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Dataset Overview | National Centers for Environmental Information (NCEI)

Characterizing pinniped use of offshore oil and gas platforms as haulouts and foraging areas in waters off southern California from 2013-01-01 to 2015-01-31 (NCEI Accession 0138984)

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California sea lions (Zalophus californianus) and Pacific harbor seals (Phoca vitulina) use offshore oil and gas platforms as resting and foraging areas. Both species are protected by the Marine Mammal Protection Act (1972). The Bureau of Ocean Energy Management (BOEM) is required to collect information from platforms being used by California sea lions and harbor seals (or other pinniped species) with the goal of meeting environmental review and permitting requirements associated with the eventual decommissioning of offshore platforms. Decommissioning requirements are under the jurisdiction of BOEMs sister agency, the Bureau of Safety and Environmental Enforcement (BSEE). However, BOEM provides environmental studies and environmental review support for BSEE actions. To accomplish this goal, BOEM entered an inter-agency agreement with the National Marine Mammal Laboratories' California Current Ecosystem Program (CCEP; AFSC/NOAA) in 2012. Specifically, BOEM funded CCEP to conduct a study (from January 2012 to January 2015) to characterize and quantify California sea lion and Pacific harbor seal use of the platforms, including; abundance, seasonal use patterns, and age and sex class composition of animals on the platforms. Inter- (i.e., spatial) and intra- (i.e., temporal) platform comparisons were examined.
  • Cite as: Orr, Anthony J.; Harris, Jeffrey D.; Hirschberger, Kari A.; Laake, Jeffrey L.; DeLong, Robert L.; Sanders, Gregory (2015). Characterizing pinniped use of offshore oil and gas platforms as haulouts and foraging areas in waters off southern California from 2013-01-01 to 2015-01-31 (NCEI Accession 0138984). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0138984. Accessed [date].
gov.noaa.nodc:0138984
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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 2013-01-01 to 2015-01-31
Spatial Bounding Box Coordinates
West: -121
East: -118
South: 33
North: 35
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2015-12-15
  • revision: 2016-01-12
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: R1B85T
Purpose Quantify the abundance of California sea lions and Pacific harbor seals using oil and gas platforms and to assess their age/sex class and seasonal use patterns at each platform during a two-year (January 2013 - January 2015) period. Obtain information for the preparation of Marine Mammal Protection Act permit applications and National Environmental Policy Act environmental impact assessments for ongoing platform activities and the eventual decommissioning of platforms.
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: Orr, Anthony J.; Harris, Jeffrey D.; Hirschberger, Kari A.; Laake, Jeffrey L.; DeLong, Robert L.; Sanders, Gregory (2015). Characterizing pinniped use of offshore oil and gas platforms as haulouts and foraging areas in waters off southern California from 2013-01-01 to 2015-01-31 (NCEI Accession 0138984). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0138984. Accessed [date].
Cited Authors
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Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
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
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Orr, Anthony J.; Harris, Jeffrey D.; Hirschberger, Kari A.; Laake, Jeffrey L.; DeLong, Robert L.; Sanders, Gregory (2015). Characterizing pinniped use of offshore oil and gas platforms as haulouts and foraging areas in waters off southern California from 2013-01-01 to 2015-01-31 (NCEI Accession 0138984). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0138984. 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
  • 2015-12-15T15:06:07Z - NCEI Accession 0138984 v1.1 was published.
  • 2016-01-12T17:16:59Z - NCEI Accession 0138984 was revised and v2.2 was published.
    Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Data Type: ANIMALS - INDIVIDUAL (measured); Units: Individual; Observation Type: Other; Sampling Instrument: Computer software; Sampling and Analyzing Method: A subsampling protocol was developed. The time when all the cameras on a given platform were operational was split into 2-week blocks. From each block, 2 days were selected at random. Within each day, two images were analyzed from the following blocks of time: earliest hour – 0659h, 0700h – 1259h, 1300h – 1859h, 1900 – latest hour. Total counts were calculated by summing the number of individuals (identified to a specific age/sex class, if possible) counted from images taken from all cameras for each particular time/date.; Data Quality Information: To ensure that any edits made in identifications or counts were done correctly, the identifier would open the image again and view the new markers. Images were viewed at least twice to make sure all animals were accounted for. A subset of images were viewed by at least two identifiers to determine if they were consistent with their counts and identifications. Additionally, a subset of images were re-analyzed after all images for a platform were completed in order to determine if the identifier was consistent with their counts and identifications of images analyzed at the beginning through the end of the counting process.
Acquisition Information (collection)
Instrument
  • camera
Last Modified: 2023-03-15T01:29:21Z
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