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.
Characterization Of Particulate Size Distributions And Water-Soluble Ions Measured At A Broiler Farm,
2023
University of Nebraska - Lincoln
Characterization Of Particulate Size Distributions And Water-Soluble Ions Measured At A Broiler Farm, P. J. Silva, T. Cress, R. Drover, C. Michael, G. Docekal, P. Larkin, A. Godoy, D. A. Cavero, C. Sin, J. Waites, Rezaul Mamood, M. Cohron, K. L. Purvis-Roberts
School of Natural Resources: Documents and Reviews
No abstract provided.
Mapping Accuracy Of Close-Range Terrestrial Digital Photogrammetry,
2023
University of Nebraska - Lincoln
Mapping Accuracy Of Close-Range Terrestrial Digital Photogrammetry, Y. Zhou, C. B. Weerasekara, A, Y, Sheshukov
School of Natural Resources: Documents and Reviews
No abstract provided.
What Are You Doing Here? Unexpected Occurrences Of Knobfin Sculpins (Cottus Immaculatus) In Connecticut,
2023
Michigan Department of Environment
What Are You Doing Here? Unexpected Occurrences Of Knobfin Sculpins (Cottus Immaculatus) In Connecticut, Joshua M. Tellier, Brooke Winsmann, Michael Humphreys, Stella Minoudi, Alexandros Triantafyllidis, Eric T. Schultz
EEB Articles
Reductions in cold-water habitat owing to anthropogenic stressors are focusing attention on indicator fish species. We investigated an apparent range expansion in Connecticut of a native cold-water fish, Slimy Sculpin (Cottus cognatus). Unexpectedly, genetic and morphological analyses identified the new population as a non-native cottid from the Ozark region, the Knobfin Sculpin (C. immaculatus). This is the first record of C. immaculatus outside of its native range. The new occurrences were not recognized for over a decade despite comprehensive watershed inventories by state natural resource managers. The mechanism by which the non-native Knobfin Sculpin first arrived in Connecticut is currently …
Effect Of Initial Infestation Of Zebra Mussels On Freshwater Drum Diets In Red Lake, Mn,
2023
Bemidji State University
Effect Of Initial Infestation Of Zebra Mussels On Freshwater Drum Diets In Red Lake, Mn, Marissa M. Pribyl
Journal of Earth and Life Science
Zebra mussel Dreissena polymorpha veligers were first found in the Red Lake system in Beltrami County in 2017, however no adult zebra mussels have been documented. When zebra mussels first invade a system, fish often switch their prey use to this new abundant resource. Freshwater drum Aplodinotus grunniens is one of these fish species known to consume physidae and bivalves, including zebra mussels, using pharyngeal teeth, the molar-like grinders in the back of their throats. This research aims to identify any presence of adult zebra mussels in the system and determine freshwater drum diet composition and feeding patterns by analyzing …
A Gis Look At Woody Plant Encroachment (Wpe): Mapping Grassland Degradation Through Habitat Succession,
2023
University of Denver
A Gis Look At Woody Plant Encroachment (Wpe): Mapping Grassland Degradation Through Habitat Succession, Brandon M. Wolf
Geography and the Environment: Graduate Student Capstones
The grasslands of North America remain at a fraction of their historic range. Estimates of acreage remaining vary between 4% and 13%. Affectionately known as the Great Plains, these grasslands have been converted for agriculture, rangeland, infrastructure, and civilization itself. Woody Plant Encroachment (WPE) on the grasslands is a silent, often overlooked, serious threat. The use of a simple GIS can estimate current acreage of a grassland, its adjacent woodland corridor, riparian buffers, and predict future acreage based on trends and hypothetical management scenarios, or lack thereof. The American prairie, though a remnant of its former self, is still home …
Identifying Stable Isotope Patterns Among Taxa, Sites, And Environmental Variables In The Eastern Mississippi Sound,
2023
Athens State University
Identifying Stable Isotope Patterns Among Taxa, Sites, And Environmental Variables In The Eastern Mississippi Sound, Evan C. Marth, Carl S. Cloyed, Ruth H. Carmichael
Gulf and Caribbean Research
No abstract provided.
Have Rusty Crayfish Affected The Diets Of Yellow Perch?,
2023
Bemidji State University
Have Rusty Crayfish Affected The Diets Of Yellow Perch?, Matthew D. Kvam
Journal of Earth and Life Science
Freshwater ecosystems are some of the most susceptible to invasive species. It is one of the reasons they face the highest levels of species endangerment. Rusty crayfish Faxonius rusticus are one such invasive species, they fragment food webs and negatively affect native species. However, it seems as though native species are beginning to rely on them as a source of food. Yellow perch Perca flavescens, an important forage and game species, is one such species that is highly affected by these invasions. At smaller sizes yellow perch primarily feed on invertebrates whose populations are degraded by rusty crayfish. Therefore, the …
The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity,
2023
Old Dominion University
The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity, Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane
OES Faculty Publications
It is widely assumed that phytoplankton abundance and productivity decline during temperate winters because of low irradiance and temperatures. However, winter phytoplankton blooms commonly occur in temperate estuaries, but they are often undocumented because of reduced water quality monitoring in winter. The small body of in situ work that has been done on winter blooms suggests they can be of enormous consequence to ecosystems. However, because monitoring is often reduced or stopped altogether during winter, it is unclear how widespread these blooms are or how long they can last. We analyzed an over 30-year record of monthly phytoplankton monitoring samples …
Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean,
2023
Old Dominion University
Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams
OES Faculty Publications
Constraining the role of dust deposition in regulating the concentration of the essential micronutrient iron in surface ocean waters requires knowledge of the flux of seawater-soluble iron in aerosols and the replacement time of dissolved iron (DFe) in the euphotic zone. Here we estimate these quantities using seasonally resolved DFe data from the Bermuda Atlantic Time-series Study region and weekly-scale measurements of iron in aerosols and rain from Bermuda during 2019. In response to seasonal changes in vertical mixing, primary production and dust deposition, surface DFe concentrations vary from ∼0.2 nM in early spring to >1 nM in late summer, …
A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives,
2023
University of California - San Diego
A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives, Angela M. Kuhn, Matthew Mazloff, Stephanie Dutkiewicz, Oliver Jahn, Sophie Clayton, Tatiana Rynearson, Andrew D. Barton
OES Faculty Publications
The California Current System is a diatom‐dominated region characterized by seasonal coastal upwelling and additional elevated mesoscale activity. Cyclonic mesoscale eddies in the region trap productive coastal waters with their planktonic communities and transport them offshore with limited interaction with surrounding waters, effectively acting as natural mesocosms, where phytoplankton populations undergo ecological succession as eddies age. This study examines diatom community composition within two mesoscale cyclonic eddies that formed in the same region of the California Current System 2 months apart and in the California Current waters surrounding them. The diatom communities were analyzed in the context of shifting environmental …
