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A December 2017 article in the journal PLOS One reports that incidents and violations among whale watching vessels have increased in the Central Salish Sea since 1998.

A 2015 paper in the journal Limnology and Oceanography presents new data on ocean acidification in the Salish Sea.

The Port Gamble S’Klallam reservation covers 1,340 acres. Over half of the nearly 2,000 enrolled tribal members live on the reservation. Port Gamble Bay, the tribe’s ancestral home, has proven to be more resilient than other nearby water bodies, but it still carries a load of toxins from the Pope & Talbot sawmill, which operated on the bank for over 150 years.Port Gamble S'Klallam...

Puget Sound herring reproduction is not limited by the amount of suitable spawning vegetation, according to a November 2014 paper in the journal Marine Ecology. The article points to terrestrial or marine variables as likely determinants of egg loss.

A variety of animals, including invertebrates, fish, mammals, and birds, consume the suspension-feeders, filter-feeders, grazers, and detritivores that serve as a link between the primary producers and detrital pathways and the upper levels of the food web.

A 2017 paper in the journal Aquatic Mammals reports that harbor seals in the Salish Sea are less concerned about predators when they become habituated to humans. 

A 2025 article in the journal Environmental Management analyzes the use of structured decision making (SDM) with four different watershed groups to understand the governance factors that facilitated the use of SDM as a decision support tool.

This thesis discusses the Glaucous-winged Gull (Larus glaucescens) as an indicator of ecosystem change in the Salish Sea region.

Rivers are flowing higher than normal since 2020. Winter weather has been warmer and wetter. In marine waters, temperatures have become too cool for Northern Pacific anchovies to tolerate in North Sound. From patches of jellyfish and snow geese, to sediment and early blooms, there is more happening in the winter than you might expect. Puget Sound has many species worth showcasing such as the heart crab – a shy critter that wears its heart on its shell.

More then 700 miles of Puget Sound shoreline is considered to be "armored," and as much as four miles of new armoring is added each year.