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Articles 4771 - 4800 of 36398
Full-Text Articles in Entire DC Network
Legal Recognition Of Animal Sentience: The Case For Cautious Optimism, Jane Kotzmann
Legal Recognition Of Animal Sentience: The Case For Cautious Optimism, Jane Kotzmann
Animal Sentience
Rowan et al.’s target article provides a valuable indication of the work that was required to reach the point where animals are recognised as sentient in various laws. To ensure this work was not in vain, the language of sentience needs to be used as a moral currency to demand further cultural change involving greater human respect for animals.
A Survey Of The Solitary Native Bees Of The Leach Botanical Garden, And Their Floral Associations, Joshua Page
A Survey Of The Solitary Native Bees Of The Leach Botanical Garden, And Their Floral Associations, Joshua Page
Biology Undergraduate Honors Theses
Solitary native bees are known to be diverse, but are not well studied in Oregon. In order to identify the bee genera present in the Leach Botanical Garden, and their floral usage, a survey was conducted over 2020 and 2021. Biweekly sampling was used to collect bees on flowers, in order to obtain floral usage data. Bees were identified to genus with published taxonomic keys. In total, 19 genera of bees were found. Bee abundance fit a normal distribution, and peaked in July. Ceratina and Lasioglossum were a significant proportion of the population, and were present in the garden from …
Temporal Stability Of Seagrass Extent, Leaf Area, And Carbon Storage In St. Joseph Bay, Florida: A Semi-Automated Remote Sensing Analysis, Marie Cindy Lebrasse, Blake A. Schaeffer, Megan M. Coffer, Peter J. Whitman, Richard C. Zimmerman, Victoria J. Hill, Kazi A. Islam, Jiang Li, Christopher L. Osburn
Temporal Stability Of Seagrass Extent, Leaf Area, And Carbon Storage In St. Joseph Bay, Florida: A Semi-Automated Remote Sensing Analysis, Marie Cindy Lebrasse, Blake A. Schaeffer, Megan M. Coffer, Peter J. Whitman, Richard C. Zimmerman, Victoria J. Hill, Kazi A. Islam, Jiang Li, Christopher L. Osburn
OES Faculty Publications
Seagrasses are globally recognized for their contribution to blue carbon sequestration. However, accurate quantification of their carbon storage capacity remains uncertain due, in part, to an incomplete inventory of global seagrass extent and assessment of its temporal variability. Furthermore, seagrasses are undergoing significant decline globally, which highlights the urgent need to develop change detection techniques applicable to both the scale of loss and the spatial complexity of coastal environments. This study applied a deep learning algorithm to a 30-year time series of Landsat 5 through 8 imagery to quantify seagrass extent, leaf area index (LAI), and belowground organic carbon (BGC) …
Imaging Technologies Build Capacity And Accessibility In Phytoplankton Species Identification Expertise For Research And Monitoring: Lessons Learned During The Covid-19 Pandemic, Sophie Clayton, Leah Gibala-Smith, Kathryn Mogatas, Chanel Flores-Vargas, Kayla Marciniak, Maci Wigginton, Margaret R. Mulholland
Imaging Technologies Build Capacity And Accessibility In Phytoplankton Species Identification Expertise For Research And Monitoring: Lessons Learned During The Covid-19 Pandemic, Sophie Clayton, Leah Gibala-Smith, Kathryn Mogatas, Chanel Flores-Vargas, Kayla Marciniak, Maci Wigginton, Margaret R. Mulholland
OES Faculty Publications
As primary producers, phytoplankton play an integral role in global biogeochemical cycles through their production of oxygen and fixation of carbon. They also provide significant ecosystem services, by supporting secondary production and fisheries. Phytoplankton biomass and diversity have been identified by the Global Ocean Observing System (GOOS) as Essential Ocean Variables (EOVs), properties that need to be monitored to better understand and predict the ocean system. Phytoplankton identification and enumeration relies on the skills and expertise of highly trained taxonomic analysts. The training of new taxonomic analysts is intensive and requires months to years of supervised training before an analyst …
Oregon State Rank Assessment For Cascade Torrent Salamander (Rhyacotriton Cascadae), Eleanor P. Gaines
Oregon State Rank Assessment For Cascade Torrent Salamander (Rhyacotriton Cascadae), Eleanor P. Gaines
Institute for Natural Resources Publications
Oregon state conservation status assessment for Cascade torrent salamander (Rhyacotriton cascadae) using NatureServe methodology, 2022
Oregon State Rank Assessment For Cope's Giant Salamander (Dicamptodon Copei), Eleanor P. Gaines
Oregon State Rank Assessment For Cope's Giant Salamander (Dicamptodon Copei), Eleanor P. Gaines
Institute for Natural Resources Publications
Oregon state conservation status assessment for Cope's giant salamander (Dicamptodon copei) using NatureServe methodology, 2022.
Assessing The Behavioral Response Of Westslope Cutthroat Trout To Olfactory Cues In A Two-Choice Y-Maze, Hannah Marie Condron
Assessing The Behavioral Response Of Westslope Cutthroat Trout To Olfactory Cues In A Two-Choice Y-Maze, Hannah Marie Condron
EWU Masters Thesis Collection
The goal of this study was to determine which olfactory cues were most attractive to Westslope Cutthroat Trout Oncorhynchus clarkii lewisi (WCT) in a two-choice Y-maze. WCT used in this study were from Kings Lake and Paqua Creek in Pend Oreille County, Washington, and tested in 2018 and 2019. The different odorants tested in this study were population-specific pheromones produced by WCT from the same population, conspecific pheromones produced by WCT from the second population, and water obtained from each population’s natal stream. The water Kings Lake WCT were reared in for one year at the Spokane Hatchery was also …
A Review Of The Alien Fishes Of Turkish Inland Waters, Erdoğan Çi̇çek, Soheil Eagderi, Sevi̇l Sungur
A Review Of The Alien Fishes Of Turkish Inland Waters, Erdoğan Çi̇çek, Soheil Eagderi, Sevi̇l Sungur
Turkish Journal of Zoology
Aquaculture, recreational fishing, restocking, biological control, and the ornamental fish trade have increased the number of nonnative fish in Turkish inland waters. This work reviews the history, current state, and tendencies of fish introductions into Turkish freshwaters. To date, it is known that a total of 34 exotic species (except two marine and three misidentified species) have been introduced deliberately or accidentally into Turkish inland waters, of which, only 19 species have been established in wild ecosystems. A total of five acclimatized species, viz. Coregonus lavaretus, C. macrophthalmus, Salmo salar, Salvelinus alpinus, and S. fontinalis and four species, viz. Hypophthalmichthys …
Length-Weight Relationships Of 28 Fish Species Caught From Demersal Trawl Survey In Themiddle Black Sea, Turkey, Murat Dağteki̇n, Yaşar Genç, Nazli Kasapoğlu, Gökhan Eri̇k, Devri̇m Seli̇m Misir, Sali̇h İlhan, Meltem Ok, Cemi̇l Altuntaş, Uğur Özsandikçi, Ferhat Büyükdeveci̇, Tuğba Kaya, Ayşe Cebeci̇, Asi̇ye Nur Saltan, Ati̇la Haşi̇moğlu, Şi̇ri̇n Fi̇ri̇di̇n
Length-Weight Relationships Of 28 Fish Species Caught From Demersal Trawl Survey In Themiddle Black Sea, Turkey, Murat Dağteki̇n, Yaşar Genç, Nazli Kasapoğlu, Gökhan Eri̇k, Devri̇m Seli̇m Misir, Sali̇h İlhan, Meltem Ok, Cemi̇l Altuntaş, Uğur Özsandikçi, Ferhat Büyükdeveci̇, Tuğba Kaya, Ayşe Cebeci̇, Asi̇ye Nur Saltan, Ati̇la Haşi̇moğlu, Şi̇ri̇n Fi̇ri̇di̇n
Turkish Journal of Zoology
This study provides updated the length-weight relationships and Fulton's condition factor of 28 fish species belonging to 23 families from the Black Sea. Samples were collected along the depths between 0-100 meters by demersal trawl surveys conducted seasonally from May 2017 to September 2019. A total of 83,885 specimens were collected. The length-weight relationships and Fulton's condition factor, minimum, maximum and mean lengths, total weights, descriptive statistics, and growth type were provided for all the species. The results indicate that LWR parameters of b varied from 2.2039 to 3.737 and Fulton's condition factor varied between 0.004 and 1.18. These findings …
An Updated And Annotated Checklist Of The Malacostraca (Crustacea) Species Inhabitedturkish Inland Waters, Mehmet İpek, Murat Özbek
An Updated And Annotated Checklist Of The Malacostraca (Crustacea) Species Inhabitedturkish Inland Waters, Mehmet İpek, Murat Özbek
Turkish Journal of Zoology
The current status and annotated checklist of fresh- and brackish-water amphipod species inhabiting the inland waters (streams, lakes, ponds, lagoons, subterranean waters, etc.) of Turkey is presented. Totally, 171 papers, 3 books, 3 book chapters, 5 conference papers, 2 projects, 3 PhD and 3 MSc thesis were examined in the present study. As the result of the previous records, 201 taxa comprising 121 amphipods (16 families, 31 genera), 27 isopods (9 families, 13 genera), 9 mysids (1 family, 5 genera), 4 tanaids (3 families, 4 genera) and 40 decapods (16 families, 18 genera) were compiled. All the previously recorded localities …
Fish Biodiversity In Zhanjiang Mangroves National Nature Reserve, China, Juan Lei, Yongyan Liao, Wei Tang, Dong Xie, Teng Wang, Wen Xiong, Peter A. Bowler
Fish Biodiversity In Zhanjiang Mangroves National Nature Reserve, China, Juan Lei, Yongyan Liao, Wei Tang, Dong Xie, Teng Wang, Wen Xiong, Peter A. Bowler
Turkish Journal of Zoology
China's mangroves provide important habitat for many endangered fish species, but, there has been little research upon the diversity and the distribution of fish species within mangroves habitats. To compile an inventory of fish fauna in this field, a total of 14 ichthyological surveys were conducted in Zhanjiang Mangrove during different seasons between August 2016 and December 2019. A total of 208 fish species have identified belonging to 18 orders, 69 families and 142 genera from Zhanjiang Mangroves National Nature Reserve, the largest mangrove habitat in China. Of these 17 species are listed as threatened species in the IUCN Red …
Marine Mucilage In The Sea Of Marmara And Its Effects On The Marine Ecosystem: Mass Deaths, Uğur Karadurmuş, Mustafa Sari
Marine Mucilage In The Sea Of Marmara And Its Effects On The Marine Ecosystem: Mass Deaths, Uğur Karadurmuş, Mustafa Sari
Turkish Journal of Zoology
In April of 2021, there was a massive explosion of marine mucilage in the Sea of Marmara, as a result, many invertebrates of marine communities suffered mass mortality. We summarize our results about the devastating effect of mucilage bloom on mass deaths in the Sea of Marmara. The phenomena were lethal to the pelagic fishes and crustaceans, and individuals were impacted severely smothered by mucilage or anoxia. Mucilage accumulations have shown their effectiveness in many areas around the Kapıdağ Peninsula. Misakça, Şirinçavuş, Narlı, and Tatlısu regions, where mass death cases occurred, were selected as study areas, and these areas are …
Earthworm Community Structure Along Altitudinal Gradients On The Western Slopes Ofkopaonik Mountain In Serbia, Filip Popovic, Mirjana Stojanovic, Slobodanka Radosavljevic, Tanja Trakic, Jovana Sekulic
Earthworm Community Structure Along Altitudinal Gradients On The Western Slopes Ofkopaonik Mountain In Serbia, Filip Popovic, Mirjana Stojanovic, Slobodanka Radosavljevic, Tanja Trakic, Jovana Sekulic
Turkish Journal of Zoology
The aim of this study is to examine the altitudinal patterns of earthworm community structure at different habitat types on the western slopes of Kopaonik Mountain. In total, 30 plots between 420 and 1950 m a.s.l. were sampled within two years' fieldwork. Overall, 27 earthworm taxa belonging to 11 genera were found at the study sites. A combination of Pearson's correlation, polynomial regression, and cluster analysis (UPGMA) was used for determining the effects of altitude on the earthworm community structure. The earthworm abundance and species richness monotonically decreased with the increase in altitude, showing a significant negative correlation. Cluster analysis …
Density, Diversity, And Seasonal Fluctuations In Soil Collembola In Three Differentlymanaged Ecosystems In North Khorasan, Iran, Mahmood Mehrafrooz Mayvan, Hussein Sadeghi Namaghi, Masoumeh Shayanmehr, Penelope Greenslade, Grant Palmer
Density, Diversity, And Seasonal Fluctuations In Soil Collembola In Three Differentlymanaged Ecosystems In North Khorasan, Iran, Mahmood Mehrafrooz Mayvan, Hussein Sadeghi Namaghi, Masoumeh Shayanmehr, Penelope Greenslade, Grant Palmer
Turkish Journal of Zoology
We examined the density, diversity, and seasonal fluctuation of soil inhabiting Collembola in different ecosystems: agricultural, rangeland, and forest ecosystems in the North Khorasan province of Iran from June 2018 to May 2019. The sampling program was conducted monthly on the three sites. Density was measured on the number of individuals per square meter. Species diversity was calculated using Shannon?Wiener index, Simpson?s diversity, and species richness by Rarefaction method. Fifty-three species belonging to 42 genera and 17 families were collected and identified. The density of Collembola in the forest was higher than in either rangeland or agroecosystem. Highest densities were …
Evolutionary Relationships Among Several Species From The Genus Cricotopus(Diptera: Chironomidae): What About Turkish Representatives Of This Genus?, Adi̇le Sari
Turkish Journal of Zoology
The genus Cricotopus (Diptera: Chironomidae) has a worldwide distribution and possesses a wide variation in ecology and habitat preference across its distribution. Identification of Cricotopus species and distinguishing them from the species of closely related genera (i.e. Orthocladius and Paratrichocladius) are generally difficult. This study aimed to investigate the evolutionary history of several Cricotopus species, with the main focus on C. bicinctus, C. flavocinctus, C. triannulatus, C. patens, C. intersectus, C. laricomalis, C. ornatus, C. reversus, and C. sylvestris from Turkey, using the mitochondrial cytochrome c oxidase subunit I (COI) gene. Molecular classifications of Turkish Cricotopus species were full compatible …
Hematological Status Of Avian Species Along A Metal Pollution Gradient At Sialkot, Pakistan, Ajmal Shehzad, Khalid Mahmood Anjum, Atif Yaqub, Muhammad Zubair Yousaf, Sarwr Allah Ditta, Junaid Naseer
Hematological Status Of Avian Species Along A Metal Pollution Gradient At Sialkot, Pakistan, Ajmal Shehzad, Khalid Mahmood Anjum, Atif Yaqub, Muhammad Zubair Yousaf, Sarwr Allah Ditta, Junaid Naseer
Turkish Journal of Zoology
The concentration of metals and effects of these metals on hematological parameters were examined in avian species by using feathers and blood samples collected from different sites of Sialkot. The major reason for significant differences in hematological parameters and concentrations of metal contents between different species was the difference in feeding habitat. Metal concentrations in feathers and blood samples indicated that the chromium and lead were not found at a safe level. The results did not revealed a significant negative association between metal contents and hematological parameters but concluded that increased metal contents exert negative effects on hematological status especially …
Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz
Comparisons Of Biochemical Compositions In Marsh Frog (Pelophylax Ridibundus)(Anura; Ranidae) Grown In Different Conditions; Wild, Semicultured And Cultured Ones, Emrah Şi̇mşek, Ahmet Alkaya, Hülya Şerefli̇şan, Ayşe Özyilmaz
Turkish Journal of Zoology
Frogs can be added to a list of different raw materials which have sustainable economic value to their producers. Therefore, the biochemical attributes of the frogs require further scientific scrutiny. The major objective of the current study is to investigate some biochemical compositions of edible portions of Pelophylax ridibundus (Pallas, 1771) grown in different conditions. The wild frogs, semicultured frogs, and cultured frogs were investigated regarding female and male specimens, leading to six groups that were determined to investigate the biochemical features of frogs. The results show that they (all frogs in all six groups) have low lipid contents (p < 0.05). The protein contents of the frogs varied in the range of 10.54%-16.10%. The lowest ash contents were found in semicultured male and female frogs. The average moisture contents were roughly 80% for all specimens. The major fatty acids were C16:0, C18:0, C18:1n9, C18:2n6, and C20:4n6 for wild, semicultured, and cultured frogs, respectively, for both sexes, showing their respective amounts varied among groups. All in all, the results show that there exist some differences in the nutritional content of frogs grown in different
Dynamics Of A Western Anatolian Population Of Natrix Natrix And Natrix Tessellata(Serpentes: Natricidae), Yusuf Bayrakci, Di̇nçer Ayaz
Dynamics Of A Western Anatolian Population Of Natrix Natrix And Natrix Tessellata(Serpentes: Natricidae), Yusuf Bayrakci, Di̇nçer Ayaz
Turkish Journal of Zoology
Due to their secretive nature, snakes are the most challenging animal group for monitoring. Nevertheless, population size estimates are indispensable to accurately determining conservation status and management strategies. We used passive integrated transponder (PIT) tags to track aquatic snakes Natrix natrix and Natrix tessellata in Lake Işıklı, Denizli province, Turkey. 304 N. natrix and 1563 N. tessellata specimens were captured and marked over the four-year sampling period. Of the marked individuals, 14 N. natrix and 97 N. tessellata were recaptured at least once. The three-year average population size was estimated at 1940 ± 1055 for N. natrix, and 10,146 ± …
Microsatellite Based Genetic Diversity Of Mediterranean Fruit Fly(Ceratitis Capitata, Diptera: Tephritidae) Populations From Southwest Turkey, Abuzer Güler, Vatan Taşkin, Belgi̇n Göçmen Taşkin, Ersi̇n Doğaç
Microsatellite Based Genetic Diversity Of Mediterranean Fruit Fly(Ceratitis Capitata, Diptera: Tephritidae) Populations From Southwest Turkey, Abuzer Güler, Vatan Taşkin, Belgi̇n Göçmen Taşkin, Ersi̇n Doğaç
Turkish Journal of Zoology
Various pests cause economic losses in some agricultural products, especially in citrus fruits, which are grown in many countries and have a very important role in consumption and export. The Mediterranean fruit fly, Ceratitis capitata Wied. (Diptera: Tephritidae), which spreads throughout the Mediterranean basin, Europe, the Middle East, Central, and South America, and Australia, is considered the most destructive pest in the world. Turkey is an important part of the Eastern Mediterranean basin and, maybe plays a role in the colonization of this pest. This polyphagous species causes huge economic losses by negatively affecting yield and quality in many countries. …
Comparative Diversity Of Heteroptera (Hemiptera) In Fruit Orchards, Gülay Kaçar, Ahmet Dursun
Comparative Diversity Of Heteroptera (Hemiptera) In Fruit Orchards, Gülay Kaçar, Ahmet Dursun
Turkish Journal of Zoology
Among phytophagous insects, the Heteroptera (Hemiptera), true bugs, are economically important because of damage crops by sucking plant organs and by transmitting plant pathogens. The diversity and distribution of Heteroptera species associated with fruits were investigated in hazelnut, cherry, and apple orchards in the crop season of Bolu and Düzce provinces from May 2015 to October 2016. The species were collected with a Steiner funnel from three fruit varieties from two provinces and for each area at different vegetation in the western Black Sea Region. The highest number of sucking bug species and the greatest diversity occurred on hazelnut. A …
Halyomorpha Halys Stål, (Hemiptera:Pentatomidae) Feeding Effects On Some Agriculturalfruits In Georgia, Manana Kereselidze, Daniela Pilarska, Nika Guntadze, Andreas Linde
Halyomorpha Halys Stål, (Hemiptera:Pentatomidae) Feeding Effects On Some Agriculturalfruits In Georgia, Manana Kereselidze, Daniela Pilarska, Nika Guntadze, Andreas Linde
Turkish Journal of Zoology
Feeding effects of the invasive, polyphagous brown marmorated stink bug (BMSB), Halyomorpha halys (Hemiptera:Pentatomidae), on some agricultural fruits (hazelnut, blueberry, mandarin, lemon) were investigated in Guria and Samegrelo regions of Georgia in 2019 and 2020. The damage to hazelnut kernels was evaluated when H. halys adults were allowed to feed on kernels in different stages of development. Furthermore, BMSB adults were allowed to feed on almost ripened fruits of blueberry, on small mandarin fruits which were not yet well developed, and on ripened fruits of mandarin. The evaluation of damage on lemon was recorded after allowing adult BMSB on small, …
The Effects Of Feed Additives And The Use Of A Novel Wood Boiler Heat Exchanger On Litter Quality, Broiler Performance, And Immune Status, Victoria Ayres
The Effects Of Feed Additives And The Use Of A Novel Wood Boiler Heat Exchanger On Litter Quality, Broiler Performance, And Immune Status, Victoria Ayres
Graduate Theses, Dissertations, and Problem Reports (ETD)
Experiments were conducted to investigate the effects of varying feed ingredients and heating systems on boiler performance metrics. Chapter Two investigated the effects of two corn-expressed phytases, differing in enzyme concentration within the grain (3,000 or 9,677 FTU/g), on broiler performance and tibia mineralization, when used as a component in pelleted feed. Dietary treatments included a positive control (PC), with industry-recommended levels of calcium and phosphorous, and a negative control (NC), lower in calcium and non-phytate phosphorous. Six diets containing corn-expressed phytase at high or low grain concentrations, formulated to 3,000, 6,000, or 9,000 FTU/kg, were …
Population Characteristics Of Three Black Bass Species In The Upper Ohio River Drainage, Levi Foster Brown
Population Characteristics Of Three Black Bass Species In The Upper Ohio River Drainage, Levi Foster Brown
Graduate Theses, Dissertations, and Problem Reports (ETD)
In West Virginia, species of black bass are economically and ecologically important and support popular fisheries. In the state’s large, navigable river systems, recent information suggests that anglers consider these fisheries diminished relative to their historic stocks. This study sought to describe the population characteristics of Largemouth, Smallmouth, and Spotted Bass in the upper Ohio River drainage and evaluate possible management actions. Low relative abundances coupled with poor growth estimates for Largemouth and Spotted Bass suggests that a suite of environmental and anthropogenic factors may be reducing the quality of their recreational fisheries. Conversely, demographic estimates produced for Smallmouth Bass …
Quantifying Genomic Diversity And Growth In Iowa Bluegill, Jeremy Raymond Abels
Quantifying Genomic Diversity And Growth In Iowa Bluegill, Jeremy Raymond Abels
Dissertations and Theses @ UNI
Bluegill (Lepomis macrochirus) is one of the most fished species in Iowa. However, after an initial stocking event, lakes rarely receive additional stockings owing to a high rate of natural reproduction. For this reason, the genetic diversity of Bluegill populations remains understudied in the context of fisheries and natural resource management. Additionally, the extent to which genetics influences the growth rate of Bluegill on a population level has not yet been extensively examined. The goal of this study was to understand the diversity of Iowa’s Bluegill population and to determine if there is a genetic association with growth …
Population Dynamics, Relative Abundance, And Habitat Suitability Of Adult Red Drum (Sciaenops Ocellatus) In Nearshore Waters Of The North-Central Gulf Of Mexico, Crystal Hightower, J. Marcus Drymon, Amanda E. Jefferson, Matthew B. Jargowsky, Emily A. Seubert, Simon Dedman, John Mareska, Sean P. Powers
Population Dynamics, Relative Abundance, And Habitat Suitability Of Adult Red Drum (Sciaenops Ocellatus) In Nearshore Waters Of The North-Central Gulf Of Mexico, Crystal Hightower, J. Marcus Drymon, Amanda E. Jefferson, Matthew B. Jargowsky, Emily A. Seubert, Simon Dedman, John Mareska, Sean P. Powers
University Faculty and Staff Publications
In the Gulf of Mexico, the red drum (Sciaenops ocellatus) is an immensely popular sportfish, yet the Gulf of Mexico stock is currently managed as data-limited in federal waters. The results of the federal stock assessment conducted in 2016 for Gulf of Mexico red drum were not recommended for providing management advice. Consequently, we sought to address data gaps highlighted in the assessment by producing up-to- date overall and sex-specific growth models, standardized indices of relative abundance, and predictions of habitat suitability and by updating estimates of natural mortality. Using a time series for the period of 2006–2018, we assigned …
Population Assignment Of Entrained Migratory Westslope Cutthroat Trout In North Idaho, Craig D. Wells
Population Assignment Of Entrained Migratory Westslope Cutthroat Trout In North Idaho, Craig D. Wells
EWU Masters Thesis Collection
The Clark Fork-Pend Oreille River basin of northeastern Washington and the Idaho Panhandle historically supported a robust metapopulation of Westslope Cutthroat Trout (WCT) Oncorhynchus clarkii lewisi, a western native salmonid of high cultural and economic value. The construction of impassible hydroelectric dams and smaller in-stream barriers has prevented the return of migratory WCT to spawning tributaries, likely leading to the fragmentation of this metapopulation over the last 100 years. One such impassible barrier is Albeni Falls Dam near Newport, Washington. Completed without fish passage capabilities in 1955, Albeni Falls Dam has been of interest as a site for restoring fish …
Smallmouth Bass (Micropterus Dolomieu) Population Characteristics And An Evaluation Of Management Responses In Two West Virginia Watersheds, Jacob D. Harrell
Smallmouth Bass (Micropterus Dolomieu) Population Characteristics And An Evaluation Of Management Responses In Two West Virginia Watersheds, Jacob D. Harrell
Graduate Theses, Dissertations, and Problem Reports (ETD)
Smallmouth Bass (Micropterus dolomieu) population characteristics were examined within the Tygart and Cheat River watersheds of north-central West Virginia. Growth, mortality and recruitment were examined for each individual population prior to modeling potential effects of various management schemes. Smallmouth Bass were sampled for total length and weight, aged using sagittal otoliths and sexed through observations of gonadal or ovarian development. Growth for each population was examined using von Bertalanffy growth models and assessed for variation among populations. Population demographic characteristics differed between and among populations, most noticeably between riverine and lacustrine habitat, whereby growth, mortality and recruitment were higher …
Summer Habitat Use, Home Range, And Effect Of Catch And Release Mortality On The Trophy Potential Of Muskellunge, (Esox Masquinongy, Mitchill, 1824), In A Southern Reservoir Population, Peter Isaac Jenkins
Summer Habitat Use, Home Range, And Effect Of Catch And Release Mortality On The Trophy Potential Of Muskellunge, (Esox Masquinongy, Mitchill, 1824), In A Southern Reservoir Population, Peter Isaac Jenkins
Graduate Theses, Dissertations, and Problem Reports (ETD)
Research on Muskellunge (Esox masquinongy, Mitchill, 1824) catch-and-release mortality has been historically focused on the Midwest, Great Lakes, and Ontario. In the southern portion of their range, which we consider to be the portion of the species distribution south of the Mason-Dixon Line (~40°N), Muskellunge, may experience significantly warmer temperatures than those in previous studies and anglers have expressed concern about summer catch-and-release mortality. As part of a broader study to quantify catch-and-release summer mortality in the southern range of Muskellunge, we utilized radio telemetry and active tracking to verify individual movement and survival of Muskellunge in Stonewall …
Evaluating Muskellunge (Esox Masquinongy) Catch-And-Release Mortality At Elevated Summer Water Temperature, Ian Taylor Booth
Evaluating Muskellunge (Esox Masquinongy) Catch-And-Release Mortality At Elevated Summer Water Temperature, Ian Taylor Booth
Graduate Theses, Dissertations, and Problem Reports (ETD)
Angling for Muskellunge (Esox masquinongy) has become widespread and increasingly popular throughout the fish’s range. Current management strategies for Muskellunge include high minimum harvest lengths (>1016mm), closed seasons, and catch-and-release regulations. Due to these strategies and angler sentiments, up to 97% of Muskellunge caught today are released by anglers assuming they will live and be caught again in the future. Previous research on catchand-release mortality in Muskellunge has suggested relatively low mortality rates (0%-5%). However, these studies were all conducted within the fish’s thermal optimum and generally at water temperatures25°C during the summer months, representing a need to evaluate …
Population And Migratory Ecology Of Canada Warblers (Cardellina Canadensis) In The Central Appalachian Mountains, West Virginia, Usa, Stephanie H. Augustine
Population And Migratory Ecology Of Canada Warblers (Cardellina Canadensis) In The Central Appalachian Mountains, West Virginia, Usa, Stephanie H. Augustine
Graduate Theses, Dissertations, and Problem Reports (ETD)
Nearctic-Neotropical migrant birds experience a wide range of environmental conditions throughout their annual cycle; thus, it is particularly challenging to evaluate the spatial factors that may influence population growth. The Canada Warbler (Cardellina canadensis) faces substantial range-wide population declines, but little study has been conducted regarding elements occurring across the entire year that drive demographic rates. The aims of this research are (1) determine the relationship between Canada Warbler population demographic rates and environmental conditions along an elevation gradient in the central Appalachian Mountains and (2) ascertain the nonbreeding season location and migratory routes used by the central …