While there are often opportunities to go deep in our respective fields, breakthroughs can come from unexpected connections and interdisciplinary discussions. The Salish Sea Science Roundtable is a virtual monthly seminar inspired by just that. Each month we’ll connect to share emerging science that’s shaping Salish Sea recovery and sustainable development, reconnect with colleagues in different fields, and enjoy thought-provoking discussions. We hope you’ll join us virtually on the second Tuesday of each month from 12:30-1:30 pm PT.
Do you have a topic you want to learn more about or are you interested in sharing some of your organization’s new science? Email Marielle (marlars@uw.edu).
Tuesday, Feb. 10 | 12:30 – 1:30 pm PT on Zoom
Co-hosted with the Tulalip Beaver Project
Twelve years ago, the Tulalip Beaver Project started with a bold idea: maybe we can partner with beavers—nature’s original engineers—to help restore salmon habitat. Today, the project is known across the country for showing how people and wildlife can work together to heal our watersheds. In this presentation, we’ll look at why beavers matter, how the Tulalip Beaver Project safely captures and relocates them, and the lessons we’ve learned from years of on‑the‑ground restoration and outreach.

Signed in 2021, the Burrard Inlet Environmental Science and Stewardship Agreement (BIESSA) is a Nation-to-Nation Reconciliation agreement between Canada and səlilwətaɬ (Tsleil-Waututh Nation; TWN) aiming to strengthen coordination and collaboration of science and stewardship activities in Burrard Inlet, Vancouver. Biologists Steve Healy and Ann-Marie Norris (Fisheries and Oceans Canada; DFO) as well Lead Natural Resource Technician Haley Crozier (TWN) shared some background on Tsleil-Waututh stewardship in the region, and highlighted several ongoing collaborative projects between DFO and TWN, including: salmon stewardship in the Indian River Watershed, clam beach research, and a Dungeness crab telemetry pilot project

The University of Washington’s Thermal History of Regulated Rivers (THORR) tool transforms NASA’s Landsat satellite imagery into current and historical river temperature insights. George Darkwah shared how advanced data-driven techniques enable accessible mapping of water temperatures across remote streams—vital for salmon survival. This open-source platform can provide managers with actionable information to support dam operations, habitat restoration, and climate adaptation planning. For example, the Columbia River Inter-Tribal Fish Commission is applying these insights to improve riverine water management towards fish abundance, illustrating THORR’s broader potential to guide sustainable water and fisheries decisions.

Climate change is leading to increasingly warmer oceans that are also more acidic, less oxygenated, and with lower salinity (among other changes). The resultant impacts on marine organisms will depend on the rate, level, and variability of change of individual stressors and how effectively the animals can deal with these shifts. Moreover, multiple stressors are likely to interact and potentially change how organisms respond, in comparison to single stressors presented in isolation. Chris Pearce (DFO) presented recent research conducted in DFO’s Pacific Region to examine multi-stressor impacts on a variety of marine invertebrates (Pacific oysters, pteropods, Pacific razor clams) of ecological, commercial, and indigenous importance in British Columbia and Washington State. He also presented work on various technologies they have been examining to help commercial shellfish growers mitigate these impacts.

Dr. Markus Brinkmann explored advanced methods in ecotoxicology, specifically high-resolution mass spectrometry (HRMS) and integrated chemical and biological analyses. He demonstrated how HRMS technology helps scientists characterize the diversity of chemical contaminants and their environmental transformation products affecting aquatic organisms. By analyzing biological samples, we can identify which compounds are bioavailable, as well as their biotransformation products, enhancing our understanding of their impacts on aquatic life. Integrated approaches that combine these assessments with molecular analyses, such as transcriptomics, provide deeper insights into contaminant dynamics and their ecological effects, ultimately aiding environmental risk assessment and management.

Dr. P. Sean McDonald (University of Washington) and Dr. Thomas Therriault (Fisheries and Oceans Canada) bring nearly 50 years of combined expertise in the science and management of invasive European green crab (EGC). Their presentation delved into the challenges posed by EGC in the transboundary waters of the Salish Sea, highlighting ongoing science into the species’ detrimental effects on native species and habitats, as well as threats to cultured and wild shellfish resources. Contextualized by a brief summary of EGC larval connectivity by Dr. Lily Engel (Pacific Northwest National Laboratory), they discussed coordinated strategies for early detection, rapid response, and ongoing measures aimed at mitigating the ecological and economic impacts of this invasive species in the shared waters of the Salish Sea.

Dr. Sarah Henkel is a benthic ecologist at the Hatfield Marine Science Center and Associate Director of the Pacific Marine Energy Center at OSU. She presented on the history and current status of wave, tidal, and wind energy projects on the Pacific coast and provided an overview of studies she has conducted to assess potential effects of offshore renewable energy on benthic habitats and species including seafloor surveys, tracking fish responses to ship noise, and animal responses to EMF in the lab.

The Tufted Puffin, Marbled Murrelet and Rhinoceros Auklet are all in the same family (Alcidae), but show different seasonal dependencies on the Salish Sea. In addition, their nesting strategies differ and their diets overlap only somewhat. Scott Pearson from Washington Department of Fish & Wildlife used data from at-sea surveys and nesting colony-based studies to compare and contrast these three alcids, showing how their differences manifest in diverging population trends, and providing an overview of their status in the region with insights into potential population threats.

How have ocean conditions, lower trophic level dynamics, and species interactions shaped the Strait of Georgia’s marine ecosystem over the past 40 years? What long-term changes can we anticipate in the future? Greig Oldford with Fisheries & Oceans Canada highlighted insights generated via integration of the Ecospace ecosystem model with a custom NEMO-based oceanographic hindcast. This ‘End-to-End’ model is being used to evaluate hypotheses scoped by the Canada-US Salish Sea Marine Survival Project (SSMSP) related to synergistic effects of predation, prey availability, habitat, competition, and other factors on the productivity of Pacific salmon. The potential for decadal-scale ecosystem forecasting will also be highlighted.
2025
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