Point Defiance Zoo & Aquarium Leads Effort to Reintroduce Declining Sunflower Sea Star
Scientists at Point Defiance Zoo & Aquarium in Washington are engaged in a conservation effort to reintroduce the sunflower sea star, a marine predator crucial for the Puget Sound ecosystem, which has significantly declined in local waters.

Seattle Tacoma, WA, August 3, 2026 —
Scientists at the Point Defiance Zoo & Aquarium in Washington are undertaking a significant conservation initiative aimed at reintroducing the sunflower sea star (Pycnopodia helianthoides) back into local waters. This marine predator plays a critical role in the health and balance of the Puget Sound ecosystem.
The sunflower sea star population has experienced a substantial decline in recent years, raising concerns among marine biologists and conservationists. These large, multi-armed invertebrates are vital predators that help maintain the biodiversity of kelp forests and rocky reefs by controlling populations of other species, such as sea urchins and mussels. Their absence has led to observable shifts in the marine environment.
The conservation effort involves breeding and raising sunflower sea stars at the zoo with the goal of eventual release into the wild. This process requires careful scientific monitoring and a deep understanding of the species’ life cycle and habitat needs. The project highlights the challenges and importance of ecological restoration in marine environments.
Further details regarding the specific methods of breeding, the timeline for reintroduction, and the exact locations for potential release were not provided. The success of this initiative could have a profound positive impact on the Puget Sound, a complex and valuable marine ecosystem.
Story summarized from the original created by Lauren.Donovan@fox.com (Lauren Donovan) on www.fox13seattle.com, see more information here.