Bowhead Whale Abundance [George] https://data.eol.ucar.edu/dataset/255.010 Summary This dataset is comprised of data from ice-based visual census studies to estimate the abundance of the Bering-Chukchi-Beaufort Seas (BCBS) stock of bowhead whales (Balaena mysticetus). These counts take place off Point Barrow, Alaska, in the spring, as the whales migrate from the Bering to the Beaufort Sea. They were conducted annually from 1978 to 1988 and again in 1993 and 2001. Adverse environmental conditions led to counts inadequate to support abundance estimates in 1979 and 1984. The data provide an estimate of the number of whales that passed within the 4km visual range of the observation perch from which the whales are counted. This dataset is part of the Pacific Marine Arctic Regional Synthesis (PacMARS) Project. Identifiers * Local archive identifier: 255.010 * doi:10.5065/D66T0JPN https://doi.org/10.5065/D66T0JPN Versions 1.0 Citation George, J., et al. 2013. Bowhead Whale Abundance. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D66T0JPN 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 * PacMARS: Pacific Marine Arctic Regional Synthesis https://data.eol.ucar.edu/project/PacMARS Additional information * Frequency: criteria * Progress: completed * Language: English ISO Topic Categories * geoscientificInformation * oceans Categories * Abundance * Arctic * Biology * Mammals * Oceanography Platforms * Field Surveys Instruments * Visual Observations Sites * Arctic Ocean GCMD Science Keywords * EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > MAMMALS > CETACEANS > BALEEN WHALES * EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAMICS Documentation * readme.bh.visual_census.pdf [172 KiB] https://data.eol.ucar.edu/file/download/4282F1484999/readme.bh.visual_census.pdf Related links * homepage: PacMARS Home Page https://data.eol.ucar.edu/dataset/list?project=364 * info: PacMARS Data Policy https://data.eol.ucar.edu/arctic_projects/pacmars/docs/data_policy-pacmars.pdf * info: North Slope Borough Bowhead Whale Studies http://www.north-slope.org/departments/wildlife-management/studies-and-research-projects/bowhead-whales Temporal coverage * Begin datetime: 1978-04-01 00:00:00 * End datetime: 2001-06-14 23:59:59 Spatial coverage * Maximum (North) Latitude: 71.38889 * Minimum (South) Latitude: 71.38889 * Minimum (West) Longitude: -156.47917 * Maximum (East) Longitude: -156.47917 Primary contact information * pointOfContact: John C. "Craig" George https://data.eol.ucar.edu/contact/show/861 Additional contact information * author: John C. "Craig" George https://data.eol.ucar.edu/contact/show/861 * author: David Rugh https://data.eol.ucar.edu/contact/show/1738 * author: Robert Suydam https://data.eol.ucar.edu/contact/show/1739 * author: Judy Zeh https://data.eol.ucar.edu/contact/show/1737 * principalInvestigator: John C. "Craig" George https://data.eol.ucar.edu/contact/show/861 Alternate metadata formats * DataCite: https://data.eol.ucar.edu/dataset/255.010?format=datacite * ISO/TC 211: https://data.eol.ucar.edu/dataset/255.010?format=isotc211