Regional and Overall Trends and Trend Analysis of Eastern Distinct Population Segment of Steller Sea Lion
April 10, 2012
Memo from the Alaska Fisheries Science Center to the Alaska Regional Office on Steller sea lion population trends.
Steller sea lion stock trends and trend analysis for preparation of the Draft Status Review of the Eastern Distinct Population Segment (eDPS) of Steller Sea Lion (Draft Status Review). The information was originally sent to the NOAA Fisheries Alaska Region at different times in response to specific queries. This single memo supersedes those previous documents and provides a single citable source for the Draft Status Review.
This memo has four parts:
- A) an accounting of published material summarizing Steller sea lion counts by region
- B) a memo sent to Dana Seagars on 17 February, 2012 that calculated the trends by region
- C) a revised model created in early March using a more conventional method of trend analysis
- D) an estimate for pup counts at two sites in the eDPS in 2002