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Articles 151 - 180 of 827

Full-Text Articles in Physical Sciences and Mathematics

Scaling Shoreline Restoration To Improve Nearshore Marine Habitat For Salmon And Forage Fishes, Emily Bishop Apr 2022

Scaling Shoreline Restoration To Improve Nearshore Marine Habitat For Salmon And Forage Fishes, Emily Bishop

Salish Sea Ecosystem Conference

Shoreline restoration is a widespread activity with a multitude of ambitions. Goals often include protection of people and property from storms and sea level rise, improvement of habitat for fisheries and protected species, and mitigation of the effects of climate change through investments in blue carbon. However, few studies have directly assessed the impacts of restoration actions on specific ecological or economic endpoints, nor characterized the significance of the surrounding landscape to restoration outcomes. We conducted monthly surveys from April through September in 2018-2021 at six restoration sites in Puget Sound to evaluate associations between shoreline restoration and offshore subtidal …

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Density-Dependent Habitat Limitations For Juvenile Chinook Salmon In Large River Deltas Of Puget Sound, Dr. Correigh Greene Apr 2022

Density-Dependent Habitat Limitations For Juvenile Chinook Salmon In Large River Deltas Of Puget Sound, Dr. Correigh Greene

Salish Sea Ecosystem Conference

Efforts by people to restrain tidal inundation to promote agriculture and development has led to large amounts of tidal wetland habitat loss in large river deltas across the Pacific coast. Concomitant declines in these populations have raised questions about the extent to which juvenile Chinook salmon compete for limited estuary habitat and how estuary restoration will help recover populations. To examine the potential for habitat limitation, we used a cross-system approach to combine outmigrant and population density data in four large river deltas of Puget Sound. By adjusting outmigration abundance to natural-origin outmigrants/ha of delta channel, we were able to …

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Improving The Use Of Science In Collaborative Ecosystem Restoration: Government And Non-Government Knowledge Brokers, Tom Koontz Apr 2022

Improving The Use Of Science In Collaborative Ecosystem Restoration: Government And Non-Government Knowledge Brokers, Tom Koontz

Salish Sea Ecosystem Conference

To address complex socio-ecological system challenges, policy makers and managers throughout the Salish Sea, and around the world, increasingly seek collaborative approaches. At the same time, the climate emergency and other environmental threats have drawn greater attention to science and its role in responding to these threats. Scientists are working to not only expand knowledge, but to put it into practice. What are the barriers and opportunities for bridging science and collaboration? In this comparative case study we examine how scientific research is valued, acquired, evaluated, and applied in collaborative ecosystem restoration. We gather data from three different types of …

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Salish Sea Marine Survival Project: Putting Findings Into Action For The Future Of Salmon, Jacques White Apr 2022

Salish Sea Marine Survival Project: Putting Findings Into Action For The Future Of Salmon, Jacques White

Salish Sea Ecosystem Conference

The Salish Sea Marine Survival Project (SSMSP, https://marinesurvivalproject.com) published its final Synthesis Report in 2021, summarizing key findings and recommendations from over 5 years of research into the causes of poor marine survival for Salish Sea Chinook, coho, and steelhead salmon. The project, led by Long Live the Kings in the U.S. and the Pacific Salmon Foundation in Canada, united more than sixty regional and international partners to enable one of the most comprehensive assessments of the Salish Sea ecosystem. It offers a critically important model for large-scale scientific collaborations addressing systemic, transboundary questions. This presentation summarizes the SSMSP’s approach …

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One Island, One Earth: Exploring Island Ecological Footprints And Fingerprints, Michelle Thompson, Adam Huggins Apr 2022

One Island, One Earth: Exploring Island Ecological Footprints And Fingerprints, Michelle Thompson, Adam Huggins

Salish Sea Ecosystem Conference

Island communities have frequently been portrayed as passive victims of the climate crisis, but are also often considered to be models for the development of social capital and community resilience. As such, small island communities - like those in the Salish Sea - present unique challenges and opportunities in terms of evaluating community preparedness and adaptation to the climate crisis. The ecological footprint concept has long been employed in urban centers throughout our region as a powerful tool for understanding land and resource use in the context of climate change, but until recently has not been applied to small island …

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Downscaling Future Climate Models For Local Flood And Socioeconomic Exposure Across The Salish Sea With The Coastal Storm Modeling System (Cosmos), Dr. Patrick Barnard Apr 2022

Downscaling Future Climate Models For Local Flood And Socioeconomic Exposure Across The Salish Sea With The Coastal Storm Modeling System (Cosmos), Dr. Patrick Barnard

Salish Sea Ecosystem Conference

The U.S. Geological Survey Coastal Storm Modeling System (CoSMoS) is being developed for the Salish Sea to evaluate flood hazards at a scale of 1 m to support coastal planning into the next century. CoSMoS computes extreme water levels and flooding accounting for projected sea level rise and climate change effects on river floods and storms. Modeled tides and storm surge show a mean absolute error of 10 cm across NOAA and USGS tide gages over the hindcast period 2018-2019. Model forcings deconstructed over a 1985-2015 hindcast indicate that storm surge inside Puget Sound is driven primarily by atmospheric pressure …

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Deriving Phytoplankton Community Composition In The Salish Sea Using Chemtax And Olci Sentinel 3 Data, Vishnu P. Suseelan Apr 2022

Deriving Phytoplankton Community Composition In The Salish Sea Using Chemtax And Olci Sentinel 3 Data, Vishnu P. Suseelan

Salish Sea Ecosystem Conference

Seasonal and spatial variability in phytoplankton community composition in the Salish Sea was investigated between the spring and summer of 2018 and 2019. Surface water for the measurements for HPLC pigments and coloured dissolved organic matter (CDOM), total suspended matter (TSM) concentration were collected from (~2 m depth) using a water pumping system installed on the ferry Queen of Alberni. At the same time, an above-water radiometer was installed on the bow of the ferry to measure the water-leaving radiance. The surface bio-geochemical variables such as TChla, CDOM, and TSM concentration has demonstrated a remarkable spatial and seasonal variability. In …

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To Adopt Blockchain Technology Or Not: Is The Decision-Making Process Immune To Covid-19?, Rebecca Jauch Apr 2022

To Adopt Blockchain Technology Or Not: Is The Decision-Making Process Immune To Covid-19?, Rebecca Jauch

Thinking Matters Symposium

Blockchain technology has been shown to have advantages in improving the effectiveness of supply chain management. We use the Technology-Organization-Environment (TOE) framework with Threat-Rigidity Theory (TRT) to determine the factors that lead U.S. businesses to adopt blockchain technology, the factors that act as barriers to adoption, and the disruptive effect of COVID-19 on the rate of blockchain adoption

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Preparing For Sea Level Rise In King County: The Sea Level Rise Risk Area, Lara Whitely Binder Apr 2022

Preparing For Sea Level Rise In King County: The Sea Level Rise Risk Area, Lara Whitely Binder

Salish Sea Ecosystem Conference

How do we get ahead of what’s coming? is a common question and motivator for action on sea level rise. In 2020, King County answered this question with adoption of a Sea Level Rise Risk Area for Vashon and Maury Island. The new risk area, adopted into County flood codes as part of the County's Comprehensive Plan mid-point update, extends base flood elevation construction requirements and other provisions into a new zone that sits landward of the existing coastal high hazard zone. This presentation will provide a brief overview of the new risk area and its associated requirements, discuss the …

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Multi-Jurisdictional Relationship-Building For Nature-Based Flood Management In Boundary Bay, Harley Chappell, Deborah Carlson, Matt Osler, Erin Clement, Eric Balke, Gillian Fuss Apr 2022

Multi-Jurisdictional Relationship-Building For Nature-Based Flood Management In Boundary Bay, Harley Chappell, Deborah Carlson, Matt Osler, Erin Clement, Eric Balke, Gillian Fuss

Salish Sea Ecosystem Conference

Purpose This session will bring together representatives from governments, agencies and organizations (Indigenous, federal, provincial, local) who are collaborating to implement "living dike" pilot projects in Boundary Bay to address sea level rise and protect coastal ecosystems and communities. Presenters will describe innovations and challenges around nature-based flood management regarding planning, design and working together. Material overview Sea level rise and other climate change impacts are increasing coastal flood risks for communities located on the Fraser River delta. Communities are protected by dikes and other hard infrastructure, but these hard structures can contribute significantly to coastal squeeze. There is growing …

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Building With Nature: Blue-Green Systems For Solving Urban Growth And Climate Challenges In Canada, Eva Li Apr 2022

Building With Nature: Blue-Green Systems For Solving Urban Growth And Climate Challenges In Canada, Eva Li

Salish Sea Ecosystem Conference

Urban development has significantly disrupted the City of Vancouver’s (the City) natural water cycle. Building on multi-year strategic planning, the City is undertaking a major shift in the way infrastructure services are planned, designed and delivered by developing interconnected blue-green systems (BGSs) networks. BGSs, park like networks and corridors, aim to manage water and improve water quality; promote connectivity, active transportation, and recreational; and increase access to nature and biodiversity. The “blue” in blue-green systems refers to integrated water management and green rainwater infrastructure (GRI) services. This function includes nature-based constructed practices like rain gardens, wetlands or other forms of …

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Prioritizing Sea Level Rise Exposure And Habitat Sensitivity Across Puget Sound, Avery Maverick Apr 2022

Prioritizing Sea Level Rise Exposure And Habitat Sensitivity Across Puget Sound, Avery Maverick

Salish Sea Ecosystem Conference

Sea level rise (SLR) will cause Puget Sound shores to change in the magnitude and frequency of coastal flooding, with cascading effects of accelerated erosion, habitat loss, and other impacts at the local scale. Prior investigations of the extent of coastal flooding and historical patterns of erosion have been conducted across the region in a variety of temporal and spatial extents, but primarily at the shoreline reach scales. The recent release of updated sea level rise (SLR) projections and high resolution topobathymetric data for the Puget Sound region lends itself to a new quantitative analysis of SLR-related hazards at a …

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Recovering Yelloweye Rockfish And Bocaccio In The Salish Sea: A Collaborative, Long-Term, Multi-Pronged Approach, Dr. Dayv Lowry Apr 2022

Recovering Yelloweye Rockfish And Bocaccio In The Salish Sea: A Collaborative, Long-Term, Multi-Pronged Approach, Dr. Dayv Lowry

Salish Sea Ecosystem Conference

Recovering yelloweye rockfish and bocaccio in the Salish Sea: a collaborative, long-term, multi-pronged approach Yelloweye rockfish and bocaccio occupying the Salish Sea have been listed under the U.S. Federal Endangered Species Act (ESA) since 2010, yelloweye as Threatened and bocaccio as Endangered. In 2017, NOAA Fisheries completed a recovery plan for both species, outlining critical data needs and collaborative policy actions to further recovery. In 2020, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) assessed the inside waters (i.e., Salish Sea) population of yelloweye as Threatened, a change from the Special Concern status conferred in 2008. Here, …

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Leveraging Community Science To Address Significant Data, Management, And Policy Gaps For Beach Spawning Forage Fish Across The Salish Sea, Virginia East, Jennifer Sutherst, Jacqueline Huard, Ian Bruce, Kyle Armstrong, Alanna Vivani, Graham Nicholas, Jacklyn Barrs Apr 2022

Leveraging Community Science To Address Significant Data, Management, And Policy Gaps For Beach Spawning Forage Fish Across The Salish Sea, Virginia East, Jennifer Sutherst, Jacqueline Huard, Ian Bruce, Kyle Armstrong, Alanna Vivani, Graham Nicholas, Jacklyn Barrs

Salish Sea Ecosystem Conference

Community science is an important tool to address conservation challenges. WWF-Canada has facilitated the development of a ‘Forage Fish Monitoring Network’ within British Columbia’s Salish Sea. This network brings together community scientists, academics, professionals, and First Nation communities in mapping, monitoring, and identifying important spawning habitat for Pacific sand lance (PSL) and surf smelt (SS). PSL and SS are two ecologically important species that use intertidal (beach) habitat for spawning. These fish act as a trophic bridge between zooplankton and culturally and ecologically important predators, such as Marbled Murrelets, and Chinook salmon, which are the primary prey for northern and …

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Turning The Tide On Abandoned, Wrecked And Derelict Vessels In The Salish Sea, Michelle Young, Hilary Wilkinson, Troy Wood, Jeffrey Johnson, Jennifer Mcintyre Apr 2022

Turning The Tide On Abandoned, Wrecked And Derelict Vessels In The Salish Sea, Michelle Young, Hilary Wilkinson, Troy Wood, Jeffrey Johnson, Jennifer Mcintyre

Salish Sea Ecosystem Conference

Abandoned, wrecked and derelict vessels in the Salish Sea pose environmental contamination and safety risks. They are also visual eyesores. Untended vessels end up adrift, washed ashore, sunk, or broken apart, releasing fuel and other toxins into the marine environment. The debris and contaminants put marine life and sensitive habitats at risk, endanger mariners and beachgoers, cause harm to shoreline infrastructure, use valuable community resources, and impact the rights and traditions of indigenous peoples. The challenges are also compounded by conflicting jurisdictions between various levels of government dependent on the location, type and impact of the vessel, as well as …

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Rights Of The Salish Sea: A Major Paradigm Shift And An Innovative Legal Framework, Dr. Robin Reid, M. Kai Sanburn, Elisabeth Robson, Anne Whirledge-Karp, Chom S. Greacen, Julienne Battalia, Terry Marshall Apr 2022

Rights Of The Salish Sea: A Major Paradigm Shift And An Innovative Legal Framework, Dr. Robin Reid, M. Kai Sanburn, Elisabeth Robson, Anne Whirledge-Karp, Chom S. Greacen, Julienne Battalia, Terry Marshall

Salish Sea Ecosystem Conference

Across the world, local to national governments are experimenting with recognizing the rights of the non-human environment. This is called the ‘rights of nature’. Euro-American law treats nature as property to be used and managed by humans. Rights of nature recognizes the rights of the environment to grow, thrive and be healthy, independent of humans. Indigenous Peoples often take the lead in these initiatives, as in the Maori-led rights of Aotearoa/New Zealand’s Whanganui River and Ojibwe-led rights of manoomin (wild rice). In the transboundary Salish Sea, there are growing efforts to implement this innovative rights framework. One such effort is …

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Shifting Population Patterns Of Lingcod In A 25 Year Study In A Marine Park, Kirby Johnson, Ken Collins Apr 2022

Shifting Population Patterns Of Lingcod In A 25 Year Study In A Marine Park, Kirby Johnson, Ken Collins

Salish Sea Ecosystem Conference

Shifting Population Patterns of Lingcod in a 25 Year Study in a Marine Park The Edmonds Underwater Park has been a marine reserve since 1970. Beginning in 1996 and continuing for 25 years, there has been systematic observation of lingcod and an annual census of their nesting. The census over the years can be defined in three phases; an initial phase comprised of many volunteers developing and refining the protocol, a second phase of fewer observers using a mature process and the final phase with methodology refined for a small number of observers. The 25 years can also be generally …

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Spatial Distribution Of Tidal Currents And Quantification Of Transport Timescales In The Salish Sea – Data/Model Synthesis, Lakshitha Premathilake, Tarang Khangaonkar, Adi Nugraha, Sukyong Yun Apr 2022

Spatial Distribution Of Tidal Currents And Quantification Of Transport Timescales In The Salish Sea – Data/Model Synthesis, Lakshitha Premathilake, Tarang Khangaonkar, Adi Nugraha, Sukyong Yun

Salish Sea Ecosystem Conference

The tidal currents and tide-induced transport in major basins and sub-basins were studied at a Salish Sea-wide scale using the newly developed high-resolution version of the Salish Sea Model. Potential increase in the ship traffic through the Salish Sea and associated oil spill risk and the community interest in currents hind-cast and forecast information with sufficient accuracy and spatial resolution for use in water quality and ecosystem led to this development. The model performance was evaluated using tides monitoring data from National Oceanic and Atmospheric Administration (NOAA), monthly monitoring temperature and salinity data from 23 Ecology stations. A robust currents …

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Governor's Salmon Strategy Update: Securing A Future For People And Salmon In Washington, Erik Neatherlin Apr 2022

Governor's Salmon Strategy Update: Securing A Future For People And Salmon In Washington, Erik Neatherlin

Salish Sea Ecosystem Conference

Salmon are in crisis and time is running out. We must act now to restore balance and save our salmon. In 2021, Governor Inslee updated Washington State's Salmon Strategy: Securing a Future for People and Salmon in Washington. The is the first time the state's salmon strategy "Extinction is Not an Option" has been updated since it was developed in 1999. This presentation will focus on priorities, themes, and actions from the strategy update, and will outline the state's legislative, policy, and budget priorities to put salmon and people on a path to recovery. (This abstract is a placeholder and …

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Bridging The Boundary: Innovative Cross-Scale Collaborations, Laura Rivas, Erin Ryan-Penuela, Kara Cardinal Apr 2022

Bridging The Boundary: Innovative Cross-Scale Collaborations, Laura Rivas, Erin Ryan-Penuela, Kara Cardinal

Salish Sea Ecosystem Conference

The Puget Sound is a dynamic environment with diverse ecosystems, a booming and diverse population, wide varying topographies, and distributed and diverse governments and tribal nations. With limited resources for ecosystem recovery and an ever-growing list of needs, prioritizing and allocating resources to environmental recovery and protection is challenging. According to the Environmental Protection Agency, “one of the key challenges for all National Estuary Programs (NEPs) is to invigorate local support by addressing local problems, but doing so in a coordinated manner that enhances mutual benefits and makes progress on regional problems…”. As a National Estuary Program, Puget Sound is …

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Identifying Rockfish Hot Spot Areas In Puget Sound Through A Spatial Analysis Of Grey Data, Jamey Selleck Apr 2022

Identifying Rockfish Hot Spot Areas In Puget Sound Through A Spatial Analysis Of Grey Data, Jamey Selleck

Salish Sea Ecosystem Conference

Ongoing research continues to inform the conservation efforts and decision making processes related to rockfish recovery in the Salish Sea, and there is continued need in summarizing and quantifying historical information related to rockfish habitat and their areas of occurrence. The relative scarcity of existing empirical data on rockfish in Puget Sound makes every form of available data more valuable. Studies utilizing reviews of grey literature and interviews with local experts and resource users have highlighted the value of local ecological knowledge (LEK) and its use in conservation management. We spatially analyzed rockfish data compiled from historical fishing guide books …

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Incentivizing Green Infrastructure Equitably, Aaron Clark Apr 2022

Incentivizing Green Infrastructure Equitably, Aaron Clark

Salish Sea Ecosystem Conference

Incentive-based ecological programs have a checkered history. By providing incentives for voluntary environmental improvement, landowners and communities have the power to choose what changes they want (rather than having changes imposed on them), improvements can occur despite no regulatory requirements, and those changes tend to be enduring because landowner and community buy in leads to better stewardship. However, most incentive programs allocate resources inequitably, funneling public money to improvements in higher income, wealthy and predominantly white communities. But this need not be the case. In 2012 our partners at ECOSS asked community members from several underserved racial and cultural groups …

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Results From Seven Years Of Partnership Driven Young-Of-The-Year Rockfish Surveys In The South Salish Sea, Adam Obaza Apr 2022

Results From Seven Years Of Partnership Driven Young-Of-The-Year Rockfish Surveys In The South Salish Sea, Adam Obaza

Salish Sea Ecosystem Conference

Knowledge of rockfish recruitment dynamics and habitat utilization by recently settled rockfishes is valuable for developing appropriate fishery management and recovery actions. Until 2015, no survey effort sought the spatial and temporal data necessary to fill these gaps in the southern Salish Sea. To address this need, NMFS collaborated with state and federal agencies, non-profit groups, and academic institutions to develop a citizen science SCUBA survey program directed at young-of-the-year (YOY) rockfishes. In this program, volunteer and professional divers perform timed roving surveys in discrete habitat types, recording data on rockfish abundance in four morphological classes, as well as qualitative …

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Qualitative Network Models Facilitate Multi-Benefit Comparison Of Management Interventions For The Puget Sound Social-Ecological System, Dr. Caitlin Magel Apr 2022

Qualitative Network Models Facilitate Multi-Benefit Comparison Of Management Interventions For The Puget Sound Social-Ecological System, Dr. Caitlin Magel

Salish Sea Ecosystem Conference

Management of coastal systems should be guided by social, cultural, economic, and ecological objectives, but integrative decision support tools appropriate for complex coastal systems remain underutilized. We employed one such tool – qualitative network modeling (QNM) – to evaluate the multi-benefit outcomes of proposed recovery actions for Puget Sound, Washington, USA. The basis for our analysis was a conceptual model developed with regional scientists and stakeholders that describes how human stressors and ecosystem components are connected (via positive and negative links) to recovery objectives across the terrestrial-freshwater-estuarine gradient of a generalized Puget Sound watershed. Through a combination of alternative network …

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An Analysis Of Environmental Factors Influencing Spatial Clustering Of Salish Sea Clam Species, James Mcardle Apr 2022

An Analysis Of Environmental Factors Influencing Spatial Clustering Of Salish Sea Clam Species, James Mcardle

Salish Sea Ecosystem Conference

Mapping bivalve biomass through the use of GIS can be a valuable tool for managers of commercially and recreationally-important clam species. The Swinomish Indian Tribal Community has been conducting intertidal clam surveys on reservation beaches since the early 2000s with the goal of managing their bivalve fisheries sustainably. These data, however, can also be used to investigate how environmental factors may influence spatial clustering of target species. We mapped biomass data of Leukoma staminea, Saxidomus gigantea, Clinocardium nuttallii, and Tresus sp. on a culturally-valuable beach located on the reservation. Statistically significant clusters of biomass polygons were identified using a Getis-Ord …

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2021-2022 Preventing Non-Point Source Pollution: On-Site Sewage Program During The Time Of The Covid-19 Pandemic, Corrina Marote Apr 2022

2021-2022 Preventing Non-Point Source Pollution: On-Site Sewage Program During The Time Of The Covid-19 Pandemic, Corrina Marote

Salish Sea Ecosystem Conference

2021-2022 Preventing Non-Point Source Pollution: On-site Sewage Program During the Time of the COVID-19 Pandemic 2021-2022 Preventing Non-Point Source Pollution: On-site Sewage Program During the Time of the COVID-19 Pandemic Skagit County Public Health has required permits for on-site sewage systems (OSS) since 1958 and established an operations and maintenance (O&M) program in 2000. The O&M program goal was to identify sources of non-point pollution from OSS that closed a commercial shellfish harvest area the northern Puget Sound. Efforts in this area allowed the bay to reopen. With 4 dedicated employees, the OSS program was robust until March 2020 when …

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Working Together On A Coastal Marine Strategy For British Columbia., David Angus, Taylor Mason Apr 2022

Working Together On A Coastal Marine Strategy For British Columbia., David Angus, Taylor Mason

Salish Sea Ecosystem Conference

On the coast of British Columbia (BC), the effects of climate change, pollution, seafood production, coastal development, and transportation on our environment and related values are increasing. In addition, historical inequities in terms of access to ocean resources, the distribution of power and benefits, and exposure to harms persist and in some cases are exacerbated by business-as-usual approaches to marine management. Ensuring sustainable and equitable development of our marine economy in BC is possible with better, more complete ocean governance and strategies that reflect current and future values and pressures. As one of only a few maritime jurisdictions in North …

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Contaminant Reveal Spatial Segregation Of Chinook Salmon That Reside In Puget Sound: Implications For Salmon Health And The People And Whales That Eat Them, Sandra O'Neill Apr 2022

Contaminant Reveal Spatial Segregation Of Chinook Salmon That Reside In Puget Sound: Implications For Salmon Health And The People And Whales That Eat Them, Sandra O'Neill

Salish Sea Ecosystem Conference

Adult salmon accumulate most of their final body mass, and also most of their burdens of persistent organic pollutants (POPs), while feeding in marine habitats. Most Puget Sound Chinook salmon migrate to the ocean to feed and grow but a large fraction resides and feeds within the Salish Sea. These “residents” accumulate higher levels of POPs from the pelagic food web than do conspecifics feeding along the coast, exposing people and whales consuming resident fish to higher contaminant concentrations. We measured POPs in fish collected throughout Puget Sound marine basins in the fall and winter of 2016 and 2017 and …

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A Moral Debt: History, Science, And Our Obligation To Southern Resident Killer Whales, Dr. Jason Colby Apr 2022

A Moral Debt: History, Science, And Our Obligation To Southern Resident Killer Whales, Dr. Jason Colby

Salish Sea Ecosystem Conference

A Moral Debt: History, Science, and Our Obligation to Southern Resident Killer Whales Today, there is no more prominent symbol of the transnational Pacific Northwest, and particularly the Salish Sea, than orcas. Scientists, policymakers, and journalists regularly comment on the plight of the endangered Southern Resident Killer Whales in particular. Yet few explore the transformative role this population has played in regional (and global) environmental values, as well as their broader impact on the scientific study of whales. Southern Residents are the most influential cetacean population in human history, but they have paid a steep price for our change and …

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Assessing Sources Of Polybrominated Diphenyl Ether (Pbde) Flame Retardants Impacting Juvenile Chinook Salmon In The Snohomish River Watershed, Alex Gipe Apr 2022

Assessing Sources Of Polybrominated Diphenyl Ether (Pbde) Flame Retardants Impacting Juvenile Chinook Salmon In The Snohomish River Watershed, Alex Gipe

Salish Sea Ecosystem Conference

A 2016 study by the Washington Department of Fish and Wildlife (WDFW) found wild juvenile Chinook salmon in the Snohomish River had tissue concentrations of polybrominated diphenyl ether (PBDE) flame retardants high enough to produce sublethal effects. Juvenile Chinook salmon accumulate toxicants from streams in urban and developing environments that receive stormwater and wastewater discharges. In 2019, the Washington Department of Ecology, in partnership with WDFW, conducted a source assessment to determine sources of PBDEs in the Snohomish River watershed. Passive water samplers (semi-permeable membrane devices) were deployed throughout the Snohomish, Skykomish, and Snoqualmie Rivers during high and low flow …

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