Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae,
2023
Edith Cowan University
Elevated Estuary Water Temperature Drives Fish Gut Dysbiosis And Increased Loads Of Pathogenic Vibrionaceae, Alessandra L. Suzzi, Michael Stat, Troy F. Gaston, Nachshon Siboni, Nathan L. R. Williams, Justin R. Seymour, Megan J. Huggett
Research outputs 2022 to 2026
Marine water temperatures are increasing globally, with eastern Australian estuaries warming faster than predicted. There is growing evidence that this rapid warming of coastal waters is increasing the abundance and virulence of pathogenic members of the Vibrionaceae, posing a significant health risk to both humans and aquatic organisms. Fish disease, notably outbreaks of emerging pathogens in response to environmental perturbations such as heatwaves, have been recognised in aquaculture settings. Considerably less is known about how rising sea surface temperatures will impact the microbiology of wild fish populations, particularly those within estuarine systems that are more vulnerable to warming. We used …
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment,
2023
Nebraska Game and Parks Commission
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment, Melissa J. Panella, Colleen Rothe-Groleau
Nebraska Game and Parks Commission: Publications
The primary goal in development of at-risk species conservation assessments is to compile biological and ecological information that may assist conservation practitioners in making decisions regarding the conservation of species of interest. The Nebraska Natural Legacy Project recognizes the Blanding’s turtle (Emydoidea blandingii) as a Tier 1 at-risk species. Some general management recommendations are made here regarding Blanding’s turtles; however, conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk turtle that will aid in the decision-making …
An Evaluation Of Avian Influenza Virus Whole-Genome Sequencing Approaches Using Nanopore Technology,
2023
USGS National Wildlife Health Center
An Evaluation Of Avian Influenza Virus Whole-Genome Sequencing Approaches Using Nanopore Technology, Hon S. Ip, Sarah Uhm, Mary Lea Killian, Mia K. Torchetti
United States Department of Agriculture Wildlife Services: Staff Publications
As exemplified by the global response to the SARS-CoV-2 pandemic, whole-genome sequencing played an important role in monitoring the evolution of novel viral variants and provided guidance on potential antiviral treatments. The recent rapid and extensive introduction and spread of highly pathogenic avian influenza virus in Europe, North America, and elsewhere raises the need for similarly rapid sequencing to aid in appropriate response and mitigation activities. To facilitate this objective, we investigate a next-generation sequencing platform that uses a portable nanopore sequencing device to generate and present data in real time. This platform offers the potential to extend in-house sequencing …
Refining The Moose Serum Progesterone Threshold To Diagnose Pregnancy,
2023
University of Minnesota - Twin Cities
Refining The Moose Serum Progesterone Threshold To Diagnose Pregnancy, Madeline Struck, William J. Severud, Yvette M. Chenaux-Ibrahim, Edmund J. Isaac, Janine L. Brown, Seth A. Moore, Tiffany M. Wolf
Natural Resource Management Faculty Publications
Pregnancy determination is necessary for sound wildlife management and understanding population dynamics. Pregnancy rates are sensitive to environmental and physiological factors and may indicate the overall trajectory of a population. Pregnancy can be assessed through direct methods (rectal palpation, sonography) or indicated using hormonal assays (serum progesterone or pregnancy-specific protein B, fecal progestogen metabolites). A commonly used threshold of 2 ng/ml of progesterone in serum has been used by moose biologists to indicate pregnancy but has not been rigorously investigated. To refine this threshold, we examined the relationship between progesterone concentrations in serum samples and pregnancy in 87 moose ( …
American Eel (Anguilla Rostrata) And Other Fishes As Surveyed By Environmental Dna In The Bronx River And Hudson River Watershed,
2023
CUNY Graduate Center
American Eel (Anguilla Rostrata) And Other Fishes As Surveyed By Environmental Dna In The Bronx River And Hudson River Watershed, Sam C. Chin
Dissertations, Theses, and Capstone Projects
Mounting an effective response to the threats faced by freshwater fish may require expansions to aquatic biomonitoring in excess of what is feasible using the capture-based survey techniques currently relied upon by natural resource managers. Methods for analyzing environmental DNA (eDNA) are emerging as a minimally invasive and cost-effective approach for surveying fish and other organisms. By detecting taxon-specific DNA sequences recovered from environmental samples (e.g. water, sediment), eDNA methods are able to infer species presence from samples that can be collected rapidly with simple equipment. In many cases, eDNA detection rates of fish species have been shown to meet …
A Statistical Analysis Of The Change In Age Distribution Of Spawning Hatchery Salmon,
2023
University of Portland
A Statistical Analysis Of The Change In Age Distribution Of Spawning Hatchery Salmon, Rachel Macaulay, Emily Barrett, Grace Penunuri, Eli E. Goldwyn
Spora: A Journal of Biomathematics
Declines in salmon sizes have been reported primarily as a result of younger maturation rates. This change in age distribution poses serious threats to salmon-dependent peoples and ecological systems. We perform a statistical analysis to examine the change in age structure of spawning Alaskan chum salmon Oncorhynchus keta and Chinook salmon O. tshawytscha using 30 years of hatchery data. To highlight the impacts of this change, we investigate the average number of fry/smolt that each age of spawning chum/Chinook salmon produce. Our findings demonstrate an increase in younger hatchery salmon populations returning to spawn, and fewer amounts of fry produced …
Landscape And Site Factors Drive Invasive Phragmites Management And Native Plant Recovery Across Chesapeake Bay Wetlands,
2023
Utah State University
Landscape And Site Factors Drive Invasive Phragmites Management And Native Plant Recovery Across Chesapeake Bay Wetlands, Christine B. Rohal, Eric L. G. Hazelton, Eliza K. Mcfarland, Rebekah Downard, Melissa K. Mccormick, Dennis F. Whigham, Karin M. Kettenring
Watershed Sciences Student Research
Successful invasive plant management—where invaders are sufficiently reduced and diverse native plant communities recover—remains an elusive goal for land managers. The site- and landscape-scale drivers of variable management outcomes and vegetation recovery are poorly understood due to a lack of rigorous experiments that characterize longer term vegetation trends across contexts. We present the results of a five-year experiment across eight subestuaries of Chesapeake Bay, representing a gradient of watersheds with differing dominant land-use types and anthropogenic impacts, to evaluate invasive and native plant response to herbicide management. The focal invader, Phragmites australis (common reed), is one of the most aggressive …
Fire Impacts And Dynamics Of Seasonally Dry Tropical Forest Of East Java, Indonesia,
2023
Edith Cowan University
Fire Impacts And Dynamics Of Seasonally Dry Tropical Forest Of East Java, Indonesia, Sutomo, Eddie J. B. Van Etten
Research outputs 2022 to 2026
Background: Seasonally dry tropical forests (SDTFs) are globally important ecosystems which receive less research attention compared to tropical rainforests but are equally under serious threat. The objectives of this paper are to characterize the vegetation structure, diversity and composition of SDTF of Baluran National Park, East Java, Indonesia, and to assess the impact of burning this SDTF and its post-fire recovery. Methods: In the field, we measured floristic composition and dominance at sites with different fire histories in both SDTF and adjacent savannas of Baluran. Remote sensing image analysis was also employed using the MODIS burn area product and various …
Assessing The Unionid Assemblage Of The Robert C. Byrd Pool, Ohio River,
2023
Marshall University
Assessing The Unionid Assemblage Of The Robert C. Byrd Pool, Ohio River, Ethan Hunter Bellamy
Theses, Dissertations and Capstones
Unionid mussels are the most imperiled taxa in the United States and are vastly understudied. The entire Robert C. Byrd (RCB) pool of the Ohio River is the study area. I selected sites from the 2019 and 2013 ORSANCO RCB pool assessments that utilize random site selection across the pool. I used SCUBA to survey and collect data on unionid diversity, reproduction, and habitat. I collected 1,083 individuals over 19 species in RCB pool. I compared results from RCB pool survey to two similar surveys conducted in Greenup Pool. Both richness and abundance in the Upper Section of Greenup Pool …
Characterizing The Vegetation And Effects Of Climate Change On Parris Island, A Sea Island Ecosystem,
2023
Marshall University
Characterizing The Vegetation And Effects Of Climate Change On Parris Island, A Sea Island Ecosystem, Cody Hart Goodson
Theses, Dissertations and Capstones
Coastal habitats provide many ecosystem services, protecting coastlines from storm surges and erosion, diminishing the effects of eutrophication, sequestering large amounts of carbon, and acting as vital wildlife habitat. Sea-level rise and increased storm surge intensity associated with climate change are increasingly disrupting coastal habitats. These disturbances can shift environmental gradients that drive the zonation of coastal vegetation types, driving habitat conversion. Monitoring coastal habitat conversion can improve our understanding of the dynamic effects of climate change on these landscapes. Therefore, our objectives for chapter 1 were to identify and describe the distributions of vegetation types present on Marine Corps …
An Analysis Of The Preferences, Morphometrics, And Survey Efficacy Of The Freshwater Mussel Community In The Greenup Pool, Ohio River,
2023
Marshall University
An Analysis Of The Preferences, Morphometrics, And Survey Efficacy Of The Freshwater Mussel Community In The Greenup Pool, Ohio River, Jacob Miller
Theses, Dissertations and Capstones
The Greenup Pool is one of the most unique pools of the Ohio River in terms of habitat richness and anthropogenic impact both historical and current. The Greenup Pool spans 61.8 miles reaching from Greenup Dam in Greenup, KY to Robert C. Byrd Dam in Apple Grove, WV. We surveyed 17 sites to assess mussel communities within the Greenup Pool using the 2017 West Virginia Mussel Survey Protocol. At these sites, six 100-meter transects were surveyed for surface and subsurface mussels. Each transect was divided into 10-meter intervals. These surveys resulted in 4,041 live individuals from 21 species, including eight …
Hitting The Sweet Spot: Optimizing Camera Trapping Effort For Estimating Biodiversity In Coastal Environments,
2023
Old Dominion University
Hitting The Sweet Spot: Optimizing Camera Trapping Effort For Estimating Biodiversity In Coastal Environments, Ella Dipetto, Oleksii Dubovyk, Chi Wei, Angela Brierly, Eric Walters, Alex Teodorescu, Jillian Murphy
College of Sciences Posters
Wildlife trail cameras, or “camera traps”, have become an effective tool in ecological research and conservation management across a variety of ecosystems to monitor a wide range of taxa. Camera trapping allows for extended survey time in traditionally hard-to-survey environments and has greatly increased our ability to detect cryptic species. One question ecologists commonly face is how much sampling effort is required to accurately estimate community composition. Despite the abundant literature that uses camera trapping techniques, few studies have occurred in coastal saltmarsh ecosystems. These ecosystems are being lost at a rapid rate from land conversion, pollution, and other anthropogenic …
Do Channel Catfish Consume Zebra Mussels?,
2023
Bemidji State University
Do Channel Catfish Consume Zebra Mussels?, Casey M. Myers
Journal of Earth and Life Science
Channel catfish Ictalurus punctatus are a generalized opportunistic feeder with a wide range of diet compositions. In the Midwest, zebra mussels Dreissena polymorpha have quickly spread, causing large effects on aquatic ecosystems structures and functions. Channel catfish are known to consume native mollusks, however, little research has been done on the potential predation of zebra mussels by channel catfish. Therefore, the objective of this study was to analyze channel catfish diets to determine if zebra mussels are consumed. The channel catfish were obtained from the Sauk River chain of lakes between the dates of 14 June and 28 July 2023. …
Sheep Ingestive Behavior And Tannin Selection In Pampa Grassland And Feedlot,
2023
Utah State University
Sheep Ingestive Behavior And Tannin Selection In Pampa Grassland And Feedlot, Marina Terra Braga
Green Canyon Environmental Research Area, Logan Utah
The Pampa grassland biome has high plant biodiversity, some with significant secondary compound concentrations such as tannins. Tannin inclusion in ruminant diets may improve meat quality and productivity. However, voluntary intake of this phenolic compound can be a challenge. This dissertation includes three studies within this context. The first study documented whether sheep consume tannin-rich Desmodium incanum (DI), the most common Pampa herbaceous legume species. The second study evaluated how forage tannin and protein concentration influenced sheep feedlot feed selection and the diet affects performance parameters. The third study evaluated sheep feeding behavior in a Pampa native pasture, and how …
Multi-Scale Adaptive Management Of Social-Ecological Systems,
2023
University of Nebraska - Lincoln
Multi-Scale Adaptive Management Of Social-Ecological Systems, A. Garmestani, Craig R. Allen, D. G. Angeler, L. Gunderson, J. B. Ruhl
School of Natural Resources: Documents and Reviews
No abstract provided.
Local-Scale Impacts Of Water Hyacinth On Water Quality In A Hypereutrophic Lake,
2023
University of Nebraska - Lincoln
Local-Scale Impacts Of Water Hyacinth On Water Quality In A Hypereutrophic Lake, J. R. Corman, A. Z. Roegner, Z. Ogari, T. R. Miller, C. M. Aura
School of Natural Resources: Documents and Reviews
No abstract provided.
Spatiotemporal Analysis Of Extreme Precipitation In The Southern Great Plains Hydroclimate Region,
2023
University of Nebraska - Lincoln
Spatiotemporal Analysis Of Extreme Precipitation In The Southern Great Plains Hydroclimate Region, P. Flanagan, R. Mahmood
School of Natural Resources: Documents and Reviews
No abstract provided.
Resilience Theory And Coerced Resilience In Agriculture,
2023
University of Nebraska - Lincoln
Resilience Theory And Coerced Resilience In Agriculture, S. M. Sundstrom, D. G. Angeler, C. R. Allen
School of Natural Resources: Documents and Reviews
No abstract provided.
Storms And Ph Of Dam Releases Affects Downstream Phosphorus Cycling In An Arid Regulated River,
2023
University of Nebraska - Lincoln
Storms And Ph Of Dam Releases Affects Downstream Phosphorus Cycling In An Arid Regulated River, B. R. Deemer, R. H. Reibold, A. Fatta, J. R. Corman, C. B. Yackulic, S. C. Reed
School of Natural Resources: Documents and Reviews
No abstract provided.
Modified Tracer Gas Injection For Measuring Stream Gas Exchange Velocity In The Presence Of Significant Temperature Variation,
2023
University of Nebraska - Lincoln
Modified Tracer Gas Injection For Measuring Stream Gas Exchange Velocity In The Presence Of Significant Temperature Variation, C. R. Jensen, D. P. Genereux, T. E. Gilmore, D. K. Solomon
School of Natural Resources: Documents and Reviews
No abstract provided.
