gov.noaa.nmfs.inport:25718 eng UTF8 dataset Alaska Fisheries Science Center 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 0700-1700 Pacific Time resourceProvider 2026-03-04T19:17:19 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AFSC/NMML: Video Analysis for Group Count and Calf Proximity of Beluga Whales in Cook Inlet, Alaska, 2005 - 2022 2005 creation publication NOAA/NMFS/EDM 25718 https://www.fisheries.noaa.gov/inport/item/25718 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Alaska Fisheries Science Center (206) 526-4000 (206) 526-4004 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA afsc.webmaster@noaa.gov https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center WWW:LINK-1.0-http--link Alaska Fisheries Science Center Website AKFSC Home Page information 0700-1700 Pacific Time originator https://www.fisheries.noaa.gov/resource/peer-reviewed-research/annual-calf-indices-beluga-whales-cook-inlet-alaska-2006-2012 WWW:LINK-1.0-http--link Citation URL Annual Calf Indices for Beluga Whales (Delphinapterus leucas) in Cook Inlet, Alaska 2006-2012 download https://repository.library.noaa.gov/view/noaa/22918 WWW:LINK-1.0-http--link Aerial surveys, distribution, abundance, and trend of belugas (Delphinapterus leucas) in Cook Inlet, Alaska, June 2018 The National Marine Fisheries Service (NMFS) has conducted aerial surveys to estimate abundance of the beluga population in Cook Inlet, Alaska, each June, July, or both from 1993 to 2012, after which biennial surveys began in 2014. The current document presents survey results and subsequent analyses yielding an abundance estimate and population trend based on data collected during June 2018. download tableDigital As a part of NMFS management of the endangered beluga whale population in Cook Inlet, Alaska, aerial surveys have been conducted during summer since 1993 to monitor their distribution and abundance. When beluga whale groups are found, observers make counts from the bubble windows while one observer records the group with a video camera. The video has been used to count the number of animals in the group to correct for missed animals in the observer counts. In 1996, a second video camera was added; the first video camera had a lens set at a wide angle to view the entire beluga group while the second video camera was zoomed to approximately 10x to magnify a subsample of individual whales in the group. The zoomed video has been used to examine color ratios of white adults relative to smaller and darker juveniles and calves and correct for those individuals missed due to their size or coloration. In 2005, a computer program was designed to digitize the process for analyzing the video, which had been conducted manually prior to that year. The program allows an analyst to digitally mark and number each individual whale image, track it across the screen, and measure relative whale size. The dataset described here includes the data from the years that video was analyzed using the computer program, 2005-2012, 2014, 2016, 2018, 2021, and 2022. Video analysis is conducted to estimate the size of beluga groups and provide a correction to the counts made by observers during aerial surveys of beluga whales in Cook Inlet, Alaska. Beluga groups in the video are counted with the aid of a computer program and zoomed video enables detection of missed whales due to small size or coloration. underDevelopment Wade, Paul paul.wade@noaa.gov pointOfContact Sims, Christy christy.sims@noaa.gov custodian asNeeded abundance aerial video analysis theme summer temporal Alaska Cook Inlet place DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Cetacean Assessment and Ecology Program project InPort otherRestrictions Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/NMML: Video Analysis for Group Count and Calf Proximity of Beluga Whales in Cook Inlet, Alaska, 2005 - 2022 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/25718. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. otherRestrictions Use Constraints: User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement of NOAA/NMFS/AFSC as the source from which these data were obtained in any publications and/or other representations of these data is suggested. otherRestrictions Distribution Liability: The user is responsible for the results of any application of this data for other than its intended purpose. NOAA denies liability if the data are misused. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 25718 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/25718.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US biota oceans Access -154.5 -149 59 61.5 Cook Inlet, Alaska | Currentness: Ground Condition 2005 2022 false eng false Data File 2005_2022 Video Analysis Individual Whales.csv 2018-11-30 publication CSV - Comma Separated Values (Text) NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact WWW:LINK-1.0-http--link NCEI Contact Information Information for contacts at NCEI. information distributor https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:0133936 WWW:LINK-1.0-http--link https://data.nodc.noaa.gov/cgi-bin/iso?id=gov.noaa.nodc:0133936 csv files download dataset Conceptual Consistency Not applicable. NA