Puget Sound's orcas are shifting: here's which pods actually stick around.

## Puget Sound's Orca Shift: A Decades-Long Data Story A new analysis of decades-long orca sighting data reveals a striking shift in Puget Sound’s resident whale population.

4 min readUW News
Puget Sound's orcas are shifting: here's which pods actually stick around.
Southern Resident killer whales in the Salish Sea. Photo taken under NOAA Fisheries Permit #781-1824 Photo: Candice Emmons/NOAA Northwest Fisheries Science Center
From UW News

Data spanning nearly half a century shows that endangered southern resident killer whales are spending less time in inland waters, whereas their larger cousins, Bigg’s killer whales, are increasingly present in Puget Sound.

The National Oceanic and Atmospheric Administration listed southern resident killer whales as endangered in 2005 after rapid population decline in the late 1990s. Now, just 74 remain, split into three pods: J, K and L. Bigg’s — sometimes referred to as transients — are more common, but difficult to count because they travel in smaller groups over wider ranges.

Read the original at UW News

Briefing

Source
UW News
Published
June 24, 2026