Journal of the Southeastern Association of Fish and Wildlife Agencies

The Journal of the Southeastern Association of Fish and Wildlife Agencies (ISSN 2330-5142) presents papers that cover all aspects of the management and conservation of inland, estuarine, and marine fisheries and wildlife. It aims to provide a forum where fisheries and wildlife managers can find innovative solutions to the problems facing our natural resources in the 21st century. The Journal welcomes manuscripts that cover scientific studies, case studies, and review articles on a wide range of topics of interest and use to fish and wildlife managers, with an emphasis on the southeastern United States.

 

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Hunting Activity and Male Wild Turkey Movements in South Carolina

SEAFWA Journal Volume 4, March 2017

Anthropogenic pressure can have significant impacts on how wildlife move and how they use habitats. During 2014-2016, we deployed 41 GPS transmitters on male wild turkeys on the South Carolina Department of Natural Resources Webb Wildlife Management Area (WMA) Complex to evaluate effects of hunting intensity on male wild turkey movement ecology. Daily mean movement distance was 3,254 m day-1, but there was significant variation in our mean estimate (SD = 1,478) with movements ranging from 137 to 14,599 m on any given day. Male wild turkeys slightly decreased their movements in response to...

Lead Shot Concentrations in and Adjacent to Fields Managed for Mourning Doves and Effects of Tillage on Shot Concentrations in Tangipahoa Parish, Louisiana

SEAFWA Journal Volume 4, March 2017

Concentrating hunters on dove fields could place mourning doves (Zenaida macroura) and other ground foraging birds at risk of lead poisoning. We collected soil samples during three time periods (pre-soil disturbance [i.e., disking], post-soil disturbance [disking, roller harrow, planting], and post-hunting / field preparation [i.e., mowing, raking, burning]) to determine if soil disturbance reduced the amount of lead shot potentially available to ground foraging birds in managed dove fields. We also collected soil samples in the woods adjacent to these fields. Disking and site preparation...

Movement and Growth of Wild Brown Trout in the Chattahoochee River below Lake Lanier, Georgia

SEAFWA Journal Volume 4, March 2017

The Georgia Wildlife Resources Division (WRD) conducted a tagging study from April 2011 to May 2012 to study growth of wild brown trout (Salmo trutta) in the Lake Lanier Tailwater section of the Chattahoochee River. Sampling occurred monthly at four sites and fish were tagged with VI- Alpha tags on nine occasions between April 2011 and March 2012 for subsequent recapture. Follow-up samples in June and December 2012 confirmed a lack of movement between sites by any tagged brown trout that was seen in the previous samples. Growth increments between tagging and recapture events were...

Movements and Habitat Selection of Male Rio Grande Wild Turkeys during Drought in South Texas

SEAFWA Journal Volume 4, March 2017

Wildlife managers rely on accurate information regarding wild turkey habitat selection and use to appropriately structure management activities. We used integrated VHF-GPS transmitters to evaluate fine scale movements and habitat selection of male Rio Grande wild turkeys (Meleagris gal- lapavo intermedia) in south Texas. As our study coincided with the regions second worst recorded drought, we evaluated the influence of supplemental resources (supplemental feeding and managed surface water) on turkey distribution and movements. We deployed eight GPS units on adult male Rio Grande wild...

Population Growth and Mortality Sources of the Black Bear Population in Northern Georgia

SEAFWA Journal Volume 4, March 2017

An understanding of black bear (Ursus americanus) population trends and cause-specific mortality is needed to direct management decisions in northern Georgia given an increasing human population. Therefore, we evaluated black bear population trends and mortality sources across 26 counties and 18 Wildlife Management Areas in northern Georgia from 1979-2014. We collected harvest data from 6,433 individuals during the study period. Using age-at-harvest data, population reconstruction illustrated an increasing trend in the bear population for both males (λ = 1.113) and females (λ = 1.108)....

Relationships Among Catch, Angler Satisfaction, and Fish Assemblage Characteristics of an Urban Small Impoundment Fishery

SEAFWA Journal Volume 4, March 2017

Urban fisheries provide unique angling opportunities for people from traditionally underrepresented demographics. Lake Raleigh is a 38-ha impoundment located on the North Carolina State University campus in Raleigh. Like many urban fisheries, little is known about angler use and satisfaction or how angling catch rate is related to fish availability in Lake Raleigh. We characterized the recreational fishery and fish assemblage with con- current creel and boat electro fishing surveys over the course of one year. In total, 245 anglers were interviewed on 68 survey days. On average, anglers...

Reproductive Ecology of Alligator Gar: Identification of Environmental Drivers of Recruitment Success

SEAFWA Journal Volume 4, March 2017

Alligator gar (Atractosteus spatula) exhibit many characteristics of a periodic life-history strategy, including extended longevity, late maturity, high fecundity, and variable recruitment success. Observations of alligator gar spawning events indicate that recruitment in inland waters may be linked to spring and summer flood pulses and the availability of floodplain spawning habitats. However, because data have mostly come from observation and not formal experimentation, it is unknown whether these data represent true requirements or if they simply reflect conditions that were easily...

Solving Problems in Fisheries Management: Proof of Concept Using Structured Decision Making at the Undergraduate Level

SEAFWA Journal Volume 4, March 2017

Fisheries management problems are generally complex because they are socio-ecological systems encumbered by issues of scale, stakeholder conflict, and structural uncertainty with respect to the influence of management on the resource. Consequently, agencies that manage fisheries actively seek employees that can demonstrate problem-solving skills and communicate to a diverse set of stakeholders. To enhance development of critical thinking skills, problem-based learning was incorporated into an undergraduate introductory fisheries class using a structured decision making (SDM) framework....

Temporal and Sex-related Differences in use of Baited Sites by White-tailed Deer

SEAFWA Journal Volume 4, March 2017

Many of the methods used to estimate white-tailed deer population parameters from camera images are reliant upon the assumption that rates of detectability are similar between both sexes and all age groups of deer. e assumption of equal detectability may not be valid when bait is used to attract deer to survey sites due to physical and behavioral differences between deer groups. We placed trail cameras set at 1-minute time-lapse intervals at randomly selected sites baited with corn inside the Auburn University Deer Research Facility, a 175-ha enclosure containing a captive population of...

The Influence of Population Demographics on White-tailed Deer Fawning Season

SEAFWA Journal Volume 4, March 2017

White-tailed deer (Odocoileus virginianus) are one of the most abundant and well-studied ungulates in North America. Few studies, however, have examined how population demography affects the fawning season, which may be influenced by age structure and adult sex ratio of the population. From 2010 to 2013, we used vaginal implant transmitters (VITs) to record the birth date of fawns born within a 174-ha captive facility to elucidate how population demography affects fawning season. We documented an earlier shift in fawning season as male age structure increased from a mean of 2.74 years old...

Validation of Daily Increments Periodicity in Otoliths of Spotted Gar

SEAFWA Journal Volume 4, March 2017

Accurate age and growth information is essential in successful management of fish populations and for understanding early life history. We validated daily increment deposition, including the timing of first ring formation, for spotted gar (Lepisosteus oculatus) through 127 days post hatch. Fry were produced from hatchery-spawned specimens, and up to 10 individuals per week were sacrificed and their otoliths (sagitta, lapillus, and asteriscus) removed for daily age estimation. Daily age estimates for all three otolith pairs were significantly related to known age. The strongest...

Variation in Number of Ducks Harvested among Hunters in the Central Flyway

SEAFWA Journal Volume 4, March 2017

Knowledge of the relationship between waterfowl hunters and harvest levels may better inform harvest management decisions. We examined frequency of different sizes of daily harvests among duck hunters, and hunters' contributions to duck harvest in the Central Flyway from 1975-1984, 1988-1993, and 2002-2011 using the U.S. Fish and Wildlife Service's Parts Collection Survey. We stratified hunters sampled by the Parts Collection Survey into 10 equal hunter groups based on seasonal harvest. Hunter groups were ranked from 1 to 10, with hunter group 1 representing hunters with the lowest...

Apparent Survival of White-tailed Deer in the Mississippi River Delta of Louisiana

SEAFWA Journal Volume 5, March 2018

White-tailed deer (Odocoileus virginianus) populations located at the mouth of the Mississippi River are of historical significance as they have been a major source for restocking in Louisiana since the 1960s. Apparent population declines of these deer since the 1990s led the Louisiana Department of Wildlife and Fisheries to initiate a study to gather demographic data on white-tailed deer on the 46,540-ha Pass-a-Loutre Wildlife Management Area (PALWMA). We captured and individually marked 57 deer on PALWMA from 2007 to 2012. We monitored travel corridors using un-baited trail cameras and...

Aquatic Invertebrate Community Composition, Diversity, and Biomass in Non-impounded Bottomland Hardwood Forests and Greentree Reservoirs

SEAFWA Journal Volume 5, March 2018

The Mississippi Alluvial Valley (MAV) had extensive bottomland hardwood forests but less than 25% of this area remains forested today. Impounded greentree reservoirs (GTRs), have been managed for wintering waterfowl since the 1930s, and provide a source of aquatic invertebrates and acorns for foraging ducks and other wildlife. However, few studies of invertebrate community-composition, diversity, and biomass have been conducted at regional scales. We collected samples of aquatic invertebrates from three hardwood bottomlands in the MAV and one in the Mississippi Interior Flatwoods region...

Comparison of Saugeye Age Estimates and Population Characteristics Using Otoliths and Dorsal Spines

SEAFWA Journal Volume 5, March 2018

Saugeye are hatchery produced hybrids (female walleye [Sander vitreus] and male sauger [S. canadensis]) that have been introduced to aquatic systems throughout the United States. The Oklahoma Department of Wildlife Conservation (ODWC) stocks reservoirs throughout Oklahoma with saugeye to control overcrowded, stunted white crappie (Pomoxis annularis) populations and to provide recreational fishing opportunities. Because sacrificing fish regularly to remove otoliths for age estimation is often unpopular with anglers, a non-lethal means of obtaining age estimates for saugeye to describe...

Considerations for Timing of Spring Wild Turkey Hunting Seasons in the Southeastern United States

SEAFWA Journal Volume 5, March 2018

Eastern wild turkeys (Meleagris gallopavo silvestris; hereafter, turkeys) are widely recognized throughout the southeastern United States as a species of ecological, recreational, aesthetic, and economic importance. As a game species, male turkeys are most popularly hunted during spring, a timeframe coinciding with breeding and nesting activities. Given this period's biological importance, wildlife managers are challenged to avoid negative population effects from harvest while simultaneously providing quality hunting opportunities. Biological considerations associated with timing spring...

Cortisol Responsiveness to Stress in Juvenile Channel Catfish Influences Susceptibility to Enteric Septicemia of Catfish

SEAFWA Journal Volume 5, March 2018

Stress is unavoidable in aquaculture and hence strains of fish that are resilient and adaptable to stress need to be developed. In teleosts, cortisol is considered the primary stress hormone and often increases in cortisol concentration correspond to a stress response. The objective of this study was to assess if cortisol responsiveness to stress in channel catfish (Ictalurus punctatus) influences susceptibility to Enteric Septicemia of Catfish (ESC) caused by Edwardsiella ictaluri under controlled conditions. Juvenile channel catfish were subjected to standardized hypoxia stress (1.8 mg L...

Effects of Starvation on Thermal Tolerances of Juvenile Tiger Muskellunge

SEAFWA Journal Volume 5, March 2018

Geographical range of a species can be limited by environmental conditions such as temperature. This is important to understand when trying to establish a new fish population on the fringe of their range. The Oklahoma Department of Wildlife Conservation (ODWC) has been stocking tiger muskellunge (Esox masquinongy x E. lucius) in Lake Carl Etling in northwestern Oklahoma since 2014 with little success. This reservoir experiences a broad range of temperatures that could affect recruitment of tiger muskellunge, especially during times of the year when prey are not abundant. To explore the...

Evaluating Climate Change Planning for Longleaf Pine Ecosystems in the Southeast United States

SEAFWA Journal Volume 5, March 2018

Longleaf pine (LLP, Pinus palustris) has been reduced to 3-5% of its original range, but may be particularly resilient to conditions associated with climate change including drought, severe storms, and increased prevalence of pests. Despite the critical role of LLP in building climate resilient ecosystems, little is known about how landscape managers in the region have considered climate change in planning efforts. We gathered 83 publicly accessible natural resource management plans from the southeastern United States that included management of LLP ecosystems between 1999 and 2016. We...

Five-year Changes in Pond Sediment Nutrients and Phosphorus Adsorption-Desorption at Minor Clark Fish Hatchery, Kentucky

SEAFWA Journal Volume 5, March 2018

Earthen hatchery pond sediments may provide additional nutrients to the water column and act as a sink for nutrients and excess fertilizer. In 2008 and again in 2013 soil nutrient concentrations and phosphorus (P) adsorption were examined in five earthen ponds at Minor Clark Fish Hatchery, Kentucky. These ponds are annually filled with oligotrophic water from an upstream reservoir, fertilized, and drained during normal hatchery operations. Over time, pond nitrogen (N) and P additions have not kept up with soil losses. Soil extractable P concentrations decreased about an order of magnitude...

Impact of Supplemental Feeding for Northern Bobwhite on Movement Ecology of Eastern Wild Turkeys in South Carolina

SEAFWA Journal Volume 5, March 2018

Management techniques to improve wildlife populations often can affect non-target species indirectly. Supplemental feeding for northern bobwhite (Colinus virginianus) has become a popular management technique to improve bobwhite recruitment and survival, but potential impacts on non-target species such as eastern wild turkey (Meleagris gallopavo silvestris) are unknown. We deployed 111 global positioning systems on wild turkeys on the South Carolina Department of Natural Resources Webb Wildlife Management Area Complex during 2014-2016 to evaluate if supplemental feeding for quail impacted...

Individual-based modeling to project viability of gopher tortoise populations under alternative management scenarios: A case study with two Alabama Wildlife Management Areas

SEAFWA Journal Volume 5, March 2018

Population projection models are applied tools for considering the potential effects of land and population management alternatives. Incorporating spatially explicit processes and individual dynamics into these models can be important when assessing viability for relatively small populations in patchy habitats. We developed a spatially explicit, individual-based population simulation model (IBM) for gopher tortoises (Gopherus polyphemus) incorporating demographic rates from published studies throughout the range of the species. We then demonstrated this approach's utility for evaluating...

Natural Mortality and Size Structure of Introduced Blue Catfish in Virginia Tidal Rivers

SEAFWA Journal Volume 5, March 2018

In the 1970s and 1980s, blue catfish (Ictalurus furcatus) were introduced to the tidal rivers of Virginia. Current abundances and uncertainty about population characteristics of blue catfish generated concern for other economically important and imperiled species. We estimated natural mortality and size structure of blue catfish for four tidal river systems (i.e., James, Mattaponi, Pamunkey and Rappahannock). Using common empirical estimators with pooled data from the period 2002-2016, we calculated five estimates of natural mortality. Proportional size distributions were used to examine...

Northern Watersnake Selection of Fish Prey in Western Kentucky

SEAFWA Journal Volume 5, March 2018

Watersnakes serve a variety of important roles in aquatic ecosystems with many species being of conservation interest. The northern water- snake (Nerodia sipedon) has some populations of concern, but is found in a wide variety of aquatic habitats throughout North America. Although previous studies have examined the diet of this typically piscivorous species, research has not addressed whether the northern watersnake is preferentially selecting particular fish as prey. In this study, we sampled snake stomach contents and used Chesson's alpha selection index (αi) to investigate whether...

Resource Selection by Parturient and Post-parturient White-tailed Deer and their Fawns

SEAFWA Journal Volume 5, March 2018

Resource selection by female white-tailed deer (Odocoileus virginianus) and their offspring during the fawning season can influence survival and recruitment. The selection process in females is thought to represent the balancing of often competing demands to minimize predation risk and maximize resource availability to support the energetic demands of lactation. We used a distance-based approach to examine selection of fawn-rearing areas and locations within fawning areas for 20 radio-instrumented female white-tailed deer on Tensas River National Wildlife Refuge, Louisiana. We also...

Response of Fish Populations to Floating Streambed Wetlands

SEAFWA Journal Volume 5, March 2018

A new tool to provide wetland services is the floating streambed wetland (FSW), an active hydroponic system consisting of a polymer matrix floating substrate in which living plants are established. Water is circulated from beneath the FSW and across a streambed on the upper FSW surface, coming into contact with biofilms attached to the polymer matrix and associated root structures. Research has shown that FSW technology is efficient in removing nutrients and water contaminants, and recent manufacturer reports claim that FSW technology may also increase total fish biomass in small water...

Response of Wintering Birds to Simulated Birder Playback and Pishing

SEAFWA Journal Volume 5, March 2018

Researchers have used playback as an effective survey tool for ornithological research and monitoring, but amateur use is controversial because of potential negative effects on birds. Despite limited peer-reviewed research on this technique, conservation organizations worldwide have limited or banned the use of playback. Some birders use “pishing” (vocal imitation of avian alarm calls) as an alternative to playback. We investigated the effects of simulated birder playback and pishing on the behavior of wintering birds in northern Louisiana. Four experimental treatments were performed at...

Seasonal Food Habits of Introduced Blue Catfish in Lake Oconee, Georgia

SEAFWA Journal Volume 5, March 2018

Blue catfish (Ictalurus furcatus) are native to the Coosa River drainage in northwest Georgia but have been widely introduced outside of this range including Lake Oconee, a 7677-ha impoundment on the Oconee River in central Georgia. Blue catfish abundance and growth rates have increased dramatically since their introduction in Lake Oconee, but their food habits are unknown. Therefore, food habits of blue catfish in this impoundment were determined by examining the stomachs of 808 specimens in the reservoir's upper and lower regions across all seasons from summer 2012 to summer 2013. Diet...

Shoal Bass Hybridization in the Chattahoochee River Basin near Atlanta, Georgia

SEAFWA Journal Volume 5, March 2018

The shoal bass (Micropterus cataractae) is a sport fish endemic to the Apalachicola-Chattahoochee-Flint Basin of the southeastern United States. Introgression with several non-native congeners poses a pertinent threat to shoal bass conservation, particularly in the altered habitats of the Chattahoochee River. Our primary objective was to characterize hybridization in shoal bass populations near Atlanta, Georgia, including a population inhabiting Big Creek and another in the main stem Chattahoochee River below Morgan Falls Dam (MFD). A secondary objective was to examine the accuracy of...

Survival and Cause-Specific Mortality of White-tailed Deer in Southeastern Kentucky

SEAFWA Journal Volume 5, March 2018

White-tailed deer (Odocoileus virginanus) are the most sought after game species in Kentucky. Deer numbers in southeast Kentucky are relatively low compared to other areas of the state, even after a decade of restrictive doe harvest and prior population supplementation. We estimated survival and assessed cause-specific mortality of a representative deer population in this low-density area within or near the Redbird District of the Daniel Boone National Forest in southeastern Kentucky from January 2014-January 2017. Estimated annual survival for does averaged 0.89 and was relatively high...

The Lake Fork Trophy Largemouth Bass Survey: Benefits and Limitations of Using Volunteer Angler Data to Assess the Performance of a Trophy Fishery

SEAFWA Journal Volume 5, March 2018

Lake Fork Reservoir, in northeast Texas, supports a nationally-recognized trophy largemouth bass (Micropterus salmoides, LMB) fishery which the Texas Parks and Wildlife Department (TPWD) has managed using restrictive harvest regulations since it was opened to public fishing in 1980. De- spite a long history of annual creel and electro fishing surveys conducted by TPWD, data on trophy fish is limited. Fisheries managers' inability to collect trophy-sized LMB using traditional sampling methods is probably the result of a combination of gear biases and low relative abundance of trophy-sized...

The Role of Private Ponds in Recruiting the Next Generation of Anglers

SEAFWA Journal Volume 5, March 2018
Fisheries Outstanding Technical Paper

Angling participation has stagnated or declined in many regions, threatening the political and financial support for fisheries management. Angler recruitment programs aim to counteract these trends, but most are public programs targeting public water bodies. There are about 4.5 million small ponds and lakes in the United States, most of which are privately owned. These systems may play a major yet hidden role in angler recruitment. Using an online survey of avid pond owners and managers, we explored the ideas that private waters are providing youth angling opportunities, increasing fishing...

Understanding Deer, Bear, and Forest Trends in the North Georgia Mountains: The Value of Long-term Data

SEAFWA Journal Volume 5, March 2018
Wildlife Outstanding Technical Paper

Most state wildlife agencies collect harvest data to inform management decisions. However, these data are typically considered across relatively short time periods and are rarely revisited. We present a case study using historical records to investigate potential agents (i.e., harvest, predation, and forest change) influencing the declining white-tailed deer (Odocoileus virginianus) population in the north Georgia mountains. We used long-term black bear (Ursus americanus) and deer harvest data, and indices of forest stand conditions from 1979-2015 on eight Wildlife Management Areas (WMAs)...

Variation in Trotline Catfish Catch and Bycatch Rates by Hook and Bait Type in the New River, Virginia

SEAFWA Journal Volume 5, March 2018

The New River, Virginia, supports a trotline fishery for catfish (Ictaluridae) that coexists with popular recreational fisheries for smallmouth bass (Micropterus dolomieu), muskellunge (Esox masquinongy), and walleye (Sander vitreus), yet no studies have examined trotline catches or bycatch of these game fish. Trotline effort was estimated by conducting off-site interviews of trotline fishers and field counts of active trotlines. Catch of catfish and bycatch were estimated with experimental trotline sets that used circle or J hooks and two bait types (i.e., live or cut bait). Catch...

A Tale of Two Timescales: Using Otolith Microchemistry to Improve Our Understanding of Alligator Gar Movement in the Lower Trinity River, Texas

SEAFWA Journal Volume 6, March 2019
Fisheries Outstanding Technical Paper

Telemetry-based study of alligator gar (Atractosteus spatula) movement in the lower Trinity River, Texas, indicated that fish primarily re- mained within discrete home ranges less than 60 river kilometers (rkm), supporting the potential for local-scale management. However, the temporal scale of inference was limited (22 months), which may inadequately represent fish movements and home range size at the lifetime (i.e., ≥50 years) scale. Therefore, we used otolith microchemistry to examine the long-term movements of alligator gar (n = 59; total length range 1152 to 2420 mm, age range 4 to 60...

Achievement-Oriented Effects on Waterfowl-Hunt Quality at Mississippi Wildlife Management Areas

SEAFWA Journal Volume 6, March 2019
Wildlife Outstanding Technical Paper

Waterfowl hunters participate in hunting for appreciative-, affiliative-, and achievement-oriented reasons. To investigate the influence of achievement-oriented factors on hunt quality, we analyzed post-hunt surveys completed by waterfowl hunters at four Mississippi Wildlife Management Areas (WMAs), 2008–2015. We used these questions to calculate a hunt quality score for each participant and tested whether variation in hunt quality was best explained by total number of ducks harvested, number of mallards harvested, total bag weight, or palatability of ducks. Hunt quality increased with...

Angler Catch and Harvest of Targeted Sportfishes in Small Georgia Lakes

SEAFWA Journal Volume 6, March 2019

Public fishing areas (PFAs) in Georgia are intensively managed freshwater impoundments that provide a variety of fishing opportunities to an- glers. Management efforts and fishing regulations at these PFAs depend on understanding basic aspects of recreational fishing pressure, catch, and har- vest. Accordingly, we conducted a roving creel survey during January–December 2013 at Marben PFA in middle Georgia to quantify sport fishing total effort, catch, harvest, and fish catch by species, number, and weight in 14 lakes. Almost all of the anglers interviewed (84% of the 1159 parties) targeted...

Changes in Waterfowl Abundance and Species Composition on Louisiana Coastal Wildlife Management Areas and Refuges 2004-2016

SEAFWA Journal Volume 6, March 2019

Aerial waterfowl surveys are conducted on major wintering areas to provide regional population indices and determine habitat use of non-breeding waterfowl. Coastal Louisiana supports more than one quarter of the continental dabbling duck population during winter. Thus, consid- erable effort is allocated to monitoring waterfowl abundance in coastal Louisiana with implications for future waterfowl habitat management in the region. We conducted monthly surveys on nine state-owned coastal wildlife management areas and refuges, November–January 2004–2016. Across all sites and survey years, the...

Comparison of Angler Pressure Counts by Manned and Unmanned Aircraft on an Arkansas Tailwater Fishery

SEAFWA Journal Volume 6, March 2019

The Arkansas Game and Fish Commission (AGFC) budgeted approximately $US250,000 for air operations in fiscal year 2017, 74% of which was for aerial observation by manned aircraft. Small unmanned aircraft (sUAS) have lower operating costs than manned aircraft, and thus significant cost savings could be experienced were sUAS to replace manned aircraft. However, it is first necessary to evaluate that data from sUAS are comparable to data from manned aircraft. Therefore, angler pressure counts were conducted simultaneously using both manned aircraft and sUAS within the four management zones of...

Comparison of Otoliths and Scales in Estimating Age of Redbreast Sunfish and Green Sunfish in the Yellow River Watershed, Georgia

SEAFWA Journal Volume 6, March 2019

Population-level studies often require age estimation of fish, but populations in small rivers and streams are generally smaller than those in large rivers or reservoirs. Therefore, non-lethal aging methods are generally recommended to minimize the potentially negative effects of sampling on population size. Accordingly, our main goal was to compare otoliths and scales as structures for estimating the age of redbreast sunfish (Lepomis auri- tus) and green sunfish (L. cyanellus) in an urban watershed. Reader agreement was greater for otoliths (88%–89%) than for scales (73%–79%), and pre-...

Cost and Forage Production of Food Plots, Prescribed Fire, and Roller Chopping for Northern Bobwhite at Babcock-Webb Wildlife Management Area, Florida

SEAFWA Journal Volume 6, March 2019

Management of northern bobwhite (Colinus virginianus) commonly focuses on creating cover and food for bobwhite throughout the year. Numerous studies have addressed these management practices and their impacts on bobwhite, but few have assessed the quantity of resources they pro- duce or the associated management cost per unit of production. My study assesses three common bobwhite habitat management practices (prescribed fire, roller chopping, and food plots) on the Cecil M. Webb-Babcock Wildlife Management Area in Charlotte County, Florida. I estimated production of the most common natural...

Eastern Gray Squirrel Survival in a Seasonally-Flooded Hunted Bottomland Forest Ecosystem

SEAFWA Journal Volume 6, March 2019

Though the eastern gray squirrel (Sciurus carolinensis) is an important game species throughout its range in North America, little is known about environmental factors that may affect survival. We investigated survival and predation of a hunted population of eastern gray squirrels on Lown- des Wildlife Management Area in central Alabama from July 2015–April 2017. This area experiences annual flooding conditions from November through the following September. Our Kaplan-Meier survival estimate at 365 days for all squirrels was 0.25 (0.14–0.44, 95% CL) which is within the range for previously...

Effect of Spring Discharge and Adult Abundance on Population Abundance of Two Southern Appalachian Rainbow Trout Populations

SEAFWA Journal Volume 6, March 2019

Stream-dwelling salmonid populations may be affected by both density-dependent and density-independent processes, but the relative im- portance of each may vary both spatially and temporally. We quantified population fluctuations of two unexploited rainbow trout (Oncorhynchus my- kiss) populations in western North Carolina over a 10-year period and examined the effects of spring discharge and adult abundance on recruitment. Both rainbow trout populations exhibited high degrees of temporal variability in density during the study. High spring flows that occurred during the incubation and...

Effects of a Milo Diet, Mineral Supplementation, and Native Seed Use in Pen-Raised Northern Bobwhites

SEAFWA Journal Volume 6, March 2019

Stocking of pen-raised northern bobwhites (Colinus virginianus) into natural habitat is a common management strategy for this species, as is supplemental feeding of the cultivated seed milo (Sorghum bicolor) to wild bobwhites. However, milo may be deficient in minerals and/or other nutri- ents, leading to negative effects for bobwhites eating only milo. Additionally, pen-raised bobwhites with no experience eating seeds may be reluctant to eat native seeds they may find when released. We studied the effects of a milo-only diet on pen-raised bobwhites during the non-breeding season, and we...

Engaging North Carolina's Trout Anglers and Other Stakeholders to Help Conserve Eastern Hellbenders

SEAFWA Journal Volume 6, March 2019

The eastern hellbender salamander (Cryptobranchus alleganiensis alleganiensis) is a protected species of concern in North Carolina as well as in several other states. Despite long-term efforts by the North Carolina Wildlife Resources Commission (NCWRC) and cooperating partners to improve understanding of hellbender status in the state, census of all known and potential populations is lacking. The species’ dependence upon clean, cold, well-oxygenated water restricts its distribution to North Carolina’s Blue Ridge Ecoregion, overlapping much of the state’s trout fishery. This overlap...

Evaluation of Supplemental Pellet Feeding and Threadfin Shad Addition on Stable Isotope Signature and Potential Influence on Fish Growth in Recreational Fishing Ponds

SEAFWA Journal Volume 6, March 2019

Pond enhancements such as adding pelleted feed or stocking threadfin shad (Dorosoma petenense) are sometimes used in the management of pond fisheries, but their relative impacts on growth and reproduction at multiple levels of the food web are not often fully evaluated. We used stable isotope analysis to indicate the contribution of pelleted feed to bluegill (Lepomis macrochirus) reproduction and growth, and ultimately to largemouth bass (Micropterus salmoides) growth in the presence and absence of threadfin shad via two different approaches: a pond experiment and sampling of established...

Increasing Largemouth Bass Carrying Capacity Using Destratification: A Case Study

SEAFWA Journal Volume 6, March 2019

Aeration can circulate waters by disrupting thermal density differences associated with stratification, allowing homogenization of tempera- ture, oxygen, and other physicochemical characteristics within the water body. Use of lake and pond destratification as a management tool has been increasing in recent years, yet data are limited regarding its effects on fish communities. This case study examines the response of a largemouth bass (Micropterus salmoides) population to destratification in a 2.4-ha pond over nearly a decade. Biomass (35.8–42.8 kg ha–1) and density (51–93 fish ha–1) of...

Lessons Learned While Establishing an Unmanned Aircraft Program at a State Natural Resource Management Agency

SEAFWA Journal Volume 6, March 2019

The Arkansas Game and Fish Commission (AGFC) conducted 56 h of unmanned aircraft operations between February 2017 and April 2018. Operations involved video and still photography for both scientific and public outreach purposes, mapping, and live surveillance. Some operations were conducted under the small unmanned aircraft rule (Title 14 Code of Federal Regulations §107) established by the Federal Aviation Administra- tion (FAA), while some were conducted under the terms of a Certificate of Authorization from the FAA. The initial training program consisted of a 32-h in-person class. After...

Production and Economic Comparison of Single Versus Multiple Harvests of Hybrid Catfish in a Commercial In-pond Raceway System in West Alabama Targeting Two Market Outlets

SEAFWA Journal Volume 6, March 2019

This study evaluates the production and economic feasibility of a fixed-floor, in-pond raceway system (IPRS) to supply processor and niche live catfish markets while also highlighting production issues that arose by targeting these two markets. A west Alabama catfish producer grew hybrid catfish (♀ Ictalurus punctatus x ♂ Ictalurus furcatus) to market size in two production cycles (2012–2013 and 2013–2015). Management and harvest of IPRS-raised catfish changed from production cycle 1 to production cycle 2 due to higher market prices received from niche-live fish market buyers. The high...

Relative Efficacy of a Urine-based Lure for Attracting Wild Pigs

SEAFWA Journal Volume 6, March 2019

Population surveys and removal efforts for wild pigs (Sus scrofa) have traditionally used a food-based attractant. However, some situations or locations where these activities may take place may not be conducive to the logistical challenges associated with storing or hauling large quantities of bait. Scent-based lures are lighter and easier to store than baits, and may negate some of these logistical challenges. Our goal was to examine the efficacy of a urine-based lure for attracting wild pigs to and retaining them at camera sites. We compared the initial arrival time and length of visits...