Skip to main content

FILTER

December 16, 2024

">

Protecting the health of people who eat fish: The long battle over water quality standards

Culminating more than a decade of fierce debate, Washington state officials formally adopted new water-quality standards for toxic chemicals to protect the health of people who eat fish from our local waterways. On its face, this action appears inconsequential, considering that these numerical criteria were already in place, having been imposed two years ago by […]

December 16, 2024

A distributary channel created by The Nature Conservancy as a shortcut for juvenile Chinook as they move from freshwater to saltwater environments. Photo: Sylvia Kantor/PSI">

Ask a scientist: What is a distributary channel?

In a natural state, a river passing through a floodplain will have many side channels and tendrils that distribute the water, fanning it out across the delta. However, these channels are often lost when rivers are diverted to make room for farmland or other human development. In many cases, even after the dikes and levees […]

September 20, 2024

A Bigg's killer whale passes by the author's boat near Protection Island. Photo by Eric Wagner.">

Publish or perish the thought: Orcas, seals, and a curious scientist

In 2022, more than three million scientific papers were published in about thirty thousand journals. This represented something like a 9% increase over the year before, and a 47% increase since 2016. “Academic publishing has a problem,” wrote Mark A. Hanson, the biologist at the University of Exeter who compiled these figures. “The last few […]

August 1, 2024

Channel flowing through tidal marsh.">

Photo essay: Rebirth of an estuary

More than 90 percent of Puget Sound’s tidal wetlands have been lost to development. These rare estuaries, where tidal flows mix with outputs from local rivers, are critical to the early life stages of Chinook and other salmon. A restoration project near Port Susan Bay at the mouth of the Stillaguamish River is bringing back […]

June 26, 2024

">

Recreational boaters play an important role in protecting endangered killer whales, officials say

Noise and disturbance from boats can disrupt the normal hunting behaviors of killer whales, according to marine mammal experts. Now, with southern resident orcas facing extinction, every disruption becomes a concern, they say. Such is the thinking behind a new state law designed to better protect the endangered whales by further limiting how close recreational […]