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Articles 1 - 30 of 51
Full-Text Articles in Life Sciences
Creating A Mass-Balanced Food Web Model For A Generalized Restored Estuary In Puget Sound, Penelope Johnson
Creating A Mass-Balanced Food Web Model For A Generalized Restored Estuary In Puget Sound, Penelope Johnson
WWU Honors College Senior Projects
Historical anthropogenic modifications have been documented to have negative effects on the estuarine environments of Puget Sound. Over the last three decades there has been an increase in efforts to restore these estuarine environments through both passive and active means. This increase in restoration has been predicted to have positive effects on survival of juvenile Chinook salmon, which is an ecologically and culturally important species in the Salish Sea. The goal of this project was to use Ecopath with Ecosim to create a mass-balanced food web model of a generalized restored estuary to help further understanding of the potential effects …
Vignette 04: Olympia Oysters, Jodie Toft, Betsy Peabody
Vignette 04: Olympia Oysters, Jodie Toft, Betsy Peabody
Institute Publications
Olympia oysters (Ostrea lurida) are our only native oyster species here in the Salish Sea. Olympia oysters once covered an estimated 13-26% of the intertidal area in Puget Sound, mostly near the heads of inlets. A combination of overharvest, pollution, and habitat loss reduced the current population to less than 4% of historic numbers, though sparse numbers of Olympia oysters can still be found throughout most of their historic distribution. Looking to the future, as our region’s marine waters experience effects of climate change and ocean acidification (OA), native species such as the Olympia oyster may prove to …
Vignette 06: Living Shorelines In Puget Sound, Jason Toft
Vignette 06: Living Shorelines In Puget Sound, Jason Toft
Institute Publications
Nearly one third of Puget Sound’s shorelines are armored (e.g., seawall, bulkhead, riprap). Armoring has documented negative impacts on the flora and fauna that benefit from healthy intertidal beaches. Although shoreline armor may be necessary in some cases to protect people and property, there are often promising “living shoreline” options to restore natural features, also referred to as soft or green shorelines. These options can be applied to situations where complete restoration is either impractical or not feasible given human constraints. Living shoreline techniques often include a mix of design options, including armor removal, sediment nourishment of beaches, log placement, …
Vignette 12: The Blob, Nicholas Bond
Vignette 12: The Blob, Nicholas Bond
Institute Publications
A marine heat wave of unprecedented severity, areal extent and duration occurred in the Northeast Pacific Ocean during 2014-2016. This event, known as the “Blob,” had a wide variety of far- ranging effects on physical, chemical, and biological ocean properties. Because the Blob was such a massive perturbation, it represents an attractively large signal for inquiry in the Salish Sea. It represents a dress rehearsal for typical conditions in future decades due to global climate change.
Vignette 07: Stormwater Effluent Exerts A Key Pressure On The Salish Sea, Emily Howe
Vignette 07: Stormwater Effluent Exerts A Key Pressure On The Salish Sea, Emily Howe
Institute Publications
One of the primary terrestrial pressures on the Salish Sea estuarine and marine environment is urban stormwater runoff. When rainfall runs across hard, impervious surfaces, rather than soaking into the soil, it picks up and delivers toxic contaminants directly to nearby streams, rivers, and eventually the Salish Sea. In fact, for most toxic substances, surface runoff is the largest contributing source of loading to Puget Sound. Unfortunately, the Salish Sea’s relationship with stormwater effluent is no outlier; stormwater is the fastest growing cause of surface water impairment in the United States as urbanization transitions forested and other natural landscapes to …
Vignette 22: Sense Of Place, David J. Trimbach
Vignette 22: Sense Of Place, David J. Trimbach
Institute Publications
Sense of place refers to peoples’ bonds and meanings associated with place. Sense of place tends to include: place attachment (bond or connection to place); place dependence (reliance on place for need or goal achievement); place identity (identification with place); and place meaning (descriptions or imagery that define a place). Sense of place is subjective, yet patterned, providing researchers with the ability to assess shared connections, understandings, meanings, and the potential to predict behaviors or perceptions. Sense of place is recognized as integral to ecosystem health and recovery. Sense of place can be understood, if not harnessed to address ecosystem …
Vignette 13: The Salish Sea Model, Tarang Khangaonkar P.E.
Vignette 13: The Salish Sea Model, Tarang Khangaonkar P.E.
Institute Publications
Given numerous concerns related to the health of the ecosystem and the possibility of anthropogenic impacts—from population growth to climate impacts, such as sea level rise—scientists, engineers, and planners seek an improved basic understanding of the biophysical behavior of the Salish Sea. The Salish Sea Model (SSM) development was motivated by this urgent need for a comprehensive predictive model that could diagnose water quality issues and concerns and serve as a planning tool in support of Puget Sound restoration efforts. The SSM was developed by the Pacific Northwest National Laboratory in collaboration with the Washington State Department of Ecology (Ecology) …
State Of The Salish Sea: Executive Summary, Kathryn L. Sobocinski
State Of The Salish Sea: Executive Summary, Kathryn L. Sobocinski
Institute Publications
This report synthesizes information on past, current, and emerging stressors within the Salish Sea estuarine ecosystem. The Salish Sea is a complex waterbody shared by Coast Salish Tribes and First Nations, Canada, and the United States. It is defined by multiple freshwater inputs and marine water from the Pacific Ocean that mix in two primary basins, Puget Sound and the Strait of Georgia. Human impacts are multifaceted and extensive within the Salish Sea, with a regional population of almost 9 million people. Population growth has driven urbanization and development, which in turn has triggered structural changes to the landscape and …
Vignette 05: Blocking Culverts Impact Salmonid Survival, Northwest Indian Fisheries Commission
Vignette 05: Blocking Culverts Impact Salmonid Survival, Northwest Indian Fisheries Commission
Institute Publications
During the first six years of implementing the U.S. v. Washington culvert case injunction, the State of Washington has corrected 150 fish-blocking culverts in the Puget Sound Region. At the current rate, if additional support is not gained, the corrections of the remaining 799 culverts would be completed in 32 years or the year 2052.
Vignette 23: Indigenous Management Systems Can Promote More Sustainable Salmon Fisheries In The Salish Sea, William I. Atlas, Natalie C. Ban, Jonathan W. Moore, Adrian M. Tuohy, Spencer Greening, Andrea J. Reid, Nicole Morven, Elroy White, William G. Housty, Jess A. Housty, Christina N. Service, Larry Greba, Sam Harrison, Katherine Ir Butts, Elissa Sweeney-Bergen, Donna Macintyre, Matthew R. Sloat, Katrina Connors
Vignette 23: Indigenous Management Systems Can Promote More Sustainable Salmon Fisheries In The Salish Sea, William I. Atlas, Natalie C. Ban, Jonathan W. Moore, Adrian M. Tuohy, Spencer Greening, Andrea J. Reid, Nicole Morven, Elroy White, William G. Housty, Jess A. Housty, Christina N. Service, Larry Greba, Sam Harrison, Katherine Ir Butts, Elissa Sweeney-Bergen, Donna Macintyre, Matthew R. Sloat, Katrina Connors
Institute Publications
Indigenous peoples of the Northern Pacific Rim have harvested salmon for more than 10,000 years, and Pacific salmon (Oncorhynchus spp.) form the foundation of social-ecological systems encompassing communities from California to Kamchatka and Northern Japan. Through continuous placed-based interdependence with salmon, Indigenous societies formed deliberate and well-honed systems of salmon management. These systems promoted the sustained productivity of salmon fisheries. In Canada and the United States, Indigenous sovereignty and resource stewardship were forcibly disrupted by colonial government authority. Despite the destructive impacts of colonization, Indigenous culture and knowledge are resurgent in Canada and the United States. Indigenous fishing technologies and …
Vignette 19: Invasive European Green Crab, Jeff Adams, Emily Grason, P. Sean Mcdonald, Allen Pleus, Jude Apple, Roger Fuller, Lucas Hart, Alexandra Simpson
Vignette 19: Invasive European Green Crab, Jeff Adams, Emily Grason, P. Sean Mcdonald, Allen Pleus, Jude Apple, Roger Fuller, Lucas Hart, Alexandra Simpson
Institute Publications
European green crab pose documented threats to cultured and wild shellfish, eelgrass, and shoreline habitats and ecosystems. Because they can prey on juvenile crabs and shellfish, dense populations of EGC in the Salish Sea region could put fisheries and aquaculture resources in peril. After Fisheries and Oceans Canada researchers reported an established EGC population in Sooke Basin, BC in 2012, the Washington Department of Fish and Wildlife (WDFW) worked with Washington Sea Grant (WSG) to secure Puget Sound Marine and Nearshore Grant Program funding and establish a volunteer-based early detection and monitoring program. WSG launched Crab Team in 2015 with …
Vignette 14: Eelgrass Wasting Disease, Olivia Graham, Morgan Eisenlord, Drew Harvell
Vignette 14: Eelgrass Wasting Disease, Olivia Graham, Morgan Eisenlord, Drew Harvell
Institute Publications
Rising seawater temperatures can increase the risk of disease outbreaks in many taxa. Pathogens are potentially the ultimate keystone species in that their small biomass can have massive impacts that ripple through ecosystems. Disease outbreaks can be particularly damaging when they affect ecosystem engineers, such as seagrasses. Outbreaks of wasting disease in seagrasses are one of a myriad of stressors associated with declining temperate and tropical seagrass meadows around the globe. Levels of eelgrass wasting disease are high in the San Juan Islands and Puget Sound. These increasing levels of disease are a threat to sustainability of eelgrass meadows, our …
Section 1: Introduction, Kathryn L. Sobocinski
Section 1: Introduction, Kathryn L. Sobocinski
Institute Publications
Section 1 is an introduction to the report and the Salish Sea as a whole. The introduction provides an overview of the Salish Sea, the concept of "ecosystem health," and a roadmap to the rest of the report.
Section 7: The Future Of The Salish Sea? A Call To Action, Ginny Broadhurst, Natalie Baloy, Kathryn L. Sobocinski
Section 7: The Future Of The Salish Sea? A Call To Action, Ginny Broadhurst, Natalie Baloy, Kathryn L. Sobocinski
Institute Publications
Section 7 provides perspective from the Salish Sea Institute, acknowledging that science alone will not resolve continuing problems or emerging issues. Stronger policies along with education, leadership, and collaboration are needed.
Vignette 17: Salish Sea Jellyfish, Correigh Greene
Vignette 17: Salish Sea Jellyfish, Correigh Greene
Institute Publications
The Salish Sea is home to a diverse community of gelatinous zooplankton (or "jellies"). In their adult forms, jellies comprise a relatively large proportion of biomass in the Salish Sea. Questions regarding jellyfish abundance and climate variation in the Salish Sea have been difficult to address, in part because of a lack of consistent monitoring. Research presented in this vignette suggests that jellyfish are sensitive to climate signals like marine water temperatures, but do not appear to be systematically increasing in abundance over time. Due to advances in modeling, we may gain a better perspective on the roles jellies play …
Section 3: Urbanization And Human Impacts To The Seascape, Kathryn L. Sobocinski
Section 3: Urbanization And Human Impacts To The Seascape, Kathryn L. Sobocinski
Institute Publications
Section 3 turns to an in-depth discussion of stressors and impacts to the ecosystem from population growth and urbanization, such as increases in impervious surfaces, hardening of shorelines, and the problems caused by a myriad of marine contaminants.
Section 2: Context, Kathryn L. Sobocinski
Section 2: Context, Kathryn L. Sobocinski
Institute Publications
Section 2 sets a foundation for understanding the Salish Sea ecosystem by describing its fundamental biophysical processes and structure, including estuarine circulation, ecological productivity, and an overview of several important biogenic habitats.
Section 5: Cumulative Ecosystem Effects, Kathryn L. Sobocinski, Jennifer Boldt, Todd Sandell, Jaclyn Cleary, Michael Schmidt, Isobel Pearsall, Iris Kemp, Brian Riddell, Lynda V. Mapes
Section 5: Cumulative Ecosystem Effects, Kathryn L. Sobocinski, Jennifer Boldt, Todd Sandell, Jaclyn Cleary, Michael Schmidt, Isobel Pearsall, Iris Kemp, Brian Riddell, Lynda V. Mapes
Institute Publications
Section 5 introduces cumulative effects and brings in brief case discussions focused on herring, salmon, and orcas. Understanding the layers of stressors the ecosystem faces is integral to gaining a full picture of declines in ecosystem function.
Section 6: Opportunities For Improving Assessment And Understanding Of The Salish Sea, Kathryn L. Sobocinski
Section 6: Opportunities For Improving Assessment And Understanding Of The Salish Sea, Kathryn L. Sobocinski
Institute Publications
Section 6 offers a list of science-based needs and opportunities brought to light by the report and various existing efforts within the Salish Sea science community, representing opportunities for greater collaboration across geographic and jurisdictional boundaries.
Section 4: Climate Change: A Global Problem With Local Impacts, Kathryn L. Sobocinski
Section 4: Climate Change: A Global Problem With Local Impacts, Kathryn L. Sobocinski
Institute Publications
Section 4 shifts from the local impacts of urbanization to the locally realized impacts of global climate change, including ocean acidification and sea level rise, followed by evidence of climate change in the ecosystem, ranging from phytoplankton and kelp, to wetlands, salmon, and marine birds.
The State Of The Salish Sea, Kathryn L. Sobocinski
The State Of The Salish Sea, Kathryn L. Sobocinski
Institute Publications
This report synthesizes information on past, current, and emerging stressors within the Salish Sea estuarine ecosystem. The Salish Sea is a complex waterbody shared by Coast Salish Tribes and First Nations, Canada, and the United States. It is defined by multiple freshwater inputs and marine water from the Pacific Ocean that mix in two primary basins, Puget Sound and the Strait of Georgia. Human impacts are multifaceted and extensive within the Salish Sea, with a regional population of almost 9 million people. Population growth has driven urbanization and development, which in turn has triggered structural changes to the landscape and …
Vignette 09: Derelict Fishing Gear, Jason Morgan
Vignette 09: Derelict Fishing Gear, Jason Morgan
Institute Publications
Derelict fishing gear—nets, pots, and other gear lost during fishing operations or vessel transit—has been implicated in several aspects of degradation in the Salish Sea. Derelict gear can degrade marine habitats by scouring or preventing habitat access through accumulation of gear or by fundamentally altering habitats by trapping fine sediments and changing the substrate. Derelict gear has also been implicated in the deaths of countless fish, marine mammals, seabirds, and invertebrates in the Salish Sea. The issue of derelict fishing gear affects all reaches of the Salish Sea, albeit on different scales, and the Northwest Straits Initiative has provided its …
Changes In Strandings Of Cetaceans In Puget Sound/Salish Sea, Jessica L. Huggins, Amanda Warlick, Stephanie Norman, Jennifer Olson, Dyanna M. Lambourn, Joseph K. Gaydos, John Calambokidis
Changes In Strandings Of Cetaceans In Puget Sound/Salish Sea, Jessica L. Huggins, Amanda Warlick, Stephanie Norman, Jennifer Olson, Dyanna M. Lambourn, Joseph K. Gaydos, John Calambokidis
Salish Sea Ecosystem Conference
No abstract provided.
Return Of The Giants Of The Salish Sea: Increased Occurrence Of Humpback And Gray Whales In Inland Waters, John Calambokidis, Kiirsten Flynn, Elana Dobson, Jessica L. Huggins, Alie Perez
Return Of The Giants Of The Salish Sea: Increased Occurrence Of Humpback And Gray Whales In Inland Waters, John Calambokidis, Kiirsten Flynn, Elana Dobson, Jessica L. Huggins, Alie Perez
Salish Sea Ecosystem Conference
No abstract provided.
City Habitats: Thriving People, Thriving Nature And Solving Stormwater Collaboratively As A Region, Aaron Clark, Chirstin Hilton, Jessie Israel, Hannah Kett, Danielle Shaw, Sean Watts, Pam Emerson
City Habitats: Thriving People, Thriving Nature And Solving Stormwater Collaboratively As A Region, Aaron Clark, Chirstin Hilton, Jessie Israel, Hannah Kett, Danielle Shaw, Sean Watts, Pam Emerson
Salish Sea Ecosystem Conference
The City Habitats Network connects over 100 partner organizations and entities involved in the work or urban ecosystem restoration with a particular interest in green infrastructure and stormwater. By focusing on coordination of partners, collaborative approaches, and meeting communities where they are, City Habitats is accelerating and amplifying efforts from across the Salish Sea and turning the tide on polluted stormwater. This presentation will highlight the overall strategies of City Habitats and examples of our collective impacts across regional and economic sector lines. As a coalition of partners involved in urban restoration, City Habitats is intentionally centering racial and social …
Pacific Salmon In Puget Sound: Abundance, Survival And Body Size (1970-2015), James P. Losee, Aaron Dufault, Neala Kendall
Pacific Salmon In Puget Sound: Abundance, Survival And Body Size (1970-2015), James P. Losee, Aaron Dufault, Neala Kendall
Salish Sea Ecosystem Conference
Pacific salmon and trout (Oncorhynchus spp.) inhabiting Puget Sound marine waters have experienced both recent and long-term variability in abundance while supporting robust commercial, tribal, and sport fisheries. In recent years, numerous species-specific status reports have been completed, though formal comparisons among all five species of salmon and steelhead trout are not available. We compared spatial and temporal patterns of abundance, survival, productivity, and body size between hatchery-origin and naturally-produced adult salmon and steelhead trout returning to marine waters of Puget Sound, Washington, USA. Stock-specific total run size (of fish at the entrance to Puget Sound) was calculated for pink …
Simulating Eutrophication Effects In Puget Sound Using Qualitative Network Models, Christopher James Harvey, Kathryn Sobocinski
Simulating Eutrophication Effects In Puget Sound Using Qualitative Network Models, Christopher James Harvey, Kathryn Sobocinski
Salish Sea Ecosystem Conference
Ecosystems are complex, dynamic networks of interacting physical, chemical, biological and social components. A stressor such as eutrophication thus can cause responses throughout the system via direct and indirect pathways and feedbacks. Ecosystem models are typically designed to account for as many critical components, functions and pathways as possible in order to reasonably simulate how a system may respond to a stressor; however, many aspects of ecosystem structure and function are poorly studied and too data-poor to represent in a quantitative, mechanistic model. Qualitative network models (QNMs) assume comparably simple (i.e., positive or negative) relationships between interacting components, and allow …
Long-Term Monitoring In Central Puget Sound: Are Local Climate Anomalies Impacting Phytoplankton Populations?, Gabriela Hannach, Lyndsey M. Swanson, Kimberle Stark
Long-Term Monitoring In Central Puget Sound: Are Local Climate Anomalies Impacting Phytoplankton Populations?, Gabriela Hannach, Lyndsey M. Swanson, Kimberle Stark
Salish Sea Ecosystem Conference
Puget Sound is a large and productive estuarine system at the southern end of the Salish Sea. King County’s comprehensive, long-term marine monitoring program tracks water quality in Puget Sound’s Central Basin through year-round collection of data for a suite of physical, chemical and biological parameters. Phytoplankton monitoring began with traditional microscopy methods in 2008, and expanded to include a particle imaging system in 2014. These data are critical to assess how changes from climate, physical conditions and other stressors linked to anthropogenic activity from the region’s growing population may impact the Sound’s biodiversity and trophic structure. Currently, twice-monthly surface …
Sound Impacts: Building An Impact Metrics Portal For Tracking Collective Positive Impacts Of Restoration And Green Infrastructure Across The Puget Sound, Aaron Clark
Salish Sea Ecosystem Conference
SoundImpacts.org is a pilot of a regional scale, multi-user impact metrics portal. Entities engaged in restoration and positive impact environmental projects like green infrastructure (including rain gardens, tree planting, green roofs, depaving etc.) are highly dispersed, "siloed" and generally don't share data with each other and in fact rarely share the impacts of their work to their own communities beyond the funders who paid for the specific project. Sound Impacts addresses the tandem needs of 1. positive impact practitioners (e.g. NGO's, tribes, government agencies, communities) to collect and track their own impacts to better share that with their audiences and …
Nitrogen In Puget Sound: A Story Map, Sheelagh Mccarthy, Teizeen Mohamedali, Paula Cracknell
Nitrogen In Puget Sound: A Story Map, Sheelagh Mccarthy, Teizeen Mohamedali, Paula Cracknell
Salish Sea Ecosystem Conference
“Nitrogen in Puget Sound” is an ArcGIS Online Story Map developed by scientists at the Washington State Department of Ecology (Ecology). The Story Map is an interactive communication tool that uses a combination of maps, graphics, and text showcasing the state of the science and available data and resources used to understand nitrogen in Puget Sound. It was created to appeal to a broad audience, explaining nitrogen pollution and its effects at a basic level, as well as providing more detailed information for researchers and organizations interested in exploring available data and resources. The Story Map begins with an overview …