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2022

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Full-Text Articles in Physical Sciences and Mathematics

Occurrence And Distribution Of Contaminants Of Emerging Concern In The Puget Sound Nearshore Using A Marine Mussel Monitoring Program, Mariko Langness Apr 2022

Occurrence And Distribution Of Contaminants Of Emerging Concern In The Puget Sound Nearshore Using A Marine Mussel Monitoring Program, Mariko Langness

Salish Sea Ecosystem Conference

In a collaboration with the National Centers for Coastal Ocean Science (NCCOS) Mussel Watch Program (MWP), the Washington Department of Fish and Wildlife’s (WDFW) Mussel Monitoring program conducted a survey to assess the occurrence and distribution of contaminants of emerging concern (CEC) in Puget Sound nearshore biota. In the winter of 2019/2020, caged bay mussels (Mytilus trossulus) were deployed to forty sites along the Puget Sound nearshore, with sampling locations representing a wide range of potential COC exposures. After a three-month exposure period, a comprehensive CEC analysis targeting over 330 chemicals was performed on mussel tissue composite samples. CEC classes …


Accelerating Fish Passage Restoration In King County, Washington, Evan Lewis Apr 2022

Accelerating Fish Passage Restoration In King County, Washington, Evan Lewis

Salish Sea Ecosystem Conference

In 2018, King County launched development of a Fish Passage Restoration Program to address fish passage barriers owned by the County. Fish passage restoration helps King County meet obligations and commitments to honor tribal treaty rights. It also complements the county’s long-standing efforts to advance salmon habitat protection and restoration. In partnership with federal, tribal, state, and city officials, this program identifies barriers to salmon passage, coordinates with other protection and restoration actions in the county, prioritizes barrier remedies, and seeks funding to invest in projects that remove barriers that will allow the most salmon to swim to the best …


Evaluating The Effects Of Southern Resident Orcas Recovery Actions And External Threats In The Marine Ecosystem Of Puget Sound, Dr. Hem Nalini Morzaria-Luna Apr 2022

Evaluating The Effects Of Southern Resident Orcas Recovery Actions And External Threats In The Marine Ecosystem Of Puget Sound, Dr. Hem Nalini Morzaria-Luna

Salish Sea Ecosystem Conference

We apply two ecosystem models, the Atlantis Model for Puget Sound and the Salish Sea Atlantis Model, to simulate the recommendations of the Southern Resident Orca Task Force for recovery of the endangered Southern Resident Killer Whales (“Southern Residents”) in the Salish Sea. The downturn of the Southern Residents has been attributed to multiple, co-occurring anthropogenic and ecological pressures that are being addressed through the recommendations of the Orca Task Force. Atlantis is a spatially-explicit ecosystem modeling platform that simulates oceanography and biochemistry, food-web interactions, fisheries, and dependence of species on biogenic and physical habitat. We are evaluating the ecosystem-level …


Makah First Foods Climate Action Plan, John Reamer, Natalie Lowell, Carol Reamer, Haley Kennard, Morgan Goodrich, Janine Ledford, Rebekah Monette, Laura Nelson, Melissa Poe, Jenna Rolf, Isabell Ides, Chazley Brown Apr 2022

Makah First Foods Climate Action Plan, John Reamer, Natalie Lowell, Carol Reamer, Haley Kennard, Morgan Goodrich, Janine Ledford, Rebekah Monette, Laura Nelson, Melissa Poe, Jenna Rolf, Isabell Ides, Chazley Brown

Salish Sea Ecosystem Conference

First Foods are traditional foods eaten by indigenous communities since pre-contact and are particularly important for the Makah Tribe due to the remote location of the Makah Reservation and associated reliance on subsistence foods. Climate change is already affecting the quality, access, and abundance of Makah First Foods, with cascading effects on Makah livelihoods, harvesting practices, subsistence economy, knowledge transfer, and health. As part of a broader climate resilience strategy, the Makah Office of Marine Affairs/Port of Neah Bay, Sophie Trettevick Indian Health Center (STIHC), and the Makah Cultural and Research Center (MCRC) are assessing climate risk to key First …


Building A Foundation For The Southern Bc Marine Spatial Planning Program, David Angus, Janine Beckett Apr 2022

Building A Foundation For The Southern Bc Marine Spatial Planning Program, David Angus, Janine Beckett

Salish Sea Ecosystem Conference

“Building a Foundation for the Southern BC Marine Spatial Planning Program”. On the south coast of British Columbia (BC), impacts from climate change, pollution from industrial and urban development, and effects of resource extraction are impacting species and their habitat, affecting food security and cultural vitality for Indigenous peoples, and impacting employment in traditional coastal sectors such as fisheries and forestry. Marine spatial planning (MSP) is widely considered a viable strategy for balancing economic development and conservation, recognizing and considering cumulative impacts, and managing conflicts amongst uses. However, given the social and economic complexities of the south coast of BC, …


Coastal Restoration Toolkit - An Online Resource To Launch A Restoration Project In Your Community, Elsa Schwartz Apr 2022

Coastal Restoration Toolkit - An Online Resource To Launch A Restoration Project In Your Community, Elsa Schwartz

Salish Sea Ecosystem Conference

Staff at public agencies and non-profit organizations often receive phone calls or applications from individuals outside the professional restoration community (e.g. NGOs, municipalities, or individuals) who have a sincere desire to restore local habitats, but have difficulties figuring out where to begin. Restore America’s Estuaries has developed an online “Toolkit” (RestoreYourCoast.org) to support coastal residents and citizen scientists who identify problems with their local coastal environment and have an interest in transforming the idea into a project. The Toolkit enables community members who aspire to improve their local ecosystem, but who need the information and guidance to go from project …


Marine Species At Risk: A Salish Sea Transboundary Indicator With More Potential, Dr. Joseph Gaydos Apr 2022

Marine Species At Risk: A Salish Sea Transboundary Indicator With More Potential, Dr. Joseph Gaydos

Salish Sea Ecosystem Conference

Species at risk are native species, sub-species or ecologically significant units that warrant special attention to ensure their conservation. The number of marine species at risk within the Salish Sea is used by the US Environmental Protection Agency and Environment and Climate Change Canada as one of ten transboundary ecosystem indicators. Four jurisdictions within the Salish Sea have formal listing processes for marine species: the Province of British Columbia, the State of Washington, the Canadian Federal Government, and the United States Federal Government. As of October 15, 2021, there were 135 species listed as at risk in the Salish Sea: …


Filling The Gap: An Analysis Of Stormwater Utility Fees In The Puget Sound Watershed, Washington, Usa, Raye Evrard Apr 2022

Filling The Gap: An Analysis Of Stormwater Utility Fees In The Puget Sound Watershed, Washington, Usa, Raye Evrard

Salish Sea Ecosystem Conference

The Puget Sound region was an early adopter of funding local stormwater management programs via stormwater utility fees (SUFs). This paper presents a case study characterizing the use of SUFs in this rapidly growing watershed with over 5 million people. We systematically compiled and evaluated data on SUF rate structure for 124 jurisdictions and program budgets for 80 jurisdictions to describe the overall composition of revenues, the distribution of expenditures between capital and operating expenses, and the influence of National Pollutant Discharge Elimination System (NPDES) municipal stormwater permit status. We also calculated SUFs applied to individual parcels in 11 jurisdictions …


Assessment Of Vulnerabilities And Trade-Offs For Coordinated Investment In Regional Ecosystem Recovery And Flood Resilience, Nisqually Delta, Washington State, Usa, Dr. Eric Grossman Apr 2022

Assessment Of Vulnerabilities And Trade-Offs For Coordinated Investment In Regional Ecosystem Recovery And Flood Resilience, Nisqually Delta, Washington State, Usa, Dr. Eric Grossman

Salish Sea Ecosystem Conference

Projected changes in coastal sediment dynamics and flood exposure in the coming decades have important implications for estuary ecosystem recovery strategies and principal barriers to their implementation, namely transportation and flood control infrastructure. A numerical sediment transport model was used to evaluate whether the flux of sediment from the Nisqually River to the 308-hectare 2009 Brown’s Farm restoration project is sufficient to recover 1–2 m of subsided marshes given projected sea level rise. The effectiveness of distributary channel restoration alternatives in rerouting and introducing Nisqually River sediment to the restoration area were also assessed. Model and measurements indicate that ~10% …


Spatial And Temporal Patterns Of Biofouling Aquatic Invasive Species In The Salish Sea, Katie Sp Gale, Brett R. Howard, Calley Wasser, Thomas W. Therriault Apr 2022

Spatial And Temporal Patterns Of Biofouling Aquatic Invasive Species In The Salish Sea, Katie Sp Gale, Brett R. Howard, Calley Wasser, Thomas W. Therriault

Salish Sea Ecosystem Conference

Aquatic invasive species (AIS) have the potential to result in significant ecological and economic impacts. In the Salish Sea a number of primary and secondary invasion vectors exist including commercial shipping, recreational boating, and aquaculture-related movements that can introduce or spread AIS. An important subset of all AIS in this area are biofouling species, including tunicates and bryozoans, that can outcompete and displace native species. To better understand spatial and temporal patterns of biofouling AIS in the Salish Sea, Fisheries and Oceans Canada (DFO) has carried out a monitoring program since 2006 – a program that has expanded in scope …


Citizen Based Salmon Recovery In The Salish Sea, Rachel Vasak Apr 2022

Citizen Based Salmon Recovery In The Salish Sea, Rachel Vasak

Salish Sea Ecosystem Conference

Citizen Based Salmon Recovery in the Salish Sea Since 1990, the Washington State Regional Fisheries Enhancement Groups (RFEGs) have been working to involve local communities, citizen volunteers, and landowners in salmon recovery e??orts in Washington State. The RFEGs strive to actively engage diverse communities across the state and provide meaningful ways for thousands of community members to take action to help salmon. The RFEG motto is, “Our program is statewide, our priorities are local.” Each of the state’s 14 RFEGs is an independent nonpro??t organization with a unique mission and specific goals driven by local salmon recovery priorities from habitat …


Mapping, Prioritizing, And Promoting The Removal Of The 15,564 Pilings In The Snohomish Estuary, Elisa Dawson Apr 2022

Mapping, Prioritizing, And Promoting The Removal Of The 15,564 Pilings In The Snohomish Estuary, Elisa Dawson

Salish Sea Ecosystem Conference

The Snohomish County Marine Resources Committee has been leading a multi-year project to promote the removal of pilings in the Snohomish River estuary that are not associated with a dock, marina, or bulkhead. Using a mapping technique and previous data, 15,564 pilings were identified in the Snohomish estuary downstream of Highway 2, many of these pilings are leftover from the logging industry and other previous infrastructure in the Snohomish Estuary. Field work was done to collect detailed ecosystem and feasibility data on the pilings to help evaluate and prioritize pilings for removal. Nearly 7,000 pilings were identified as high priority …


Your Place In The Watershed - Toolkits For Communicating Stormwater Issues And Its Impacts On Underserved Populations, Ellen Southard Apr 2022

Your Place In The Watershed - Toolkits For Communicating Stormwater Issues And Its Impacts On Underserved Populations, Ellen Southard

Salish Sea Ecosystem Conference

Our work is based on the fundamental belief that all individuals have a role to play in Puget Sound recovery, conservation, and the protection of salmon habitat in our region. This session will look at case studies for outreach and engagement Toolkits for individuals and neighborhoods building green infrastructure as problem solvers. Ellen will share her work with multiple communities in and around Puget Sound from dense urban neighborhoods to rural areas with a focus on inclusion and overcoming language barriers; highlighting outreach efforts stemming from understanding of demographic needs, research, home country experiences and local watershed education. The Toolkits …


Community Education And Outreach Plans For Fecal Pollution Prevention Based On A Culturally Inclusive Approach In Poverty Bay Pollution Identification And Correction Program, Eunbi Lee Apr 2022

Community Education And Outreach Plans For Fecal Pollution Prevention Based On A Culturally Inclusive Approach In Poverty Bay Pollution Identification And Correction Program, Eunbi Lee

Salish Sea Ecosystem Conference

Cultural diversity and inclusion have been core concepts when strategizing community engagement plans for fecal pollution prevention in the Poverty Bay Shellfish Protection District (SPD) in 2021. The King County Pollution Identification and Correction (PIC) program has incorporated culturally inclusive community outreach strategies to optimize community-rooted participation in pollution prevention campaigns. In this presentation, we will share about tools and approaches used to partner with diverse communities to promote pollution prevention by changing social norms. The Poverty Bay SPD outreach program has utilized translation, transcreation, and community-led outreach as core pillars to include as many diverse communities as possible. First, …


Beyond The Brochure: Using Social Science Research And Methods To Motivate Behavior Change, Justine Asohmbom Apr 2022

Beyond The Brochure: Using Social Science Research And Methods To Motivate Behavior Change, Justine Asohmbom

Salish Sea Ecosystem Conference

Preventing water pollution and restoring the Salish Sea will require people across the region to adopt many new behaviors such as reducing garden chemicals, disconnecting downspouts, fixing car leaks, pumping out boat sewage and much more. Research underscores that simply providing information on why and how people should change their behavior rarely motivates change. Regionally and internationally, practitioners are using behavior change strategies to motivate people to voluntarily adopt practices benefiting our environment and communities. In its simplest form, behavior change applies social science principles to communicate effectively and motivate behavior. To most effectively motivate action, practitioners select a specific …


Delivering Science Support For Avian Conservation And Management In Salish Sea Estuaries, Trina Bayard Apr 2022

Delivering Science Support For Avian Conservation And Management In Salish Sea Estuaries, Trina Bayard

Salish Sea Ecosystem Conference

The Avian Monitoring in Estuaries project, led by the Stillaguamish Tribe, Audubon Washington, Ecostudies Institute, and WDFW, seeks to build a stronger scientific basis for avian conservation and the integration of birds into habitat management and restoration through delivery of science products and monitoring tools. In this talk we will highlight our progress to date and share opportunities for participation. The project team has conducted extensive end-user engagement with avian monitoring practitioners and estuary managers, synthesizing existing monitoring data and identifying priority avian management needs and concerns. In Phase I we conducted an inventory and synthesis of avian monitoring associated …


Data-Limited Fisheries Methods Shed Light On The Exploitation History And Population Dynamics Of Esa-Listed Yelloweye Rockfish In Puget Sound, Washington, Markus Min Apr 2022

Data-Limited Fisheries Methods Shed Light On The Exploitation History And Population Dynamics Of Esa-Listed Yelloweye Rockfish In Puget Sound, Washington, Markus Min

Salish Sea Ecosystem Conference

Yelloweye Rockfish in the Puget Sound/Georgia Basin were listed under the Endangered Species Act (ESA) in 2010, and a formal recovery plan for these species was published by NOAA Fisheries in 2017. Under this recovery plan, the criteria for delisting or downlisting are specified as certain levels of spawning potential ratio (SPR), which compares the reproductive capacity of a stock in its current condition relative to an unfished condition. SPR is a proxy for relative stock biomass, a commonly used metric of stock status. Although these metrics can be estimated without catch histories, catch histories improve our understanding of population …


Salish Sea Education In Public Schools Breaks Barriers To Science, Traditional Knowledge, And A Culture Of Evidence-Based Decision-Making. How Can We Elevate Access?, Mira Lutz Castle, Dr. Bert Weber, Leonard Merriman, Sally Hanft, Ardi Kveven, Elizabeth Schmitz, Anna Booker, Rosie Cayou James Apr 2022

Salish Sea Education In Public Schools Breaks Barriers To Science, Traditional Knowledge, And A Culture Of Evidence-Based Decision-Making. How Can We Elevate Access?, Mira Lutz Castle, Dr. Bert Weber, Leonard Merriman, Sally Hanft, Ardi Kveven, Elizabeth Schmitz, Anna Booker, Rosie Cayou James

Salish Sea Ecosystem Conference

If we want adult citizens who consider they are uphill from the ocean when voting and in their daily decisions, our children need opportunities to know, connect with, and help protect the Salish Sea, their home. If we want wildlife recognition to surpass brand recognition and outside playtime to surpass screen time for our children, we need estuary education growth on an exponential scale. Educating students about the watershed and sea we share is integral to any far-seeing strategic plan for recovery and fulfilling the solemn promises of our treaties. Salish Sea science in public and tribal schools reaches every …


Modeling The Effects Of Projected Climate Warming On Stream Temperatures In The Stillaguamish River Basin, Emily Smoot Apr 2022

Modeling The Effects Of Projected Climate Warming On Stream Temperatures In The Stillaguamish River Basin, Emily Smoot

Salish Sea Ecosystem Conference

The Stillaguamish River watershed is a snow-and-rain mixed basin in northwestern Washington, with snowmelt being important for sustaining spring and summer streamflow and buffering stream-temperatures. Elevations in the 1700 sq-km Stillaguamish basin reach roughly 2000 m that sustain a historical snowpack above about 1000 m. Previous basin-specific modeling projected that snowpack will retreat to higher elevations and summer stream temperatures will increase, reaching both embryo lethality (16 °C) and adult lethality (22 °C) by 2075 in the North and South Forks in the Stillaguamish River. Stream temperature increases are of significant concern because of the threatened Chinook salmon population, which …


Hatchery Release Strategy Effects On Production Outcomes For Chinook And Coho, Sam James Apr 2022

Hatchery Release Strategy Effects On Production Outcomes For Chinook And Coho, Sam James

Salish Sea Ecosystem Conference

Salmon hatcheries face the challenging task of developing release strategies that attempt to maximize survival and minimize risk to wild populations. Release strategies refer to the size at release, timing of release, nature of release (i.e. forced or volitional), number of releases, release location, and the use of acclimation facilities prior to release. We led an extensive review of hatchery release strategies and how they can be used as a management tool to influence production outcomes (i.e. survival, catch, and return ages). The review consisted of three components: 1) a systematic review of the literature from BC and the western …


Modeling The Effects Of Climate Change On Peak Flows In The Nooksack River, North Cascades, Wa, Evan Paul Apr 2022

Modeling The Effects Of Climate Change On Peak Flows In The Nooksack River, North Cascades, Wa, Evan Paul

Salish Sea Ecosystem Conference

The Nooksack River in northwest Washington State provides freshwater for agriculture and industrial use and serves as a vital habitat for endangered salmon, a resource that is of cultural and economic importance to the Nooksack Indian Tribe. Historically, peak streamflows in the 2300 sq-km Nooksack basin are driven by rainfall in the fall and early winter. Global climate models (GCMs) project an increase in air temperatures for the Salish Sea region, and previous modeling within the Nooksack basin projects a reduction in snowpack extent through the 21st century and an increase in winter streamflow magnitude. As more landscape becomes exposed …


Floodplains By Design: Introductory Guidance And Resources For The Integration Of Climate Information In Floodplain Management, Tess Wrobleski Apr 2022

Floodplains By Design: Introductory Guidance And Resources For The Integration Of Climate Information In Floodplain Management, Tess Wrobleski

Salish Sea Ecosystem Conference

The adaptive co-management of a complex, socio-ecological system such as floodplains often requires a strategic and coordinated approach for achieving climate resilience. At the same time, the collaborative nature of Integrated Floodplain Management often involves a broad range of actors with varying perspectives on adaptation who must work within their own organizational mandates, regulatory domains and decision-making frameworks. Through an assessment of existing literature, this work draws on best practices to develop Introductory Guidance for effective climate adaptation in Integrated Floodplain Management. The goal of this guidance document is to provide floodplain practitioners in Pierce, Snohomish, and Whatcom counties with …


Explorations Into The Assessment Of Hatchery Effectiveness And Interactions Between Hatchery And Wild Fish: Challenges And Results., Andy Rosenberger Apr 2022

Explorations Into The Assessment Of Hatchery Effectiveness And Interactions Between Hatchery And Wild Fish: Challenges And Results., Andy Rosenberger

Salish Sea Ecosystem Conference

Wild stocks of Pacific salmon have experienced significant declines in abundance over the past century. One of the management tools to compensate for these losses has been the use of hatcheries to produce salmon and provide continued support for our fisheries, rebuilding and conservation efforts. There is now widespread recognition of the need to evaluate the role and effectiveness of hatcheries in British Columbia. In 2020, the Pacific Salmon Foundation received funding through the BC Salmon Restoration and Innovation Fund to conduct an independent science-based review of hatchery effectiveness in BC. This work is made up of several components, a …


Bring Your Estuary Expertise To Students Outdoors! Seadoc Society’S Free Explore The Salish Sea Curriculum For Grade 5 - Just Add Water...And Community Partners., Mira Lutz Castle, Leigh Ann Gilmer Apr 2022

Bring Your Estuary Expertise To Students Outdoors! Seadoc Society’S Free Explore The Salish Sea Curriculum For Grade 5 - Just Add Water...And Community Partners., Mira Lutz Castle, Leigh Ann Gilmer

Salish Sea Ecosystem Conference

Over 200 schools are currently using the Explore the Salish Sea curriculum with the award-winning Explore the Salish Sea: A Nature Guide for Kids book, and SeaDoc has donated nearly 4,900 copies to students in low income and tribal schools. Why? To build a science-literate, traditional knowledge-respecting citizenry who considers the life downstream in their every day and voting decisions. Teaching students science is one thing, but giving students a hands-on opportunity to participate in real science is a surefire way to increase their learning engagement. SeaDoc Society invites you to the table to discover how this curriculum engages students …


The 2021 Puget Sound Nearshore Summit And Synthesis: Proceedings And Key Outcomes, Dr. Letitia (Tish) Conway-Cranos Apr 2022

The 2021 Puget Sound Nearshore Summit And Synthesis: Proceedings And Key Outcomes, Dr. Letitia (Tish) Conway-Cranos

Salish Sea Ecosystem Conference

Led by the Washington Department of Fish and Wildlife’s (WDFW) Estuary and Salmon and Restoration Program (ESRP) and the Puget Sound Ecosystem Monitoring Program (PSEMP) Nearshore Work Group, the goal of the Nearshore Summit was to connect natural scientists, social scientists, and restoration practitioners to synthesize Puget Sound nearshore restoration actions and science. Specific objectives were to: (1) Synthesize nearshore restoration science, (2) Capture insights from restoration practice, (3) Identify the most important science and restoration management questions that will guide future actions, (4) Update Puget Sound Nearshore Ecosystem Restoration Project (PSNERP) conceptual models for the ecosystem responses of specific …


Shoreline Management Plans: A Hindrance Or A Help To Kelp Conservation In Puget Sound?, Katherine Conroy Apr 2022

Shoreline Management Plans: A Hindrance Or A Help To Kelp Conservation In Puget Sound?, Katherine Conroy

Salish Sea Ecosystem Conference

The waters of Puget Sound are home to one of the most diverse assemblages of kelp species in the world, providing numerous ecosystem services. However, documented loss of bull kelp (Nereocystis luekeana) forests in South and Central Puget Sound and observed declines throughout Puget Sound, pose a threat to marine ecosystems dependent on kelp forests for habitat and primary production, and jeopardize economic activities reliant on kelp-based resources. Although the recently released Kelp Conservation and Recovery Plan highlights the need for action, local environmental regulations may complicate implementing restoration projects and may not adequately protect kelp. We used content analysis …


Social Science For The Salish Sea: An Interactive Discussion To Build A Research Agenda, Dr. Sara Breslow, Dr. David Trimbach, Leah Kintner, Heather Cole, Dr. Nathan Bennett, Dr. Leif Anderson, Erin Hanson, Dr. Jamie Donatuto Apr 2022

Social Science For The Salish Sea: An Interactive Discussion To Build A Research Agenda, Dr. Sara Breslow, Dr. David Trimbach, Leah Kintner, Heather Cole, Dr. Nathan Bennett, Dr. Leif Anderson, Erin Hanson, Dr. Jamie Donatuto

Salish Sea Ecosystem Conference

What do you think we need to know about people to advance the ecosystem recovery goals of our transboundary region? The Social Science for the Salish Sea (S4) project convened 40 researchers and practitioners from academic, governmental, non-profit and Indigenous organizations in Washington and British Columbia to scope an action-oriented “human dimensions” research agenda for our region. In this panel we will present our results, process, recommendations, and progress toward implementing the S4 agenda, and invite your questions and feedback in an interactive audience discussion. We identified 33 social science topics serving 4 major ecosystem recovery goals: ecological health, human …


California's Regulation Of Motor Vehicle Tires Containing 6ppd, Dr. Anne-Cooper Doherty Apr 2022

California's Regulation Of Motor Vehicle Tires Containing 6ppd, Dr. Anne-Cooper Doherty

Salish Sea Ecosystem Conference

The California Department of Toxic Substances Control's Safer Consumer Products (SCP) program has proposed motor vehicle tires containing 6PPD as a Priority Product in an effort to help mitigate the impacts of 6PPD and 6PPD-quinone on coho salmon and other potentially impacted aquatic species. The SCP program utilizes a novel approach to regulation of chemicals in consumer products that has allowed the Program to move quickly on this important issue, with hopes that this regulation will have impacts across the entire tire market. This presentation will provide an overview of how the SCP program works, including the requirement for manufacturers …


Occurrence And Fate Of 6ppd-Quinone In Urban Receiving Waters, Dr. Edward Kolodziej Apr 2022

Occurrence And Fate Of 6ppd-Quinone In Urban Receiving Waters, Dr. Edward Kolodziej

Salish Sea Ecosystem Conference

In the U.S. Pacific Northwest, coho salmon, (Oncorhynchus kisutch), annually exhibit acute mortality upon stormwater exposure when adult salmon migrate to urban and near urban creeks to reproduce. We recently linked these mortality events to “6PPD-quinone”, a highly toxic transformation product of a common industrial antioxidant chemical 6PPD that is ubiquitously used in vehicle tires. These results reveal unanticipated risks of tire rubber antioxidants to an important aquatic species and imply toxicological relevance for widely dissipated tire rubber residues. Management of roadway runoff in general, and 6PPD/6PPD-quinone specifically, will be a clear priority for maintenance of ecosystem health and function, …


Pathogen Filtration: An Untapped Ecosystem Service, Corinne Klohmann Apr 2022

Pathogen Filtration: An Untapped Ecosystem Service, Corinne Klohmann

Salish Sea Ecosystem Conference

Eelgrass (Zostera marina) is a marine angiosperm found in coastal temperate waters worldwide. Eelgrass is a vital part of coastal ecosystems providing nurseries for fish, habitat for invertebrates, sediment stabilization, coastal protection, water filtration, and carbon sequestration. In the tropics, seagrass beds have demonstrated their ability to decrease the abundance of the bacterial pathogen Enterococcus. Enterococcus-associated pathogens can sicken humans and other animals in the water. This work examines microbial community composition in seagrass beds in Puget Sound and the underlying mechanisms involved in pathogen filtration by seagrass beds. We assessed microbial abundance and composition using Enterococcus assays as well …