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Articles 1 - 30 of 563
Full-Text Articles in Life Sciences
Quantifying The Role Of Water Quality On Nitrogen Cycling In A Trophic Estuary, Kayla Gonzalez-Boy
Quantifying The Role Of Water Quality On Nitrogen Cycling In A Trophic Estuary, Kayla Gonzalez-Boy
Symposium of Student Scholars
Jobos Bay Estuary is an intertidal, tropical estuary located in southern Puerto Rico. The estuary covers about 12 km2 and has a variety of habitats, such as seagrass beds, mangroves, mud flats, and coral reefs, which play important roles in sediment trapping and water quality maintenance. Seagrasses also serve as nursery and feeding grounds and provide shelter for macrofauna. Currently, the role of seagrasses and water quality on nitrogen (N) cycling in trophic estuaries is not well constrained. Understanding variations in sediment-based effects on N cycling rates and transformations, and how they are associated with water quality, is an …
Estimating Blue Carbon Stocks In Native And Non-Native Seagrass Beds Of Jobos Bay, Pr, Michael Chapman, Raven Winant, Kayla Gonzalez-Boy, Mark Mccarthy, Ángel Dieppa-Ayala
Estimating Blue Carbon Stocks In Native And Non-Native Seagrass Beds Of Jobos Bay, Pr, Michael Chapman, Raven Winant, Kayla Gonzalez-Boy, Mark Mccarthy, Ángel Dieppa-Ayala
Symposium of Student Scholars
Seagrasses are keystone species that support coastal biodiversity, but not all species of seagrasses provide the same ecosystem services. Although seagrasses occupy a small area of marine habitat, they provide many ecosystem services. They stabilize sediments, remove nutrients, provide habitat and food for diverse marine life, and promote carbon storage in sediments. Jobos Bay is the second largest estuary in Puerto Rico and contains salt marshes, mangroves, and seagrass beds. The native seagrass, Thalassia testudinum, is the most abundant seagrass in the bay; however, a seagrass species from the Indian Ocean, Halophila stipulacea, began invading in recent years. The impacts …
The Importance Of Processing And Understanding Bacteriophages, Alexandra Greco, Emily Bishop, Emma Hofseth, Kelsi Phelps
The Importance Of Processing And Understanding Bacteriophages, Alexandra Greco, Emily Bishop, Emma Hofseth, Kelsi Phelps
Undergraduate Research Competition
There are many bacteria that are increasingly becoming antibiotic resistant resulting in a new prevalent medical issue. Bacteriophages are evolutionary virus weapons that infect and fight against these infectious bacteria that give rise to Bacteriophages the most abundant biological entity found in nature, outnumbering all life combined, with a total estimated population of 1031. As part of BIOL 302L - Phage Discovery, we focused on identifying phages from individually collected soil samples found regionally in South Carolina. Through a series of experiments, we were able to identify and amplify two newly discovered phages that infect Mycobacterium Smegmatis following the protocols …
Silver Carp Hypophthalmichthys Molitrix Movements In The Lower Cumberland And Lower Tennessee River, Miranda Belanger
Silver Carp Hypophthalmichthys Molitrix Movements In The Lower Cumberland And Lower Tennessee River, Miranda Belanger
Scholars Week
Silver Carp Hypophthalmichthys molitrix are an invasive species making up a large portion of the fish biomass in the lower portions of the Tennessee River and the Cumberland River. This species is expanding its range throughout the upper portions of these rivers, beginning with Kentucky Lake and Lake Barkley. Silver Carp rarely spawn in Kentucky Lake and Lake Barkley, but they can enter these reservoirs through the lock chamber. Thus, the bottleneck created by lock chambers can be used to control expansion of invasive Silver Carp. Although Silver Carp movement patterns have been studied in other portions of the Tennessee …
Margalefidinium Polykrikoides Cyst Resuspension In The Lafayette River, A Sub-Tributary Of The Chesapeake Bay, Gabrielle Greaney, Eduardo Perez Vega, Katherine Crider, Dreux Chappell, Kimberly Powell, Richard Hale, Peter Bernhardt, Margaret Mulholland
Margalefidinium Polykrikoides Cyst Resuspension In The Lafayette River, A Sub-Tributary Of The Chesapeake Bay, Gabrielle Greaney, Eduardo Perez Vega, Katherine Crider, Dreux Chappell, Kimberly Powell, Richard Hale, Peter Bernhardt, Margaret Mulholland
Undergraduate Research Symposium
Harmful Algal Blooms are a collection of algae in a body of water that can cause serious environmental issues and health problems in both people and aquatic organisms. Dinoflagellates are microscopic, unicellular, and eukaryotic organisms that are well known for forming harmful algal blooms because of eutrophication. Coastal Virginia suffers from HABs in the Chesapeake Bay and its tributaries. A common species of dinoflagellate, known as Margalefidinium polykrikoides exists in the Chesapeake Bay. The purpose of this study is to determine if sediment resuspension produced by wind generated surface gravity waves cause cysts (dinoflagellate resting stages) to be suspended into …
In Silico Screeing Of Natural Compounds As Novel Drug Targets For Treatment Of Multiple Myeloma, Rousselene Larson
In Silico Screeing Of Natural Compounds As Novel Drug Targets For Treatment Of Multiple Myeloma, Rousselene Larson
Student Research Symposium
In Silico Screening of Natural Compounds as Novel Drug Targets for The Treatment of Multiple MyelomaRousselene Larson1 2, Naveen Duhan1, and Rakesh Kaundal1 2 *1Department of Plants, Soils, and Climate, College of Agriculture and Applied Sciences; 2Bioinformatics Facility, Center for Integrated BioSystems; Utah State University, Logan, UT 84322 USA* corresponding author (e-mail: rkaundal@usu.edu)Telephone: +1 (435) 797-4117Fax: +1 (435) 797-2766Abstract: Multiple Myeloma (MM) is an incurable hematological malignancy cancer characterized by excessive clonal plasma cell proliferation in the bone marrow. In the United States, MM is the second most prevalent type of cancer that affects about 4 in 100,000 Americans. Toxicity …
Transgenic Expression Of Prunus Persica Salt Overly Sensitive 2 (Ppsos2) In Atsos2 Mutant Imparts Salt Tolerance In Arabidopsis, Vishal Singh
Student Research Symposium
Salinity is one of the major environmental stresses that affect crop growth and productivity. Almond crop has a great potential for Utah as a cash crop and salinity is one of the stresses affecting its growth and yield. Although almond trees are sensitive to salt stress, salinity-tolerant rootstocks can play a significant role in sustaining crop production in semiarid areas. Salinity tolerance has a complex mechanism with many genes acting in different pathways. Understanding the role of potential candidate genes is an important aspect of genomics assisted improvement of stress tolerance. In this study, functional complementation of the Prunus persica …
Day Versus Night Irrigation Loss From Sprinkler Irrigation Of Urban Crops, Samikshya Pyakurel
Day Versus Night Irrigation Loss From Sprinkler Irrigation Of Urban Crops, Samikshya Pyakurel
Student Research Symposium
Nighttime irrigation is a widespread strategy to conserve water, as it reduces wind drift and evaporation loss (WDEL). However, daytime sprinkler irrigation may also conserve water by lowering the temperature and increasing the humidity of crop microclimates, thereby reducing evapotranspiration (ET). Therefore, the objectives of this study include: 1) quantify whether a water savings exists between day and night irrigation with a water balance approach, 2) analyze the microclimate effects by irrigation timing to determine any changes to WDEL and evaporative demand, and 3) assess the quality and yield response of two urban crops. In 2019-21, we established 12 field …
Genomic Prediction Of Salinity Stress Tolerance In Maize (Zea Mays L.), Vishal Singh
Genomic Prediction Of Salinity Stress Tolerance In Maize (Zea Mays L.), Vishal Singh
Student Research Symposium
Maize is the largest crop in the world in terms of production. Utah, maize is a potential fodder crop. With increasing climate change, soil salinity is also increasing worldwide. Soil salinity is very detrimental to plants' growth and development and crop production. For a fodder crop, plant biomass is an important trait, and maize biomass is adversely affected by salinity stress, especially at the seedling stage. A Selection of salt-tolerant breeding material is a time-consuming process and its complexity is further increased by significant heterogeneity in soil salinity under field based evaluation. Genomic prediction is an emerging tool that can …
Comparative Study Of The Microbiome Of The Native Plant Ceanothus Velutinus (Snowbrush) From Different Locations And Greenhouse Studies, Jyothsna Ganesh
Comparative Study Of The Microbiome Of The Native Plant Ceanothus Velutinus (Snowbrush) From Different Locations And Greenhouse Studies, Jyothsna Ganesh
Student Research Symposium
Climatic change is one of the biggest threats to the ecosystem and biodiversity by enhancing environmental stresses. Environmental stresses such as biotic and abiotic stresses affect plant health and reduce crop production. The rhizosphere microbiome of a plant plays a significant role in a plant's defense against various biotic and abiotic stresses. In this study, we are investigating the microbiome diversity of bulk soil, rhizosphere, and endosphere of Ceanothus velutinus, snowbrush. Ceanothus is an evergreen native plant that is usually found in dry areas and thrives well in harsh conditions. The snowbrush samples were collected from different locations 1920m, 1950m, …
Microbial Community Of The Rhizosphere Of Ceanothus Velutinus Improves The Plant's Growth And Development Under Greenhouse Conditions, Jyothsna Ganesh
Microbial Community Of The Rhizosphere Of Ceanothus Velutinus Improves The Plant's Growth And Development Under Greenhouse Conditions, Jyothsna Ganesh
Student Research Symposium
Climatic change-induced environmental stresses affect crop production. Drought is such a stress which affect crop production and landscaping adversely. Native plants are great for low water use landscaping and can adapt to the natural environment. USU Center for Water-Efficient Landscaping has released a list of native plants that can be used for this purpose. This study focuses on a native plant Ceanothus velutinus (snowbrush) which is an evergreen plant native to western North America. It thrives well in harsh conditions and can act as ornamental plant in low water use landscaping but is difficult to propagate under landscape conditions. Here, …
Deepnec: A Novel Alignment-Free Tool For The Characterization Of Nitrification-Related Enzymes Using Deep Learning, A Step Towards Comprehensive Understanding Of The Nitrogen Cycle, Naveen Duhan
Student Research Symposium
Abstract: Nitrification is an important microbial two-step transformation in the global nitrogen cycle, as it is the only natural process that produces nitrate within a system. The functional annotation of nitrification-related enzymes has a broad range of applications in metagenomics, agriculture, industrial biotechnology, etc. The time and resources needed for determining the function of enzymes experimentally are restrictively costly. Therefore, an accurate genome-scale computational prediction of the nitrification-related enzymes has become much more important.In this study, we developed an alignment-free computational approach to determine the nitrification-related enzymes from the sequence itself. We propose deepNEC, a novel end-to-end feature selection and …
Pyseqrna: An Automated Python Package For Advanced Rna Sequencing Data Analysis And Annotation, Naveen Duhan
Pyseqrna: An Automated Python Package For Advanced Rna Sequencing Data Analysis And Annotation, Naveen Duhan
Student Research Symposium
Abstract: With the advent of Next-Generation Sequencing (NGS) technologies, numerous data is being generated every day, however, streamlined analysis remains a big hurdle to efficiently use the technology. A large number of algorithms, statistical methods, and software tools have been developed in recent years to perform the individual analysis steps of various NGS applications. Some NGS applications data analysis procedures are therefore very complex, requiring several program tools to be downloaded for their various processing steps. There is a significant room for the development of scalable computing environments that link the individual software components to automated workflows to efficiently and …
Nitrogen Use Efficiency And Soil Bioavailable Nitrogen In Corn Silage Production In A Semi-Arid Environment, Phearen Miller
Nitrogen Use Efficiency And Soil Bioavailable Nitrogen In Corn Silage Production In A Semi-Arid Environment, Phearen Miller
Student Research Symposium
As agriculture intensifies, the world faces a dual challenge of increasing food production while reducing impacts of excess reactive nitrogen (N) in the environment. A field study examining different N sources in corn silage under semi-arid conditions was conducted at the Greenville farm in northern Utah (41°45’ N, 1111°48’52 W) since 2012. The experimental design is a randomized complete block design with four blocks and four treatments: control (no nitrogen), low ammonium sulfate (AS 112 kg N/ha), high ammonium sulfate (AS 224 kg N/ha), and steer manure compost (224 kg total N/ha). We examined yield, nitrogen use efficiency (NUE), and …
Assessing The Legacy Of Large Woody Debris As Coastal Protection In Bc And Washington, Jessica Wilson
Assessing The Legacy Of Large Woody Debris As Coastal Protection In Bc And Washington, Jessica Wilson
Salish Sea Ecosystem Conference
Large Woody Debris (LWD) accumulates naturally in the coastal environment (Brennan et al., 2009; Sass, 2009) and is thought to be a vital component of a diverse coastal habitat ( Rich et al., 2014). Decreasing natural coverage of LWD (Heathfield & Walker, 2011) and increasing demand for environmentally sensitive coastal protection techniques has led to the promotion of LWD as a viable nature-based method of shoreline protection (e.g. Johannessen et al., 2014; Stewardship Centre for BC, 2016; Washington Department of Fish and Wildlife, 2016). However, there is currently no peer-reviewed literature assessing the efficacy of coastal protection using LWD. This …
Northern Kelp Crab (Pugettia Producta) Feeding Preferences - Kelp Crabs Eat Kelp, And Lots Else?, Katie Dobkowski
Northern Kelp Crab (Pugettia Producta) Feeding Preferences - Kelp Crabs Eat Kelp, And Lots Else?, Katie Dobkowski
Salish Sea Ecosystem Conference
Bull kelp (Nereocystis luetkeana) is an important source of both habitat and primary production in the Salish Sea and appears to be in decline in certain areas. Northern Kelp Crabs (Pugettia producta) are large crustacean consumers that preferentially consume N. luetkeana over other local seaweed species in laboratory feeding trials and exert some level of top-down control on kelp populations in the field. We have observed differences in kelp crab density around the Salish Sea and noted P. producta living on invasive wireweed (Sargassum muticum) as well as on kelp and in other habitats. We used a combination of laboratory …
A Journey, Not A Destination: An Agency Approach To Incorporate Diversity, Equity, Inclusion, And Justice, Alexandra Doty
A Journey, Not A Destination: An Agency Approach To Incorporate Diversity, Equity, Inclusion, And Justice, Alexandra Doty
Salish Sea Ecosystem Conference
Puget Sound environmental recovery is a complex, wicked problem, including both ecosystem and human and cultural wellbeing. The Puget Sound Partnership (Partnership) is a small Washington State agency that serves as a backbone organization guiding Puget Sound recovery, coordinating and collaborating with hundreds of partner organizations to accelerate recovery of Puget Sound. Our partner organizations include state and federal agencies, tribes, cities, counties, non-profits, academic institutions, special purpose districts, and many others. In 2018, the Partnership began a journey to better enable and foster diversity, equity, inclusion, and justice within the agency itself, as well as within the Puget Sound …
Begin At The Beginning: Steps, Stumbles And Learnings On The Path To Understanding And Implementing Dei Practices In Regional Engo., Christianne Wilhelmson
Begin At The Beginning: Steps, Stumbles And Learnings On The Path To Understanding And Implementing Dei Practices In Regional Engo., Christianne Wilhelmson
Salish Sea Ecosystem Conference
In 2018, Georgia Strait Alliance made the decision to begin the journey of addressing the complex issue of diversity, equity and inclusion (DEI) in our organization, one that like many environmental groups in BC lacks diversity in its staff and board. We prioritized this as we recognized there is an inherent risk that our work and our organization could become irrelevant if we don’t represent the communities we claim to serve. In addition to diversity, we also needed to address the need to deepen our relationships with indigenous communities in the Georgia Strait region and reflect those relationships in our …
Reconstructing A Century Of Coastal Productivity And Predator Trophic Position In The Salish Sea Using Archival Harbor Seal Bone., Megan Feddern
Reconstructing A Century Of Coastal Productivity And Predator Trophic Position In The Salish Sea Using Archival Harbor Seal Bone., Megan Feddern
Salish Sea Ecosystem Conference
Following the passage of the Marine Mammal Protection Act of 1972, pinniped populations along the west coast of North America experienced exponential population increases following historic lows in the 1970's. In the Salish Sea, this increase in pinniped abundance also corresponded to large scale changes environmental condition (ie. Pacific Decadal Oscillation; PDO) and declines of prey species (forage fish, salmon), creating new challenges and tradeoffs for fisheries management in the region. The objective of this research is to understand how an abundant top predator, harbor seals, respond to bottom up forces in the system such as shifts in primary productivity …
Shifting Phenology Of An Apex/Specialist Predator Tracks Changes In Its Favored Prey, Ailene Ettinger
Shifting Phenology Of An Apex/Specialist Predator Tracks Changes In Its Favored Prey, Ailene Ettinger
Salish Sea Ecosystem Conference
Phenology, or the timing of biological activities such as migration, growth, and reproduction, can have dramatic implications for fitness; consumer phenology that is out of step with its resource phenology can cause increased mortality or reduced reproductive success. The timing of southern resident killer whale (SRKW, Orcinus orca) movements in the Salish Sea is thought to be related to seasonal migrations of their prey. In recent decades, the abundance and phenology of the favored prey of SRKWs, salmon, has shifted in many locations across the western United States. Here, we use the OrcaMaster Database to quantify seasonal variation in SRKW …
Sources, Sinks, Dispersion And Cycling Of Dissolved Polybrominated Diphenyl Ethers (Pbdes) Discharged In The Strait Of Georgia, Yuanji Sun
Salish Sea Ecosystem Conference
The temporal and spatial distribution of dissolved PBDE concentration in the Strait of Georgia (SoG) is combined with concentrations predicted from a time-dependent box model of the Salish Sea to investigate the sources, sinks, dispersion and cycling of PBDE congeners. Prominent sub-surface concentration maxima (up to ca. 400 pg/L for total PBDE) occasionally measured in the southern SoG point to the Iona Island Waste Water Treatment Plant diffusers, discharging primary-treated effluent at 72 - 106 m depth, as an important proximal point source of dissolved PBDE. The decreasing depth of concentration maximum with increasing congener bromination suggests that dissolved PBDEs …
Harbor Porpoises (Phocoena Phocoena Vomerina) Catching And Handling Large Fish On The U.S. West Coast, Katrina Maciver
Harbor Porpoises (Phocoena Phocoena Vomerina) Catching And Handling Large Fish On The U.S. West Coast, Katrina Maciver
Salish Sea Ecosystem Conference
The harbor porpoise is a cryptic species, and information on their behavior is limited. This study describes the chase and capture of large fish by harbor porpoises (Phocoena phocoena vomerina) in the Salish Sea off Fidalgo Island, Washington, which were identified as salmonid species (2017/2019). Similar large fish chase/capture events of American Shad (Alosa sapidissima) have also been documented in San Francisco, CA (2016/2017). In all capture events consistent behavior was observed: the porpoise accelerated after the fish, swimming in a circle at the same spot, diving and coming out of the water head first carrying the fish cross-wise in …
Sublethal Effects Of The Sea Lice Pesticides Ivermectin And Slice® On Starry Flounder Behaviour And Physiology When Exposed To Contaminated Sediments, Daniel King
Salish Sea Ecosystem Conference
Aquaculture is an important part of Canada’s economy, and open net-pen Atlantic salmon (Salmo salar) aquaculture is a key facet of this industry. Chemotherapeutants, including anthelminthics, are often used in salmon aquaculture to prevent the loss of stock due to various pathogens. The formulation SLICE® (active ingredient: emamectin benzoate) and ivermectin (IVM) are two chemicals used in salmon aquaculture in Canada to treat and prevent sea lice infestations. SLICE® and IVM have low water solubilities and long half-lives in sediment (225 d and >100 d, respectively). Due to the persistence of these pesticides and their tendency to accumulate in marine …
Innovative Treatment Of Wood Waste Sediments Using Reactive Amendments And Dgt Passive Porewater Sulphide Testing Techniques, Daniel Berlin
Innovative Treatment Of Wood Waste Sediments Using Reactive Amendments And Dgt Passive Porewater Sulphide Testing Techniques, Daniel Berlin
Salish Sea Ecosystem Conference
Esquimalt Harbour has historically been used for log rafting, log storage and wood mill operations over the last 70 years, resulting in the accumulation of over 200 hectares of wood waste deposits. As wood waste decomposes, it creates a biological oxygen demand in sediments that can reduce or eliminate oxygenated zones. This can lead to a buildup of compounds such as sulphides and ammonia, which are toxic to benthic organisms at higher concentrations. Public Services and Procurement Canada, on behalf of the Department of National Defence, has completed studies of wood waste sediments and is currently constructing a pilot project …
Results From Biennial Mussel Watch Monitoring In Sinclair And Dyes Inlets, Puget Sound, Washington From 2010 To 2018, Robert Johnston
Results From Biennial Mussel Watch Monitoring In Sinclair And Dyes Inlets, Puget Sound, Washington From 2010 To 2018, Robert Johnston
Salish Sea Ecosystem Conference
As a component of a greater effort to assess the status and trends of ecological resources within Sinclair and Dyes Inlets, a monitoring network of mussel watch sites was initiated in winter of 2010 and has continued every-other-year through 2018. Twenty-five indigenous bivalve monitoring sites were sampled biennially for a total of five campaigns. Indigenous mussels (Mytilus spp.) were collected at sites located near suspected sources (industrial, wastewater, and storm water outfalls; marinas, stream mouths, and other sources) as well as sites that were representative of ambient conditions in Sinclair and Dyes Inlets, the adjoining passages, and Liberty Bay in …
Can Larval Dispersal Explain Differences In Population Structure Of Esa-Listed Rockfish In Puget Sound?, Kelly S. Andrews
Can Larval Dispersal Explain Differences In Population Structure Of Esa-Listed Rockfish In Puget Sound?, Kelly S. Andrews
Salish Sea Ecosystem Conference
In 2010, three species of rockfish in the Puget Sound/Georgia Basin (PSGB) region were listed under the Endangered Species Act (ESA). Subsequent genetic analyses revealed that yelloweye rockfish in PSGB were genetically differentiated from individuals on the outer coast; while canary rockfish showed no population structure among these geographic regions. These results confirmed the listing status of yelloweye rockfish in PSGB as a “distinct population segment” (DPS), but suggested that canary rockfish in PSGB were not a DPS, which led to their removal from the endangered species list. Here, we test whether larval dispersal could be a mechanism for the …
Reefs For Rockfish: A Collaborative Approach To Monitor Populations And Increase Awareness In Howe Sound., Amanda Weltman
Reefs For Rockfish: A Collaborative Approach To Monitor Populations And Increase Awareness In Howe Sound., Amanda Weltman
Salish Sea Ecosystem Conference
Artificial reefs are a conservation tool that can increase biodiversity and habitat complexity in degraded habitats around the world. In some areas, they can be effective at helping to counter stressors such as overfishing by increasing the abundance of coral and fish. In addition to providing habitat, they also provide an opportunity to engage non-scientists in monitoring projects as the public can be involved in both the design and monitoring of these artificial structures. While numerous artificial reef projects exist, many are located in warm tropical waters with limited focus on the role that artificial structures can play for fish …
Seasonal Trends In Cu, Ag And Cd Content In Strait Of Georgia Zooplankton, Bertha Iselle Flores Ruiz
Seasonal Trends In Cu, Ag And Cd Content In Strait Of Georgia Zooplankton, Bertha Iselle Flores Ruiz
Salish Sea Ecosystem Conference
The temporal variations of copper (Cu), silver (Ag) and cadmium (Cd) content in the Strait of Georgia (SoG) zooplankton were measured between 2017 and 2018. We present the first values measured for these trace metals in zooplankton from this region and how they compare with values in other regions in the world. Our results suggest that there are significant seasonal trends in carbon-normalized Ag and Cu contents in zooplankton, and that these two metals tend to increase with increasing zooplankton size. Additionally, the trends on metal content in Ag –a toxic, nonessential metal– are similar to those for Cu-an essential …
Sea Cucumber (Apostichopus Californicus) Culture And Enhancement Opportunities., Andy Suhrbier
Sea Cucumber (Apostichopus Californicus) Culture And Enhancement Opportunities., Andy Suhrbier
Salish Sea Ecosystem Conference
Demand for giant red sea cucumbers (Apostichopus californicus) continues in Asian markets while wild harvest has declined on the west coast of North America. Multiple trials are in place in Washington state to culture this species on upland and floating structures that support other species. Co-culture of sea cucumbers has proved to be effective with mussels, black cod, sea weed and oysters. In addition, there are food resources from aquaculture that the wild population currently exploits but conceivably could utilize more efficiently. Efforts to further this utilization are in progress.
Sediment Sourcing In Cascade Watersheds And Nearshore Dispersal Of Terrestrial Sediment And Contaminants Using Multivariate Geochemical Analysis, Renee Takesue
Salish Sea Ecosystem Conference
Coastal ecosystems require sediment inputs of sufficient quantity and quality to maintain ecological integrity. Identification of sources and processes affecting quality and nearshore dispersal of terrestrial sediment are important considerations for successful habitat restoration and resource management. Sourcing of sediment via geochemical fingerprinting is one way to explore such processes, and appears to be a promising approach in Cascade watersheds where volcanic uplands confer distinct geochemical signatures relative to glacial and marine sediment. A sediment geochemical source-to-sink study using compositional data of the fine fraction was undertaken from the Nooksack River watershed to Bellingham and Samish Bays in March 2019 …