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The Effects Of Aquaculture Production Noise On The Growth, Hearing, Disease Resistance, And Survival Of Rainbow Trout (Oncorhynchus Mykiss) And Methods For Minimizing Noise In Fiberglass Aquaculture Tanks, John W. Davidson Iii
Graduate Theses, Dissertations, and Problem Reports
Intensive aquaculture systems, particularly recirculating systems, often require noise producing equipment such as pumps, blowers, and filters that inadvertently increase sound levels within the culture environment. These systems are often very effective at culturing healthy, fast growing fish; however, the potential impacts of underwater noise on fish within intensive aquaculture systems have not been evaluated. Limited research suggests that subjecting fish to noise could result in impairment of the auditory system, reduced growth rates, and increased stress. The studies presented within this manuscript were conducted to gain a better understanding of aquaculture production noise and its potential impacts on rainbow …
Characteristics Of Turbulence And Design Of Solid Removal System In The Quiescent Zone Of An Aquaculture Raceway, Eric G. Fizer
Characteristics Of Turbulence And Design Of Solid Removal System In The Quiescent Zone Of An Aquaculture Raceway, Eric G. Fizer
Graduate Theses, Dissertations, and Problem Reports
An aquaculture raceway is a water carrying, open channel with a rectangular cross-section used to raise fish. The first objective of this research is to measure the flow characteristics within a small section of an aquaculture raceway system called the quiescent zone, and determine if the flow through the quiescent zone contains two-dimensional, fully developed, turbulent open channel flow characteristics. If any discrepancies exist, the cause or causes of the discrepancies are to be analyzed. The measured flow characteristics are intended to improve previous measurements taken in the quiescent zone of a rectangular aquaculture raceway system. The second objective is …
State-Wide Fish Tissue Contaminants Survey And Effects Of Feeding Type, Season And Gender On Fish Tissue Contamination Levels, Kenneth L. Stewart
State-Wide Fish Tissue Contaminants Survey And Effects Of Feeding Type, Season And Gender On Fish Tissue Contamination Levels, Kenneth L. Stewart
Graduate Theses, Dissertations, and Problem Reports
Fish tissue fillets from benthic, predator, and mixed diet species were collected from 24 different watersheds in West Virginia. Composite samples were prepared from three to six fish fillets collected at each site, and concentrations of the chemical contaminants polychlorinated biphenyls (PCBs) and mercury were determined for each composite sample. Differences in contaminant concentrations among three major categories of feeding type (predator, benthic, and mixed diet) were examined. Differences due to species of fish and among watersheds were also examined. Predators had significantly higher mercury concentrations than benthic or mixed diet feeders and benthic feeding fish had significantly higher PCB …
Effect Of Dietary Lysine And Genetics On Indices Of Energy And Protein Metabolism In Rainbow Trout And Alterations In The Mitochondrial Proteome In Broilers Fed A Lysine-Deficient Diet, Stephanie K. Pomeroy
Effect Of Dietary Lysine And Genetics On Indices Of Energy And Protein Metabolism In Rainbow Trout And Alterations In The Mitochondrial Proteome In Broilers Fed A Lysine-Deficient Diet, Stephanie K. Pomeroy
Graduate Theses, Dissertations, and Problem Reports
How an organism reacts to consuming a lysine deficient diet was examined in two different circumstances. First, the responses of ten different genetic lines of rainbow trout were observed while consuming a lysine-deficient (LD) diet, used to mimic a soybean meal-containing diet. The aquaculture industry is investigating the incorporation of soybean meal into carnivorous fish diets to alleviate the need for fishmeal. If soybean meal is incorporated into the diet, an assessment of the genetic strains of fish used in the aquaculture industry today must be performed since differences in genetics have been shown to effect growth. When compared to …
Statewide Analysis Of Brook Trout (Salvelinus Fontinalis ) Population Status And Reach-Scale Conservation Priorities In West Virginia Watersheds, Jason W. Clingerman
Statewide Analysis Of Brook Trout (Salvelinus Fontinalis ) Population Status And Reach-Scale Conservation Priorities In West Virginia Watersheds, Jason W. Clingerman
Graduate Theses, Dissertations, and Problem Reports
The Eastern Brook Trout Joint Venture (EBTJV) was formed to implement range-wide strategies that sustain healthy, fishable brook trout populations. Hudy et al. (2006) recently completed a comprehensive analysis of eastern brook trout distributions representing a critical first step towards fully integrating brook trout conservation efforts in this region. This study was designed to supplement and complement existing data on brook trout distributions and status within West Virginia. We examined recently obtained data for the entire state to update the EBTJV distributional map published in Hudy et al. (2006). We then used fish sample data along with GIS-acquired landscape data …
Predictive Modeling Of Freshwater Mussels (Unionidae) In The Appalachians, Alison R. Mynsberge
Predictive Modeling Of Freshwater Mussels (Unionidae) In The Appalachians, Alison R. Mynsberge
Graduate Theses, Dissertations, and Problem Reports
Freshwater mussels are in decline, particularly in the Appalachian region of North America. This region contains the world's greatest diversity of freshwater mussels, but many species are now threatened or endangered. Little is known of the basic ecology and distributions of species of freshwater mussels relative to other freshwater organisms. The goal of this study was to use predictive modeling to predict distributions of freshwater mussels in the Appalachians and identify correlated factors using a watershed framework. Models were developed in the upper Mid-Atlantic and Ohio drainage regions using subwatersheds and separately in the Tennessee region using catchments. Models developed …
Evaluation Of The Impacts Of Highway Construction On Sediment And Benthic Macroinvertebrates In Appalachian Streams, Lara B. Hedrick
Evaluation Of The Impacts Of Highway Construction On Sediment And Benthic Macroinvertebrates In Appalachian Streams, Lara B. Hedrick
Graduate Theses, Dissertations, and Problem Reports
Corridor H is a four-lane highway under construction in north eastern West Virginia. I used a variety of methods to assess the impacts of highway construction in the Lost River watershed, Hardy County, West Virginia. I designed a two part sediment sampler to be used to monitor sediment in paired sites upstream and downstream of highway construction. The two-part design, a base that remains embedded in the substrate, and a removeable trap, allowed for long-term placement of samplers without continual disturbance of the streambed. I used a laboratory flume to compare my sediment sampler design with other devices used to …
Comparison Of A New "U" Shaped Plastic Fish Tank System To The Traditional Concrete Raceway System, Daniel J. Miller
Comparison Of A New "U" Shaped Plastic Fish Tank System To The Traditional Concrete Raceway System, Daniel J. Miller
Graduate Theses, Dissertations, and Problem Reports
The goal of this research was to compare the cost of purchasing, installing and operating a new plastic "U" shaped raceway (fish tank) to the traditional concrete flat-bottomed raceways used in many federal, state, and private fish hatcheries. Potential benefits of this new design include lower fixed (purchase and installation) costs, ease of mobility due to its light weight, reduced operational cost due to the rapid cleaning process that the "U" shape allows, and the simplicity with which modifications can be made to the tank to suit the operation. Limitations include width and depth restrictions and greater vulnerability to vandalism …
Hydroacoustic Assessment Of Resident Species In The Ugashik Lakes, Alaska, Garrett James Staines
Hydroacoustic Assessment Of Resident Species In The Ugashik Lakes, Alaska, Garrett James Staines
Graduate Theses, Dissertations, and Problem Reports
The Ugashik Lakes in southwest Alaska are a large, remote, thereimictic system that does not thermally stratify during the ice-free season. Little research has been done on the resident species of this system and others similar to it. However, with such little baseline information management agencies are still responsible for management of these lakes. In order to provide baseline data on the Ugashik Lakes resident species, hydroacoustic (2001-06) and gillnet (2004-06) surveys were performed.;Chapter 2 uses specific data gathered from the hydroacoustic unit to produce a target strength (TS) and length relationship for salmonids found in the Ugashik Lakes. The …
Rates Of Swim Bladder Parasite Infection And Pit Tag Retention In Upstream Migrant American Eels Of The Upper Potomac River Drainage, Jennifer L. Zimmerman
Rates Of Swim Bladder Parasite Infection And Pit Tag Retention In Upstream Migrant American Eels Of The Upper Potomac River Drainage, Jennifer L. Zimmerman
Graduate Theses, Dissertations, and Problem Reports
This thesis involved two components: identification of the parasite Anguillicola crassus in American eels, Anguilla rostrata and PIT tag retention in eels in a laboratory setting. The recent spread of the swim bladder nematode parasite, Anguillicola crassus, in American eels has caused concern among biologists and fishery managers. A total of 244 yellow-phase American eels were collected at the Millville Dam eel ladder on the Shenandoah River, WV. Swim bladders were removed and examined for the presence of the nematode parasite. The number of parasites in each eel was recorded, and prevalence, intensity, and mean intensity were calculated. A swim …
Reproductive Consequences Of Exposure To Sediment Extracts From The South Branch Of The Potomac River On Japanese Medaka (Oryzias Latipes), Seth R. Davis
Graduate Theses, Dissertations, and Problem Reports
An intersex condition, defined as the presence of oocytes in the testes of male gonochoristic fish, has been observed in smallmouth bass in the South Branch of the Potomac River, West Virginia, which indicates exposure to exogenous estrogens. Endocrine disrupting chemicals (EDC's) are generally hydrophobic and would tend to be found within the sediment of aquatic environments. Few studies have attempted to show the effects of exposure to EDC's on fish using sediment chemical extracts. We have developed a mass sediment extraction technique using 2 solvents (hexane, ethyl acetate:acetone 50:50) to determine the effects of extracted chemicals from three sites …
Stream Fish Populations In A Watershed Scale Context For Fish Community Dynamics In Central Appalachian Watersheds, Zina Hense
Graduate Theses, Dissertations, and Problem Reports
In this study we first conducted a three pass removal study to estimate electrofishing capture probabilities for species and size classes of fish common in the Cheat River and Tygart River watersheds of West Virginia. We then calculated models of capture probabilities for 12 species that were divided into two size classes based on site-specific physico-chemical variables. We took these capture probability models and applied them to a watershed scale study in the Cheat River and Tygart Valley River watersheds of West Virginia. We sampled across the two watersheds with the objective of quantifying and relating juvenile and adult distributions …
Frequency Of Aeromonas Spp. Detection In Rainbow Trout And Recirculation Aquaculture Systems And The Storage Stability Of Fillets, Tabetha Marie Littler
Frequency Of Aeromonas Spp. Detection In Rainbow Trout And Recirculation Aquaculture Systems And The Storage Stability Of Fillets, Tabetha Marie Littler
Graduate Theses, Dissertations, and Problem Reports
Recirculating aquaculture systems enable increased fish production per volume of water. Unfortunately, recirculation systems also provide conditions for bacterial growth. Aeromonas, a genus of bacteria ubiquitous in the environment, contains fish pathogens, human pathogens, and/or spoilage organisms. Of the salmonid species, rainbow trout are the most susceptible to Motile Aeromonad Septicemia (MAS), the fish disease caused by Aeromonas spp. In humans, illnesses such as gastroenteritis, septicemia, and wound infections are caused by ingestion or exposure to Aeromonas spp. The objective of this study was to survey Aeromonas spp. present in the production system, on the fish, and on the butterfly …
Comparison Of Two Electrofishing Gears (Backpack And Parallel Wires) And Abundances Of Fishes Of The Upper Greenbrier River Drainage, Angela D. Burns
Comparison Of Two Electrofishing Gears (Backpack And Parallel Wires) And Abundances Of Fishes Of The Upper Greenbrier River Drainage, Angela D. Burns
Graduate Theses, Dissertations, and Problem Reports
The type of electrofishing gear influences capture efficiencies and abundance estimates of stream fishes. Few studies have examined the Holton and Sullivan (1954) parallel wires method of electrofishing. For this study, I modeled removal data with seven sampling occasions of three common species, western blacknose dace (Rhinichthys obtusus), fantail darter (Etheostoma flabellare), and mottled sculpin ( Cottus bairdi) from 10 paired sites in the upper Greenbrier River drainage, West Virginia, and estimated capture efficiencies of two electrofishing gear types (the Holton and Sullivan parallel wires method with alternating current and backpack units with pulsed-direct current). Ten candidate models represented alternative …
Watercress (Nasturtium Officinale) Production Utilizing Brook Trout (Salvelinus Fontinalis) Flow-Through Aquaculture Effluent, Erika Nichole Smith
Watercress (Nasturtium Officinale) Production Utilizing Brook Trout (Salvelinus Fontinalis) Flow-Through Aquaculture Effluent, Erika Nichole Smith
Graduate Theses, Dissertations, and Problem Reports
Dissolved nitrogen (N) and phosphorus (P) present in flow-through aquaculture effluent can pose the risk of eutrophication to receiving streams when discharged from flow-through systems. One potential solution to prevent nutrient loading is the establishment of an integrated system that cultures green plants in the effluent. The objectives of this research were to determine watercress' (Nasturtium officinale) growth and nutrient contents in both a hydroponic controlled environment and a flow-through aquaponic production system utilizing brook trout (Salvelinus fontinalis) aquaculture effluent; and to evaluate various treatments to determine the best cultural conditions for watercress in the aquaponic system for optimization as …
Age And Growth Of Appalachian Brook Trout In Relation To Life-History And Habitat Features, Jason Thomas Stolarski
Age And Growth Of Appalachian Brook Trout In Relation To Life-History And Habitat Features, Jason Thomas Stolarski
Graduate Theses, Dissertations, and Problem Reports
Currently, it is perceived that brook trout (Salvelinus fontinalis ) are experiencing reductions in both range and abundance across their east coast distribution. Data identifying key habitat features influencing growth rates of these fish will be valuable to managers conducting remediation efforts as growth at age has important consequences to survival and fecundity. Of particular importance within Appalachia may be the influence of surficial geology as the mid Appalachian region receives some of the most acidic rain in the nation. Furthermore, endogenous characteristics such as variation in life-history strategy may also influence growth rates of Appalachian brook trout. However, as …
An Interpolation Method For Stream Habitat Assessments With Reference To The Crystal Darter, Kenneth Richard Sheehan
An Interpolation Method For Stream Habitat Assessments With Reference To The Crystal Darter, Kenneth Richard Sheehan
Graduate Theses, Dissertations, and Problem Reports
Crystallaria asprella spp. (Elk River crystal darter) is documented only in Elk River, West Virginia. Little life history detail is known about this lotic, benthic-dependent species. Previous studies have led to a very basic understanding of the use of depth, flow and substrate of the crystal darter (Crystallaria asprella), and less is known about the Elk River crystal darter. Due to substrate-specificity in crystal darters (which reportedly bury in sand), a study concerning benthic stream habitat modeling was undertaken. Substrate and depth modeling using >5% of an area sampled at a resolution of 0.093 m2 square spatial data in a …
Connecting Wv Fee-Fishing Businesses With The Larger Tourism Market Through The Development Of Tourism Package, Zongxiang Mei
Connecting Wv Fee-Fishing Businesses With The Larger Tourism Market Through The Development Of Tourism Package, Zongxiang Mei
Graduate Theses, Dissertations, and Problem Reports
There is substantial demand for fishing packages in West Virginia. Fee-fishing businesses in West Virginia are often characterized as small businesses, and they could benefit from connecting with larger travel packages that are more likely to attract out-of-state anglers. The objectives are: (1) identify mini-market segments based on fee-fishing experiences; (2) examine how fee-fishing mini-markets can better connect with the larger outdoor recreation markets; and (3) to use this information to identify gaps in recreational offerings and develop tourism packages in a West Virginia test market. Six fee-fishing mini-markets were identified. Regression analysis results indicate that it is possible to …
The Effect Of A Diet Supplemented With Flaxseed Oil On The Lipid Content And Fatty Acid Profile Of Rainbow Trout (Oncorhynchus Mykiss) Muscle Tissue, Jason P. Nguyen
The Effect Of A Diet Supplemented With Flaxseed Oil On The Lipid Content And Fatty Acid Profile Of Rainbow Trout (Oncorhynchus Mykiss) Muscle Tissue, Jason P. Nguyen
Graduate Theses, Dissertations, and Problem Reports
This experiment examined the effect of nine diets supplemented with varied combinations of flaxseed oil and vitamin E on the total lipid content and fatty acid profile of rainbow trout over four months. Mean values were tested for significant differences between groups using one-way analyses of variance.;The most flaxseed oil supplementation, 23.5%, resulted in the highest concentration of total omega-3 fat in fillets (P<0.05). This was due to the increased (P<0.05) concentration of alpha-linolenic acid (ALA). The 23.5% flaxseed oil trout had the lowest (P<0.05) proportion of saturated fatty acids and the highest amount of total unsaturated fatty acid. Unexpectedly, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contents significantly decreased as the experiment progressed. No significant differences were seen among total fat contents. The results indicate that feeding a diet supplemented with flaxseed oil and vitamin E produces omega-3 enhanced trout with higher ALA but lower EPA and DHA.
Spatial Variation In Brook Trout (Salvelinus Fontinalis ) Population Dynamics And Juvenile Recruitment Potential In An Appalachian Watershed, Zachary W. Liller
Spatial Variation In Brook Trout (Salvelinus Fontinalis ) Population Dynamics And Juvenile Recruitment Potential In An Appalachian Watershed, Zachary W. Liller
Graduate Theses, Dissertations, and Problem Reports
I examined the spatial variation in brook trout population dynamics and juvenile recruitment potential in the upper Shavers Fork watershed, West Virginia. The objectives of my research were to (1) identify physico-chemical factors contributing to the spatial variation in the abundance of juvenile brook trout within small basin area stream reaches, (2) quantify patterns of brook trout distribution, movement, and post reproductive demographic parameters across multiple spatial scales, and (3) place the upper Shavers Fork watershed brook trout population along the continuum of watershed-scale metapopulation models. I sampled brook trout population size structure, physical habitat, and water chemistry at the …
Effects Of Environmental Factors On The Paternal Brood Pouch And Sound Production In Two Sympatric Pipefish Species From The Chincoteague Bay, Virginia, Jennifer L. Ripley
Effects Of Environmental Factors On The Paternal Brood Pouch And Sound Production In Two Sympatric Pipefish Species From The Chincoteague Bay, Virginia, Jennifer L. Ripley
Graduate Theses, Dissertations, and Problem Reports
Pipefishes and seahorses of the family Syngnathidae are important inhabitants of diminishing grass beds threatened by excessive nutrient loads, sedimentation, and chemical contaminants. This research examined the influence of these environmental factors on two sympatric pipefishes from the Chincoteague Bay, Virginia. Syngnathids are characterized by a unique mode of reproduction in which the male carries developing embryos in a placenta-like ventral brood pouch until the fry are free-swimming. Interspecific comparisons revealed differences in parental nutrient allocation to embryos. In Syngnathus fuscus, females produce nutritionally poor eggs and males implant developing embryos adjacent to blood vessels. The loose connection between eggs …
Genetic Analysis Of Rainbow Trout (Oncorhynchus Mykiss): Strain Identification Via Microsatellites And Analysis Of Expressed Sequence Tags In Intestine, Liver, Kidney, And Ovary, Amanda B. Stewart
Graduate Theses, Dissertations, and Problem Reports
Implementation of modern fishing techniques and hatchery technologies necessitates use of genetics in management of fishery stocks. Genetic analysis of rainbow trout, Oncorhynchus mykiss, will assist development of superior strains of a valuable aquacultured species. This study was to (1) develop polymorphic microsatellite markers to examine for variation among rainbow trout strains and develop an identification panel of microsatellites to distinguish individual strains, and (2) to identify novel genes and estimate relative gene expression profiles (expressed sequence tags from rainbow trout liver, intestine, kidney, and ovary non-normalized libraries). Thirty-seven microsatellites were identified by screening 576 clones from TAGA and ATG-repeat …
Model And Software Development For Predicting Fish Growth In Trout Raceways, Yin-Han Wang
Model And Software Development For Predicting Fish Growth In Trout Raceways, Yin-Han Wang
Graduate Theses, Dissertations, and Problem Reports
A software program was built using Visual Basic for Applications (VBA) in MicrosoftRTM Excel. The purpose of the software is to allow users to manage their raceways more efficiently by providing a tool to simulate the performance of an existing raceway or to predict the behavior of a raceway under a wide variety of operating scenarios. The program considers the behavior of a system of multiple raceways arranged both in series and parallel configurations, and allows for the addition, removal and combination of different cohorts at different times in different raceways. Input data required include properties of the incoming water …
Culvert Inventory And Effects On Fish Assemblages In A Central Appalachian Watershed, Ira O. Poplar-Jeffers
Culvert Inventory And Effects On Fish Assemblages In A Central Appalachian Watershed, Ira O. Poplar-Jeffers
Graduate Theses, Dissertations, and Problem Reports
We surveyed 120 state-owned culverts within the upper Cheat River basin, West Virginia, and used a fish passage evaluation filter to quantify passage barriers. We quantified the length of stream and weighted potential brook trout recruitment area isolated by each culvert. We also sampled fish communities upstream and downstream of 24 culverts to quantify the impacts of culvert-related isolation on fish assemblages. We found 69% of culverts to be completely impassable. We determined that 17% of the stream length and 23% of weighted potential recruitment area in the study area were isolated by impassable culverts. We found that impassable culverts …
Size, Age Composition, And Upstream Migration Of American Eels At The Millville Dam Eel Ladder, Shenandoah River, West Virginia, Heather Hildebrand
Size, Age Composition, And Upstream Migration Of American Eels At The Millville Dam Eel Ladder, Shenandoah River, West Virginia, Heather Hildebrand
Graduate Theses, Dissertations, and Problem Reports
Abundances of American eel (Anguilla rostrata) are declining along the east coast of the United States and Canada, possibly due to habitat loss and barriers to migration. In Atlantic coast watersheds, dams detain upstream migration of juveniles, and little is known about age class composition, age-length relationships, or environmental cues to upstream migration of yellow-phase eels. An eel ladder was installed on the Millville hydroelectric dam, lower Shenandoah River, WV, to facilitate and monitor the upstream movement of yellow phase eels. Daily length measurements (TL cm) and weights (g) were taken on eels using the ladder during three sampling periods; …
Temporal Trends In Consumption, Growth, And Successful Feeding Traits Of A Central Appalachian Brook Trout Population At The Watershed Scale, Ryan Michael Utz
Temporal Trends In Consumption, Growth, And Successful Feeding Traits Of A Central Appalachian Brook Trout Population At The Watershed Scale, Ryan Michael Utz
Graduate Theses, Dissertations, and Problem Reports
Brook trout (Salvelinus fontinalis) in Appalachia frequently experience limitations in food availability. In order to determine temporal variation in consumption, successful feeding, and corresponding population patterns and growth, the feeding dynamics of a population of brook trout were monitored throughout a headwater watershed over the course of two years. The Middle Fork River brook trout experienced food limitation throughout summer and fall, however, mean consumption estimates fell below maintenance ration only during the winter seasons. Consumption estimates were significantly related to watershed position, as fish in low density, downstream reaches consistently consumed significantly more energy than fish upstream during warm …
Fish Response To Discharge Events From A Power Plant Cooling Reservoir In A River Affected By Acid Mine Drainage And Thermal Influences, Cara Chowning Hoar
Fish Response To Discharge Events From A Power Plant Cooling Reservoir In A River Affected By Acid Mine Drainage And Thermal Influences, Cara Chowning Hoar
Graduate Theses, Dissertations, and Problem Reports
In the summer, a discharge from a power plant cooling reservoir (Mount Storm Lake) located on the Stony River can result in large increases in discharge and temperature. Further, the Stony River is affected by mining-impacted tributaries, which degrade water quality. To study the impact of reservoir discharges upon fish populations we evaluated community composition and smallmouth bass (Micropterus dolomieu) movement along a temperature gradient and relative to the mining-impacted tributaries. The fish community did not differ with discharge events, but community structure varied with mining-impacted inputs. Smallmouth bass avoided areas associated with mining-influenced inputs. Thermal increases associated with reservoir …
Water Quality Disturbances In An Aquaculture That Utilizes Treated Mine Water, Mark Wayne Smith
Water Quality Disturbances In An Aquaculture That Utilizes Treated Mine Water, Mark Wayne Smith
Graduate Theses, Dissertations, and Problem Reports
The objectives of this study were to compare the performance of two feed treatments on a population of rainbow trout, Oncorhynchus mykiss, reared in a linear raceway system, which utilized mine water from a mine water treatment facility (MWTF); to measure and compare waste outputs; to monitor the water quality of the system; and to identify the impacts, if any, of the water quality on the fish population. Toward the end of the study, a spike in the turbidity of the water source led to additional objectives. First, the water quality was characterized during the events to determine the extent …
Trout Movement And Habitat Use In The Upper Shavers Fork Of The Cheat River, West Virginia, Jeff Lee Hansbarger
Trout Movement And Habitat Use In The Upper Shavers Fork Of The Cheat River, West Virginia, Jeff Lee Hansbarger
Graduate Theses, Dissertations, and Problem Reports
I quantified brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) movement and habitat use in a central Appalachian watershed, the upper Shavers Fork of the Cheat River over three seasons (spring/summer 2000-01, fall 2000) with telemetry. The objectives of my study were to: (1) quantify trout habitat use among seasons, and between the mainstem and Rocky Run (a major tributary), (2) quantify the effect of temperature extremes on habitat use by brook trout, (3) quantify trout movement among seasons and between the mainstem and Rocky Run, and (4) relate movement to variations in stream flow, water temperature, and access …
Distribution And Habitat Use Of The Crystal Darter ( Crystallaria Asprella) And Spotted Darter (Etheostoma Maculatum ) In The Elk River, West Virginia, Elizabeth A. Osier
Distribution And Habitat Use Of The Crystal Darter ( Crystallaria Asprella) And Spotted Darter (Etheostoma Maculatum ) In The Elk River, West Virginia, Elizabeth A. Osier
Graduate Theses, Dissertations, and Problem Reports
Crystal darters (Crystallaria asprella) and spotted darters (Etheostoma maculatum) have disjunct distributions within the Mississippi River drainage. In West Virginia, both species are restricted to a single drainage (the Elk River). Little information exists on the distribution and habitat use of crystal and spotted darters in the Elk River. I surveyed the Elk River between Sutton and Charleston, West Virginia, and documented distributions of crystal and spotted darters, as well as habitat use and habitat availability data. Two crystal darters were collected during 20 sampling occasions from 2002 to 2004. Spotted darters were documented at 9 sites; habitat use data …