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    • Steller sea lion satellite telemetry data used to determine at-sea distribution in the western-central Aleutian Islands, 2000-2013

    Metadata Updated: April 1, 2024

    This dataset was used for an analysis of the at-sea distribution of Steller sea lions in the western-central Aleutian Islands, Alaska. This analysis was prepared to support the 2014 Section 7 Biological Opinion evaluating effects of commercial groundfish fisheries on Steller sea lion populations. In this study we combined all telemetry deployments during 2000-2013 in the central and western Aleutian Islands, including recent deployments on adult females, and conducted a spatial analysis to identify patterns of use relative to sea lion critical habitat and bathymetry in an area of intense fisheries management measures intended to reduce potential competition. The analytical approach modeled travel paths using the continuous-time correlated random walk model (CTCRW; Johnson et al. 2008, Ecology 89:1208-1215.). The CTCRW model output was used to show habitat use by individual to indicate intra-animal variation, then aggregated in a by age-class, season, criticalhabitat zone (20 nmi), or occurrence inside/outside of the 200 m isobath contour as possible factors. Some of the deployments included in this analysis have also been used in previous published studies (Call et al., 2007; Fadely et al., 2005; Lander et al., 2011a; Lander et al. 2011b; Lander et al., 2010; Lander et al., 2009; Loughlin et al., 2003; Pitcher et al., 2005; Rehberg and Burns, 2008).

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date February 29, 2024
    Metadata Created Date October 28, 2022
    Metadata Updated Date April 1, 2024
    Reference Date(s) May 29, 2019 (publication)
    Frequency Of Update notPlanned

    Metadata Source

    Harvested from NMFS AFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date October 28, 2022
    Metadata Updated Date April 1, 2024
    Reference Date(s) May 29, 2019 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:28214
    Access Constraints Cite As: Alaska Fisheries Science Center, [Date of Access]: Steller sea lion satellite telemetry data used to determine at-sea distribution in the western-central Aleutian Islands, 2000-2013 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/28214., Access Constraints: The data set is in the process of being archived with the NOAA National Centers for Environmental Information. Once the archival process is complete and verified, the data set will be publicly available, 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. While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Communication and collaboration with dataset authors is strongly encouraged. Acknowledge the Alaska Ecosystems Program, NOAA/NMFS/AFSC and the Alaska Department of Fish and Game as data sources, and cite the dataset as: Michelle Lander, Brian Fadely, Devin Johnson, Thomas Gelatt, Jeremy Sterling, Michael Rehberg, and Jennifer Burns. 2013. Steller sea lion (Eumetopias jubatus) satellite telemetry data used to determine at-sea distribution in the western-central Aleutian Islands, Alaska 2000-2013. Research Workspace. 10.24431/rw1k31z, version: 10.24431_rw1k31z_2019423183832., Distribution Liability: Applications or inferences derived from the data should be carefully considered for accuracy. While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
    Bbox East Long -165
    Bbox North Lat 55
    Bbox South Lat 48
    Bbox West Long 170
    Coupled Resource
    Frequency Of Update notPlanned
    Harvest Object Id ee8f504d-7307-44c5-9066-b85e01fdbba8
    Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
    Harvest Source Title NMFS AFSC
    Licence 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.
    Lineage See Lander et al. (2013) for description of data sources and processing. Data used in this analysis were also used in the following publications, which also provide data acquisition methods. Call, K. A., B. S. Fadely, A. Greig, and M. J. Rehberg. 2007. At-sea and on-shore cycles of juvenile Steller sea lions (Eumetopias jubatus) derived from satellite dive recorders: A comparison between declining and increasing populations. Deep Sea Res. (II Top. Stud. Oceanogr.) 54: 298-310. Fadely, B. S., B. W. Robson, J. T. Sterling, A. Greig, and K. A. Call. 2005. Immature Steller sea lion (Eumetopias jubatus) dive activity in relation to habitat features of the eastern Aleutian Islands. Fisheries Oceanography 14: 243-258. Lander, M. E., D. S. Johnson, J. T. Sterling, T. Gelatt, and B. S. Fadely. 2011a. Diving behaviors and movements of juvenile Steller sea lions (Eumetopias jubatus) captured in the central Aleutian Islands, April 2005. In: U. S. D. o. Commerce (ed.). NOAA Technical Memorandum. p 41. Lander, M. E., T. R. Loughlin, M. G. Logsdon, G. R. VanBlaricom, and B. S. Fadely. 2010. Foraging effort of juvenile Steller sea lions (Eumetopias jubatus) with respect to heterogeneity of sea surface temperature. Endangered Species Research 10: 145-158. Lander, M. E. et al. 2009. Regional differences in the spatial and temporal heterogeneity of oceanographic habitat used by Steller sea lions. Ecol Appl 19: 1645-1659. Lander, M.E., M.L. Logsdon, T.R. Loughlin, and G.R. VanBlaricom. 2011b. Spatial patterns and scaling behaviors of Steller sea lion (Eumetopias jubatus) distributions and their environment. Journal of Theoretical Biology 274:74-83. Doi:10.1016/j.jtbi.2011.01.015. Loughlin, T. R., J. T. Sterling, R. L. Merrick, J. L. Sease, and A. E. York. 2003. Diving behavior of immature Steller sea lions (Eumetopias jubatus). Fish B-Noaa 101: 566-582. Pitcher, K. W. et al. 2005. Ontogeny of dive performance in pup and juvenile Steller sea lions in Alaska. Can J Zool 83: 1214-1231. Rehberg, M. J., and J. M. Burns. 2008. Differences in diving and swimming behavior of pup and juvenile Steller sea lions (Eumetopias jubatus) in Alaska. Can. J. Zool./Rev. Can. Zool. 86:539-553.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[170.0, 48.0], [-165.0, 48.0], [-165.0, 55.0], [170.0, 55.0], [170.0, 48.0]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2000
    Temporal Extent End 2013

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