Sightings of marked Alaska Steller sea lions throughout their range, 1987-2014

This dataset contains information regarding the sighting and capture of Steller sea lions marked in Alaska from 1987 to 2014. Marks are seen and documented in a variety of ways; remote cameras, dedicated vessel- and land-based surveys, recaptures of Steller sea lions, aerial survey photographs, strandings, and opportunistic sightings sent in from the public.

The primary purpose of this dataset is to estimate vital rates, survival and fecundity of permanently marked Steller sea lions.

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Cite dataset as: Alaska Ecosystems Program. 2019. Sightings of marked Alaska Steller sea lions throughout their range, 1987-2014. Alaska Fisheries Science Center NOAA Fisheries Open Data Portal: https://noaa-fisheries-afsc.data.socrata.com/Species/Sightings-of-marked-Alaska-Steller-sea-lions-throu/dt2n-7ve8

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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.

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Communication and collaboration with data set authors is strongly encouraged prior to use.

Via the distribution URL.

User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy.

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 data set authors is strongly encouraged. Contact the point of contact for the appropriate data citation to use, and acknowledge the Alaska Ecosystem Program of the NOAA/NMFS/AFSC as the source from which these data were obtained in any publications and/or other representations of these data.

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Metadata are subject to revision at any time and information within the metadata record should not be cited without author consent. 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.

Sighting data are recorded on paper forms in the field, then entered into Microsoft Excel files then transferred, or entered directly into Microsoft Access. A MS Access query generates the comma-delimited file.

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Observational records are compared among observers and against current and previously-collected images to ensure accuracy. Sightings since the year 2000 have been edit checked to original field notes. That data is then compared between observers, if more than one, and compared to any photos that may have been taken at the time of sighting.

IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption

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