All Articles

Male and female Steller sea lions. Photo by Andrew Trites.

Steller Sea Lion (Eumetopias jubatus)

This article was originally published by the Washington Department of Fish and Wildlife as part of its annual report Threatened and Endangered Wildlife in Washington.

Photo courtesy University of Washington Center for Conservation Biology; conservationbiology.net

Potential effects of the interaction between marine mammals and tidal turbines – an engineering and biomechanical analysis

A paper presented at the European Wave and Tidal Energy Conference in Aalborg, Denmark describes the potential effects of a tidal turbine strike on an endangered Southern Resident Killer Whale in Puget Sound (SRKW). A tidal turbine is proposed for deployment in Admiralty Inlet in Island County. 

The Seaeye Falcon used by the Washington Department of Fish and Wildlife. Photo courtesy WDFW.

WDFW Remotely Operated Vehicle captures species and habitats on the sea floor

A camera on board a remotely operated vehicle scans the floor of Puget Sound capturing digital video of underwater marine life.  Selected clips of Plumose sea anemones, Pacific halibut, Pacific cod, Sea stars, and North Pacific spiny dogfish are now available for public viewing.

Reports: Steller Sea Lion status reports

This page includes documents and links related to the status of Steller Sea Lion in Washington state and the Salish Sea region. 

Presentations: 2013 study panel on ecosystem-based management of forage fish in Puget Sound

Download presentations from the Study Panel on Ecosystem-based Management of Forage Fish held August 25, 2013 at the University of Washington’s Friday Harbor Lab, San Juan Island.

 Figure 1 from Masson and Perry 2013 identifies the area of focus for the Strait of Georgia Ecosystem Research Initiative.

Report: Strait of Georgia ecosystem research initiative

A paper published in the August 2013 issue of Progress in Oceanography provides a summary and overview of the Strait of Georgia Ecosystem Research Initiative, an effort by Fisheries and Oceans Canada "to facilitate integrated research on the Strait of Georgia ecosystem."

Figure 1. Map of study area. Map depicts the four receiver arrays: Hood Canal Bridge (HCB), Mid Canal (MCL), Admiralty Inlet (ADM), and Strait of Juan de Fuca (JDF). Lower insets show single receiver locations for each year.

Paper: A floating bridge disrupts seaward migration and increases mortality of Steelhead smolts in Hood Canal, Washington State

A new study provides strong evidence of substantial migration interference and increased mortality risk associated with the Hood Canal Bridge for aquatic animals, and may partially explain low early marine survival rates observed in Hood Canal steelhead populations.

Eyes Over Puget Sound: Surface Conditions Report - September 11, 2013

Eyes Over Puget Sound: Surface Conditions Report - September 11, 2013

Sun and high air temperatures warrant en route ozone measurements for model validations. A furry visitor takes a rest on the float plane. See the spotlight on our pilot, Joe Leatherman. High river flows lead to striking fronts of turquoise-colored water carrying glacial flour in many northeastern regions. Satellite and aerial images show widespread phytoplankton blooms in Whidbey Basin, Hood Canal
The Seaeye Falcon used by the Washington Department of Fish and Wildlife. Photo courtesy WDFW.

Remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs) in Puget Sound

Remotely Operated Vehicles (ROVs) and Autonomous Underwater Vehicles (AUVs) are underwater robotic vehicles used for a variety of ocean surveys and operations. Both are used for deep-sea observation, mapping of underwater environments, and surveys of biodiversity and water quality trends. While ROVs are tethered to the user by a cord called the umbilical, which provides power as well as control

Eyes Over Puget Sound: Surface Conditions Report - August 21, 2013

Eyes Over Puget Sound: Surface Conditions Report - August 21, 2013

Warm air temperatures and increases in flows from glacier-fed rivers give rise to dramatic images in the San Juan Islands. Warm surface temperatures in South Sound foster abundant red-brown blooms in southern inlets. Similar blooms are happening in the inlets of the Kitsap Peninsula. Large drifting algal mats in Central Sound, Sinclair Inlet, Hood Canal and Padilla Bay will likely end up on nearby