance of 0.5 nmi (averaging distance along the survey transect) and an east-west distance of 20 nmi (interpolation distance 10 nmi to either side of the survey transect). Identifiers * Local archive identifier: 245.B62-016 * doi:10.5065/D6D50JZJ https://doi.org/10.5065/D6D50JZJ Versions 1.0 Citation Ressler, P. 2013. Depth-integrated midwater pollock biomass in June, July, and August 2009. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6D50JZJ Accessed 19 Apr 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 * BSIERP: Bering Sea Integrated Ecosystem Research Program https://data.eol.ucar.edu/project/BSIERP Additional information * Spatial Type: point * Frequency: continuous * Language: English ISO Topic Categories * biota * oceans Categories * Arctic * Biology * Biomass * Fish * Oceanography * Ship Based Platforms * Ships Instruments * Bottom Trawl * Midwater Trawls Sites * Bering Sea GCMD Science Keywords * EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH Documentation * B62-Midwater_pollock_2009_metadata.html [24 KiB] https://data.eol.ucar.edu/file/download/48CD017845A1/B62-Midwater_pollock_2009_metadata.html * pollock_biomass-2009.png [71 KiB] https://data.eol.ucar.edu/file/download/48CD01784553/pollock_biomass-2009.png Related links * info: BEST Data Policy https://www.eol.ucar.edu/content/data-policy-1 * homepage: BSIERP Data Archive https://www.eol.ucar.edu/field_projects/bsierp Temporal coverage * Begin datetime: 2009-06-09 00:00:00 * End datetime: 2009-08-07 23:59:00 Spatial coverage * Maximum (North) Latitude: 63.00 * Minimum (South) Latitude: 54.00 * Minimum (West) Longitude: 175.00 * Maximum (East) Longitude: -160.00 Primary contact information * pointOfContact: Patrick H. Ressler https://data.eol.ucar.edu/contact/show/875 Additional contact information * author: Patrick H. Ressler https://data.eol.ucar.edu/contact/show/875 * principalInvestigator: Anne B. Hollowed https://data.eol.ucar.edu/contact/show/1718 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/245.B62-016?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/245.B62-016?format=isotc211