May 1st: ~16

Sea Lion of the Month

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Here you can see ~16 suckling from his mother in October 2012 when he was just over a year old.

The Sea Lion of the Month for May is one that was nominated by one of our Steller Watch team. This months sea lion is a male who we marked as ~16 at Gillon Point (Agattu Island) on June 23, 2011—this is when the first group of sea lions was marked in the western Aleutian Islands! When he was marked he weighed about 84 pounds (38 kg) and was almost 4 feet (113 cm) long and over 2.5 feet (79 cm) around his torso, just below his flippers. That is one big pup and ~16 will be 7 years old this summer!

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This sea lion is quite the adventurer judging by all of our sightings at six different locations! In fact, we have seen him at least once per year since he was marked. Mostly, it seems as though he was hanging around Agattu Island (both at Gillon Point, his birthplace and Cape Sabak). Then in 2013 he seemed to have spread his wings to nearby Alaid and Attu Islands. When he was in 2014 he began to range farther and we saw him at Buldir and Ulak Island in between visits back to Agattu and Alaid.

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~16 from an aerial perspective with the drone during the summer of 2016.

I expect that during the summer breeding season, now that he’s getting a bit older, we’ll see him around Gillon Point since he’ll be hoping to someday be big enough to defend a breeding territory. Kind of like in 2016 when we saw him with our drone!

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Fall of 2016, ~16 was spotted at Hasgox Point at Ulak Island.

Curious about other pinnipeds (seals and sea lions)? Check out our neighbors in the Pacific Islands to the south, the monk seals of the Northwest Hawaiian Islands. The Pacific Island Fisheries Science Center features their own Monk Seal of the Month!


We will share the story of one marked sea lion each month. Be sure to check our Sea Lion of the Month page on the 1st of every month to learn about our featured Steller sear lion. You may nominate a sea lion by submitting their full mark on the Sea Lion of the Month nomination forum. Thank you all for your nominations! 

Author: Steller Watch

Blog for Steller Watch, a Zooniverse.org Project https://www.zooniverse.org/projects/sweenkl/steller-watch