An Alaska Steller sea lion, whose birth was featured in the second season of NatGeo WILD’s Alaska Animal Rescue, died unexpectedly on January 23, 2023 at the Alaska SeaLife Center (ASLC) in Seward.
According to the ASLC, the two and a half-year-old sea lion named Mist passed away after experiencing seizure-like tremors while interacting with three other seas lions in a group setting.
The incident occurred while Mist and three other Steller sea lions were socializing in a new group setting. To mimic natural and social behaviors in the wild, Steller sea lion groupings change regularly at the ASLC, and staff always monitor animals in new situations closely. The introductions went well, and the animal care staff noted play and normal social behaviors throughout the morning. Mist’s seizure-like tremors began suddenly and seemed unprompted. Due to the close monitoring protocol that day, an ASLC Mammalogist noticed the tremors as soon as they began and responded immediately. The other three Steller sea lions were shifted to another habitat so veterinary and animal care staff could tend to Mist safely. Though these staff arrived within minutes, Mist had unfortunately already become unresponsive.
Mist was born on June 26, 2020, to ASLC Steller sea lions Mara and Pilot. Mist was Mara’s first successful pup and the fifth successful Steller sea lion birth in the history of ASLC.
Dr. Carrie Goertz, Director of Animal Health at the ASLC, stated,” “Waiting for Mist to be born is my most impactful memory of my time with her. It dominated my life in the early days of the COVID-19 pandemic. When she was born, it was such a joyous event in a crazy world and a crazy time.”
The Alaska SeaLife Center is one of only three aquariums in North America that house Steller sea lions. Every Steller sea lion contributes to the understanding and knowledge base of their important species, making the loss of this two-and-a-half-year-old impactful for the entire population.
About Steller Sea Lions
Steller sea lions are the largest member of the eared seal family. The species ranges across the northern Pacific Ocean, from Japan through the Aleutian Islands and southeast Alaska to northern California. Divided into eastern and western regions, the western population is currently listed as endangered, while the eastern population was delisted in 2013 following notable recovery and significant conservation efforts.
Details and photo provided by Alaska SeaLife Center