A stellar experience: researching Steller sea lions in the Aleutian Islands

Spending a few weeks this summer with NOAA’s Marine Mammal Laboratory in Alaska’s Aleutian Islands, UW Marine Biology student Samantha-Lynn Martinez was up close and personal with Steller sea lions.

Samantha-Lynn Martinez
One of the Skiff aboard the R/V Tiĝlax̂ ((TEKH-lah – Unangam Tunuu or Aleut for eagle) deploying scientists to the shore in order to conduct resights and fly the UAS for aerial surveys of the animals. Permit No. NMFS ESA/MMPA 22289

Protected under the Endangered Species Act and Marine Mammal Protection Act, NOAA monitors two populations of Steller sea lions, and Samantha-Lynn’s focus was on the Western Population which are found throughout the Gulf of Alaska, the Aleutian Islands, and into Russia and Japan.

Samantha-Lynn Martinez
Samantha’s mentor at the NOAA Marine Mammal Lab, Molly McCormley, sets up the UAS for a test flight. Permit No. NMFS ESA/MMPA 22289

Putting her love for marine science and cameras to use, Samantha-Lynn joined the team who use different UAS (Unmanned Aircraft Systems) and imaging techniques to research abundance, movements and vital rates, and diet and foraging behavior of the sea lion population.

Samantha-Lynn Martinez
An adult male with visible wounds from sparring with other males around the rookery, It’s an intense life out there for these Stellers! Permit No. NMFS ESA/MMPA 22289

Research such as this plays a critical role in delivering new insights into Steller sea lions and their role in marine ecosystem while also informing management and conservation efforts.

Skyla Walcott
Perched atop a bluff, Samantha conducts a manual resight of the sea lions below, taking photos of their ID brands using her long-lens camera for later reference. Permit No. NMFS ESA/MMPA 22289

Her favorite experience? Handling sea lion pups, with some chosen for monitoring throughout their lifetime to provide information on mortality, birthing rates, health, and migration. Baby sea lions can be 50-100 pounds, with males growing to over 2,500 pounds once fully grown.

Wikipedia Commons
The location of the Aleutian Islands – Samantha-Lynn worked across all of the islands during her research.

All photos taken under NMFS ESA/MMPA Permit #22289


Click to read Samantha-Lynn’s tips and tricks for research opportunities