Journal of the Southeastern Association of Fish and Wildlife Agencies

We described sociodemographics and expenditures of black bass (Micropterus spp.) anglers participating in eight different tournament types on Lake Guntersville, Alabama, in 2013. We estimated 9035 anglers fished in 259 tournaments. Most anglers were middle- to older-age Caucasian males with an annual household income of over US$75,000, and who had participated in tournaments for over 15 years. Travel distance, expenditures, non-Caucasian participants, residence location, number of times fishing on Lake Guntersville, entry fees, and club membership all differed among tournament types. Anglers spent $4.5 million (average of about $500 per tournament per angler) that generated $208,000 in state and local tax revenue over a one-year period. However, expenditures varied over an order of magnitude among different tournament types.

The Mobile-Tensaw Delta is an 8231-ha oligohaline, tidal estuary that supports a popular largemouth bass (Micropterus salmoides) fishery. This system is productive, with an abundant bass population and above-average recruitment to age-1. But recruitment of the 2004 year-class was poor post-Hurricane Ivan, prompting angler concerns about the population. We considered improvements in the fishery were most likely achieved by stock- ing advanced-size fingerlings. Larger, older fish reared on live food were expected to provide a competitive advantage over native fish and exhibit higher survival than stocking smaller fingerlings. As this is an expensive venture, we tested this proposal in two tidal watersheds, Byrnes Lake and Threemile Creek, and a freshwater control, Monroe County Lake. During 2010–2014, a total of 16,380 advanced-size (97–354 mm TL) largemouth bass were tagged and stocked at approximately 10 months old.

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 a preferred species; of these anglers, 34.7% targeted a second species, and 5.7% targeted a third species. Sunfish (Lepomis spp.) ranked highest among pri- mary, secondary, and tertiary targeted species, whereas channel catfish (Ictalurus punctatus) was the highest ranked quaternary targeted species.

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 ponds. Bluegill growth and reproductive metrics increased with increased rates of pelleted feed provided. Bluegill nitrogen signature decreased with pelleted feed in the small pond experiment, suggesting feeding at a lower trophic level with increased feed. Largemouth bass nitrogen signature results showed similar trends to that of bluegill, although not statistically significant.

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- cision (mean CV) in age estimates was better for otoliths (3.7%–4.0%) than scales (6.1%–9.4%) for both species. Readers were significantly more confi- dent in their otolith-derived age estimates than scale-derived age estimates for both species. For redbreast sunfish and green sunfish, age estimation bias between readers was apparent for scales, but not for otoliths.

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 years) between the lower Trinity River and Trinity-Galveston Bay system. Strontium:calcium (Sr:Ca) concentrations were measured along laser-ablated transects from the otolith core (i.e., time at hatch) to the edge (i.e., time at capture) for fish collected throughout the system, document- ing movements between the river (freshwater) and bay (saltwater).

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 density of fish in the IPRS and the small size of the raceway cells made it easier to frequently harvest small quantities of catfish for niche markets. Small quantities of catfish cannot be harvested efficiently from the large ponds traditionally used in the U.S. farm-raised catfish industry.

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 emergence periods of rainbow trout were associated with densities of age-0 and age-1 trout in both streams. Age-0 densities were also associated with adult densities in one stream but with no evidence of a density dependent relationship. These results suggested that fluctuations in rain- bow trout density in these two streams were determined primarily by a density-independent factor.

Brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) were stocked at two sizes, small (approximately 254 mm TL) and large (approximately 356 mm TL), in Apalachia Reservoir, North Carolina, to determine the best size and species to create a trophy put-grow-and-take fish- ery. Trout were tagged and stocked in December 2012–2015 and collected with annual boat electrofishing and gill-net surveys. Small trout of both spe- cies grew faster in length than large trout; however, brown trout of both size classes reached larger sizes (≥500 mm TL). Large brown trout were highly piscivorous throughout the study, whereas small trout of both species fed primarily on macroinvertebrates within the first four months in the reservoir and converted to a more piscivorous diet by 16 months when they had reached a mean TL of ≥400 mm. Large rainbow consumed mainly macroinver- tebrates until becoming more piscivorous after 16 months in the reservoir.

Florida freshwater habitats provide many essential functions including flood control and nutrient sequestration. While serving as habitat for many fish and wildlife species, wetlands also contribute significantly to the outdoor recreation industry. Despite these services, aquatic habitats contin- ue to face threats, such as urban encroachment, water withdrawals, water-level stabilization, sedimentation, non-native species introduction, cultural eutrophication, and climate change. With Florida’s increasing human population, encroachment and development continues into natural areas, stress- ing aquatic habitats and the fish and wildlife that depend on healthy wetlands. This paper summarizes a GIS process for identifying publicly accessible freshwater resources and presents a multi-criteria decision analysis tool for prioritizing those resources to guide management considerations.

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 Beaver Dam Tailwater, Arkansas. Counts of boats, boat anglers, boat occupants, and non-boat anglers were compared between methods using a Wilcoxon paired signed rank test. More boat anglers were recorded using the manned aircraft than the sUAS (v = 55, P < 0.01); observ- ers in the manned aircraft appeared to have recorded some non-fishing boat occupants as anglers.

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 gaining operational experience, subsequent training expanded to a 112-h class with greater emphasis on hands-on flight experience. We also provide brief reports of four accidents involving small Unmanned Aerial Systems (sUAS), most of which occurred during training. Inexperienced pilots should be limited to low-risk projects until they gain operational experience.

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 tested the effects of mineral supplementation on bobwhites fed a milo diet. We also studied use and selection of native seeds by pen-raised bobwhites, and we tested the hypothesis that exposure to a cultivated seed (milo) diet improves the willingness of pen-raised bobwhites to eat native seeds.

The State Acres For wildlife Enhancement (SAFE) practice of the Conservation Reserve Program (CRP) in Tennessee is targeted to help

restore native habitats to benefit the northern bobwhite (Colinus virginianus) and other declining early successional wildlife. A survey of a subset of

participating landowners was conducted to assess landowner perceptions of and experiences with the practice and perceived wildlife response. The sur-

vey response rate was 58% (73 of 126 surveys mailed). All respondents were owners of the CRP SAFE tracts at the time of the survey, and most (91%)

managed the SAFE tracts themselves. SAFE contracts had been active for an average of seven years and ranged from 2 to 213 ha in size, with a mean

of 21.0±30.4 ha. Most of the respondents indicated they had received about the right amount of information prior to signing the SAFE contract (over

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 bobwhite forage (slough grass [Scleria spp.]) and the most common planted species (sesbania [Sesbania spp.]) in 80 wild- life exclosures located in areas that had been managed with prescribed fire only, in those that had been managed with both prescribed fire and roller chopping, and in food plots.

Black-bellied whistling-duck (Dendrocygna autumnalis; BBWD) is a neo-tropical species distributed in coastal areas of northern South Amer- ica, Central America, and southern North America. Despite their pervasiveness, the population distribution, survival, and harvest-mortality of BBWD in the southeastern United States remains unclear. We used BBWD sightings reported to eBird to delineate range expansion from 2006–2016 in Ala- bama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Texas. Concurrently, we used band-recovery data from 759 BBWD captured in five states (Georgia, Florida, South Carolina, Texas, and Louisiana) from 2014–2017 and Burnham live-dead models to calculate survival, recapture proba- bility, and annual recovery rate.

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 total number of ducks and mallards harvested. Hunt quality scores increased with an increasing number of ducks harvested up to six total ducks (i.e., the daily allowable bag) and number of mallards up to 3 ducks (i.e., 1 less than the daily allowable bag during study). Our results indicate that harvesting ducks, especially mallards, is important to hunters at Mississippi WMAs.

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 most commonly observed species were gadwall (Mareca strepera), green-winged teal (Anas crecca), and mallard (Anas platy- rhynchos). Despite increases in continental breeding population indices to near record highs, their populations were stable region-wide in coastal Lou- isiana, with minor declines on some heavily-hunted and unmanaged areas.

Spatial variation in landscape composition can influence phenotypic expression in wildlife species and can improve management efforts to express certain phenotypic traits. We evaluated the influence of age, landscape composition, and physiographic province on white-tailed deer (Odo- coileus virginianus) antler characteristics using data from 16,622 male deer (age range: 1.5–3.5+ years old) harvested between 1997–2016 across five physiographic provinces in Georgia. Age and physiographic province influenced antler size index (ASI; P < 0.001). ASI of yearling males was greatest (x- = 53.37; SE = 0.39) in the Upper Coastal Plain and least (x- = 46.23; SE = 0.51) in the Lower Coastal Plain physiographic province. Given the differences in ASI among physiographic provinces, we evaluated how landscape composition within each physiographic province influenced ASI of 7,325 yearling (1.5-year-old) males.

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 among boars, sounders, and juveniles at sites with a urine lure, whole corn, and a combination of the urine lure and whole corn during June and July 2017 on Lowndes Wildlife Management Area, Alabama. Our results indicated that sounders arrived at URINE sites quicker than other treatment sites, although we did not find these same results among boars or juveniles.

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 studied eastern gray squirrel populations (0.20–0.58). There was no difference between male (0.13; 0.05–0.36, 95% CL) and female survival (0.37; 0.18–0.75, 95% CL, P=0.16). Survival was greatest in summer (1.00) and fall (0.65; 0.29–1.0, 95% CL) and lowest during winter (0.23; 0.11–0.50, 95% CL).

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 presented an opportunity for the NCWRC to educate trout anglers about hellbender conservation while also offering a chance to supplement existing data of the spatial and temporal distribution of the salamander by enlisting angler help.

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 phenotypic identifications below MFD based on a simplified suite of characters examined in the field. Fish were genotyped with 16 micro- satellite DNA markers, and results demonstrated that at least four black bass species were involved in introgressive hybridization. Of 62 fish genotyped from Big Creek, 27% were pure shoal bass and 65% represented either F1 hybrids of shoal bass x smallmouth bass (M.

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 fish. We collected volunteer angler survey data on trophy-sized sh >3.18 kg, with interest in the sample above the upper bound of the protective slot- length limit (>609 mm TL), and evaluated the utility of this information to supplement creel and electro fishing survey data.

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 possible effects of temperature and prey availability on post-stocking survival, temperature tolerances of juvenile tiger muskellunge were determined in laboratory trials using starved and fed fish (n=9 each) acclimated to temperatures of 20, 24, and 28°C.