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Dataset Overview | National Centers for Environmental Information (NCEI)

Harbor porpoise (Phocoena phocoena) abundance survey conducted during visual observations from a vessel platform in the coastal waters of Southeast Alaska by the Alaska Fisheries Science Center Cetacean Assessment and Ecology Program from 2019-07-19 to 2019-08-12 (NCEI Accession 0277244)

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This dataset includes visual line transect survey data collected in the summer of 2019 in the waters of Southeast Alaska. The survey was designed for updating the abundance estimate of harbor porpoise within the inland waters of Southeast Alaska, although all marine mammal sightings were recorded.
  • Cite as: Goetz, Kim; Zerbini, Alexandre (2023). Harbor porpoise (Phocoena phocoena) abundance survey conducted during visual observations from a vessel platform in the coastal waters of Southeast Alaska by the Alaska Fisheries Science Center Cetacean Assessment and Ecology Program from 2019-07-19 to 2019-08-12 (NCEI Accession 0277244). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0277244. Accessed [date].
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2019-07-19 to 2019-08-12
Spatial Bounding Box Coordinates
West: -137.0365
East: -131.0163
South: 54.9805
North: 59.4418
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2023-04-05
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Submission Package ID: J3MC3T
Purpose Two demographically independent populations of harbor porpoise are currently recognized in Southeast Alaska. Bycatch of porpoises in the salmon drift gillnet fisheries is suspected to occur regularly. The purpose of this ship survey was to assess distribution of harbor porpoise in inland waters of SEAK, including areas never previously surveyed by the MML cruises, and to collect visual line transect survey data to compute a new estimate of abundance. Harbor porpoises are highly vulnerable to mortality in gillnets, therefore monitoring abundance and bycatch is important for evaluating the potential impact of fisheries on this species in Southeast Alaska.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Goetz, Kim; Zerbini, Alexandre (2023). Harbor porpoise (Phocoena phocoena) abundance survey conducted during visual observations from a vessel platform in the coastal waters of Southeast Alaska by the Alaska Fisheries Science Center Cetacean Assessment and Ecology Program from 2019-07-19 to 2019-08-12 (NCEI Accession 0277244). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0277244. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Points of Contact
Publishers
Acknowledgments
  • Related Funding Agency: US DOC; NOAA; National Marine Fisheries Service
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords Provider Keywords
  • Balaenoptera acutorostrata
  • Callorhinus ursinus
  • Enhydra lutris
  • Eumetopias jubatus
  • Megaptera novaeangliae
  • Mirounga angustirostris
  • Orcinus orca
  • Phoca vitulina
  • Phocoena phocoena
  • Phocoenoides dalli
  • unid. cetacean
  • unid. large whale
  • unid. porpoise
  • unid. seal
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords Provider Platform Names
  • R/V Zephyr
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names
  • Berners Bay
  • Chatham Strait
  • Chilkoot Inlet
  • Clarence Strait
  • Ernest Sound
  • Frederik Sound
  • Glacier Bay
  • Icy Strait
  • John Hopkins Inlet
  • Kelp Bay
  • Lynn Canal
  • Peril Strait
  • Rodman Bay
  • Southeast Alaska
  • Sumner Strait
  • Taiya Inlet
  • Tenakee Inlet
  • Wrangell Narrows
  • Zarembo Island
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Goetz, Kim; Zerbini, Alexandre (2023). Harbor porpoise (Phocoena phocoena) abundance survey conducted during visual observations from a vessel platform in the coastal waters of Southeast Alaska by the Alaska Fisheries Science Center Cetacean Assessment and Ecology Program from 2019-07-19 to 2019-08-12 (NCEI Accession 0277244). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0277244. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2023-04-05T13:52:12Z - NCEI Accession 0277244 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: LATITUDE (measured); Units: Decimal degrees; Observation Category: in situ; Sampling Instrument: GPS.
Acquisition Information (collection)
Instrument
  • Distance Sampling
  • GPS
  • line transect sampling
Last Modified: 2024-03-08T13:16:03Z
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