Estrogen Disruption Of Hypothalamic Neural Activity,
2021
Cal Poly Humboldt
Estrogen Disruption Of Hypothalamic Neural Activity, Princess Dickson
Cal Poly Humboldt theses and projects
The brain is highly dependent on the endocrine system for proper neurodevelopment, as it plays a key role in many biological processes. Bisphenol A is a chemical found in plastics that has the potential to mimic the effects of Estrogen in the body, at least weakly. People interact with plastic that contains BPA regularly, and people are at risk for exposure even before being born. The abundance of BPA, along with other exogenous estrogens, makes examining the relationship between early exposure and changes in brain activity imperative. The current study aims to establish a relationship between disrupted estrogen function and …
Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range,
2021
Bemidji State University
Factors Influencing Aquatic Invertebrate Diversity In Mine Pit Lakes Along The Mesabi Iron Range, Jeremy Laurich
Journal of Earth and Life Science
Restoration of mine pit lakes for recreation is going to be very important for the future of Minnesota’s Mesabi Iron Range area. As many as 250 lakes will need to be restored in the future along this 100-kilometer-long swath of mining country. Information regarding the organisms that currently inhabit these lakes is important for future restorations to be a success. The focus of this study was to identify the types of aquatic invertebrates present in pit lakes and to identify some of the factors that influence their abundance and diversity. During this study, invertebrate samples were taken along the shore …
Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?,
2021
Bemidji State University
Is There A Relationship Between Aquatic Vegetation And Amphipod Stocking Mortality?, Alaina Taylor
Journal of Earth and Life Science
Amphipod occurrence and abundance has declined in the Prairie Pothole Region (PPR). Wildlife managers have stocked prairie pothole wetlands with Gammarus lacustris since 2018 to establish self-sustaining populations. G. lacustris have been detected in only 2 of 22 stocked basins, suggesting that they have died or failed to reproduce in most stocking attempts. Aquatic plant surveys were conducted in stocked wetlands and compared to data from surveys of wetlands with naturally occurring populations to understand if G. lacustris would be expected to survive in stocked wetlands based on characteristics of the aquatic vegetation communities. SAV coverage was significantly higher in …
Predicting Total Length Of Fish In Minnesota Lakes Using Bony Structure Dimensions,
2021
Bemidji State University
Predicting Total Length Of Fish In Minnesota Lakes Using Bony Structure Dimensions, Jay Holland
Journal of Earth and Life Science
This study seeks to establish a relationship between a fish’s total length to the size of various bony structures of prey fishes. Three important prey fish species in Minnesota were selected for examination in this study, including Black Crappie Pomoxis nigromaculatus, Bluegill Lepomis macrochirus, and Yellow Perch Perca flavescens. Length and weight dimensions of each fish’s otoliths, cleithra, and vertebrae were associated to total lengths of the fish they came from. In many dietary studies, the need for these relationships is strongly related to the disfigurement or degradation of prey fish in stomach samples. With accurate enough regression equations, researchers …
Abiotic Factors Effect On Summertime Fish Sampling,
2021
Bemidji State University
Abiotic Factors Effect On Summertime Fish Sampling, Kyle Oxley
Journal of Earth and Life Science
Fish surveys are vital in understanding various information about a fishery. Surveys lay the groundwork to how an agency views the status of the fishery, are used to set appropriate regulations, and manage stocking. Understanding which areas of a fishery holds the greatest density of fish is key to achieving the most accurate sample that reflects the fishery. The objective of this study was to track fish densities throughout the summer of 2021 and establish if there is a relationship between high fish density locations and specific water column characteristics. Fish density, temperature, and dissolved oxygen were measured bimonthly at …
Burbot Post-Spawn Diet,
2021
Bemidji State University
Burbot Post-Spawn Diet, Madison Gibson
Journal of Earth and Life Science
Burbots have become an increasingly popular game fish among anglers and have become a strong predator within the systems, consuming a wide variety of organisms. Therefore, the objective of this study was to compare male and female burbots diets post-spawn in a system. Burbots angled from Bad Medicine Lake were sacrificed and the stomach contents were observed, categorized by the lowest taxonomic key, and then weighed in grams. Percent by weight was calculated for each category of organisms and presented in a pie charts. In all three analyses, crustaceans were the main source of the diet structure at more than …
Exploring The Genetic Variability Of Zebra Mussels Dreisenna Polymoprha,
2021
Bemidji State University
Exploring The Genetic Variability Of Zebra Mussels Dreisenna Polymoprha, Maxwell Carr
Journal of Earth and Life Science
Zebra Mussels Dreisenna polymorpha are one of the most well-known invasive species here in the United States. This species can take over watersheds very quickly, causing damage to both the ecosystem and man-made structures. The basic physical behavior of this species has been well documented, but the invasive North American Zebra Mussel is much more aggressive and therefore causes more damage in the Great Lakes region compared to its native waters. Genetic variation may be playing a very large role in how and why D. polymorpha is causing such large problems for stakeholders in the United States. This review cites …
Effectiveness Of Endothall Treatment In Reducing Potamogeton Crispus In Lake Julia,
2021
Bemidji State University
Effectiveness Of Endothall Treatment In Reducing Potamogeton Crispus In Lake Julia, Jake Sorensen
Journal of Earth and Life Science
Curly leaf pondweed Potamogeton crispus, is a submerged aquatic plant non-native to North America. It was most likely introduced when common carp Cyprinus carpio were intentionally brought to the Midwest. Endothall is an aquatic herbicide commonly used to control curlyleaf pondweed in lakes. This study focused on collecting data from Lake Julia in Sherburne County, MN. Lake Julia is treated annually in the spring to control curlyleaf pondweed. The results show treatment areas saw a significant increase in vegetation density compared to control areas (P < 0.01). Changes in percent vegetation coverage by date were insignificant (P = 0.24). No significant signs of fish kills were observed. Because this study looked at overall vegetation coverage instead of specifically curlyleaf pondweed, we cannot conclude the increase in vegetation coverage was from curlyleaf pondweed alone. Based on the results from Poovey et al. (2002) we would expect lower vegetation coverage in treatment areas instead of the increased vegetation coverage observed in our study. This suggests the possibility that the endothall treatment successfully killed curlyleaf pondweed in treated areas, which allowed for new growth of submerged aquatic plants to take place as water temperatures increased.
Bow Lake (Station 3 - Bennett) 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Bow Lake (Station 3 - Bennett) 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Bow Lake, Station 3 Bennett (Barrington and Northwood, NH) for 2021.
Lovell Lake 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Lovell Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Lovell Lake (Sanbornville, NH) for sampling efforts in 2021.
Developmental Influences On The Initial Subjective Rewarding Effects Of Etoh,
2021
Bucknell University
Developmental Influences On The Initial Subjective Rewarding Effects Of Etoh, Madison Waldron
Master’s Theses
The present studies were aimed to better understand developmental contributions to the risk for disordered drinking, and facilitate the long-term goal of developing effective interventions for individuals at high risk for alcohol use disorders. Experiment 1 assessed the effect of adolescent pre-exposure to ethanol on adult place preference, as well as, sex- and beta-endorphin(bE)-related contributions. Adolescent C57BL/6J and bE deficient mice were injected with 1.5g/kg of ethanol or saline and put back into their home cages. At the time of adulthood, we employed a single-exposure conditioned place preference paradigm (SE-CPP) to investigate the impact of preexposure on the initial subjective …
The Effects Of Increasing Positively Charged Metal Ions Within Synovial Fluid,
2021
The University of Akron
The Effects Of Increasing Positively Charged Metal Ions Within Synovial Fluid, Kandisi Anyabwile
Williams Honors College, Honors Research Projects
Osteoarthritis is a degenerative joint disease that affects 10% of men and 13% of women over age of 60. It is the degradation of the cartilage between two bones; obesity, age, overuse, or injury are major contributors to the development of this disease. The joint is incapsulated by the synovial sac filled with a viscous solution that aids in lubrication referred to as synovial fluid. If the synovial sac is ruptured due to injury, positive ions (K+, Na+, Ca2+, and Fe3+) may affect viscoelastic properties within the sac. The purpose of this …
Baboosic Lake 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Baboosic Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Baboosic Lake (Amherst and Merrimack, NH) for 2021.
Province Lake 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Province Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Province Lake (Wakefield, NH and Parsonsfield, ME) for 2021.
Great East Lake 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Great East Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Great East Lake (Wakefield, NH; Acton , ME) for sampling efforts in 2021.
Belleau Lake 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Belleau Lake 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Belleau Lake in Wakefield, NH for 2021.
Balch Pond 2021 Water Quality Highlight Report,
2021
University of New Hampshire, Durham
Balch Pond 2021 Water Quality Highlight Report, Amanda Mcquaid, Robert Craycraft
UNH Cooperative Extension
A Water Quality Highlight Report by UNH CE Lakes Lay Monitoring Program for Balch Pond (Wakefield, NH; Acton and Newfield, ME) for sampling efforts up to 2021.
There’S More Than One Way To Beat The Heat: What Anal Probes Reveal About Thermal Responses In Neotropical Beetles (Coleoptera: Cerambycidae).,
2021
CUNY City College
There’S More Than One Way To Beat The Heat: What Anal Probes Reveal About Thermal Responses In Neotropical Beetles (Coleoptera: Cerambycidae)., Emilie I. Dion
Dissertations and Theses
Increasing global temperatures have been linked to shifts in the distributions and preferred microhabitats of terrestrial species. This trend is predicted to impact tropical forest insects, which may already be exposed to conditions that bring them close to their thermal maxima. Tropical microhabitats are linked to vertical stratification, because the canopy is hotter, winder, and less humid than the ground. In ectothermic organisms, such as beetles, thermoregulation is dependent on morphological and behavioral traits. This study investigates woodboring cerambycid beetles, to determine how behavioral thermoregulation through microhabitat selection (vertical stratification) is correlated to morphological attributes (color lightness, size, and pubescence) …
Influence Of 2,5-Dimethoxy-4-Iodoamphetamine (Doi) On Ethanol Preference And Consumption In C57bl/6 Male Mice,
2021
Virginia Commonwealth University
Influence Of 2,5-Dimethoxy-4-Iodoamphetamine (Doi) On Ethanol Preference And Consumption In C57bl/6 Male Mice, Alaina M. Jaster, Sam Gottlieb, Michael Miles, Javier González-Maeso
Graduate Research Posters
Substance use disorders (SUD) account for a large number of mental health diagnosis in the United States and around the world. Approximately 13.6 million adults 26 or older and 5.1 million young adults (ages 18-24) battled with a SUD in 2017. Alcohol Use Disorder (AUD) alone effects nearly 6% of the adult population within the United States. This creates a substantial burden on the individual, with alcohol being the third-leading cause of preventable death in the United States. Few treatments for AUD exist, with no new FDA-approved therapeutic treatments within the last 15 years. Additionally, the limited treatments we do …
Manipulating The Perineuronal Net In The Deep Cerebellar Nucleus,
2021
West Virginia University
Manipulating The Perineuronal Net In The Deep Cerebellar Nucleus, Deidre E. O'Dell
Graduate Theses, Dissertations, and Problem Reports (ETD)
Perineuronal nets (PNN) are a type of specialized extracellular matrix in the central nervous system. The PNN forms during postnatal development but the ontogeny of the PNN has yet to be elucidated. Studying the PNN in the rat brain may allow us to further understand the PNN’s role in development, learning, and memory. The PNN is fully developed in the deep cerebellar nuclei (DCN) of rats by post-natal day 18. By using enzymatic digestion of the PNN with chondroitinase ABC (ChABC), we studied how digestion of the PNN affects cerebellar-dependent eyeblink conditioning (EBC) and performed electrophysiological recordings from DCN neurons. …
