31 results on '"Ben C. Neely"'
Search Results
2. Evaluating Effects of Live‐Imaging Sonar on Angler Catch of Crappies in a Kansas Impoundment
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Ben C. Neely, Jeff D. Koch, and Keith B. Gido
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Aquatic Science ,Nature and Landscape Conservation - Published
- 2022
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3. Relationships between Gizzard Shad, Impoundment Characteristics, and Sympatric Fish Species
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Zachary B. Klein, Ben C. Neely, and Jeff D. Koch
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Ecology ,Management, Monitoring, Policy and Law ,Aquatic Science ,Ecology, Evolution, Behavior and Systematics - Published
- 2022
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4. An Evaluation of Goldeye Life History Characteristics in Two Kansas Reservoirs
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Brett T. Miller, Ernesto Flores, D. Scott Waters, and Ben C. Neely
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Ecology ,Animal Science and Zoology ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation - Abstract
Goldeye Hiodon alosoides are native through much of Canada and the Mississippi River drainage in the United States. Life history characteristics have been described for several commercially important populations in northern portions of their range, but there is a paucity of information available for more southernly populations. Milford and Lovewell Reservoirs are in the Kansas River basin and harbor the only two lentic Goldeye populations in Kansas. Further, anecdotal observations suggest declining population abundance. We sought to examine temporal trends in relative abundance and describe current size structure, body condition, and population dynamics of these two remnant populations. Both populations had decreasing relative abundance over the previous 24-y period, although decreases in the Lovewell population were most profound. In Milford Reservoir, the median total length of sampled Goldeye was 268 mm (minimum = 235 mm; maximum = 431 mm). The estimated maximum observed age for Goldeye was 8; however, age-1 Goldeye were the most abundant year-class that we collected, accounting for 80% of sampled fish. We fit a von Bertalanffy growth model to back-calculated length at annulus formation with parameter estimates of L∞ = 402 mm, K = 0.93, and t0 = 0.29. We collected two individuals at Lovewell Reservoir; therefore, no analyses were conducted. Overall, this study provides cursory knowledge of two remnant Goldeye populations in Kansas. These results can be applied to promote better understanding of their ecological role in these reservoirs and other midwestern impoundments with remnant populations.
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- 2022
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5. Influence of environmental variables on catch of Walleye brood fish for propagation efforts
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Lucas K. Kowalewski, Michael A. Parr, and Ben C. Neely
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Aquatic Science - Published
- 2023
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6. A Meta-Analysis of Shoreline Angling Metrics in Large Impoundment and Associated Tailwaters in Kansas with Implications for Angler Access
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Ben C. Neely, Susan F. Steffen, and Jeff D. Koch
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General Medicine - Published
- 2022
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7. Blue Catfish Fisheries in Kansas: 50 Years of Research and Management
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Brett T. Miller, Weston L. Fleming, Ernesto Flores, Don J. George, Josh L. Jagels, Craig M. Johnson, Nicholas W. Kramer, Seth A. Lundgren, Justin L. Morrison, Ben C. Neely, Connor J. Chance-Ossowski, John A. Reinke, Richard M. Sanders, Bryan J. Sowards, Ely N. Sprenkle, Susan F. Steffen, Micah J. Waters, and D. Scott Waters
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General Medicine - Published
- 2022
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8. Use of the North American Standard Gill Net for Sampling the Invasive White Perch: Information from Three Kansas Reservoirs
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Ben C. Neely, Daniel E. Shoup, Micah J. Waters, Craig Johnson, and Bryan Sowards
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Fishery ,Perch ,White (horse) ,Ecology ,biology ,Environmental science ,Sampling (statistics) ,Management, Monitoring, Policy and Law ,Aquatic Science ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Published
- 2021
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9. Factors Influencing Bluegill Growth in Small Kansas Impoundments
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Connor J. Chance-Ossowski, Ben C. Neely, Jeff D. Koch, Keith B. Gido, and Elizabeth A. Renner
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0106 biological sciences ,Fishery ,Ecology ,010604 marine biology & hydrobiology ,Animal Science and Zoology ,Biology ,010603 evolutionary biology ,01 natural sciences ,Lepomis macrochirus ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation - Abstract
We evaluated growth of Bluegill Lepomis macrochirus in 24 small Kansas impoundments to understand variability in populations statewide. We assigned ages to 1,323 Bluegill, and when combined, growth parameters using the Ogle–Isermann parameterization of the von Bertalanffy growth model were: L∞ = 228 mm, K = 0.25, and t152 = 3.10 y. Growth was variable among the 24 populations and t152 (time to reach 152 mm total length) ranged from 1.56 to 4.87 y. We selected four representative limnological variables (latitude, maximum depth, total nitrogen, and total phosphorus) and four representative catch variables (catch-per-effort [CPE] of Bluegill, proportional size distribution of 178-mm Bluegill, CPE of stock-length Largemouth Bass Micropterus salmoides, and CPE of Gizzard Shad Dorosoma cepedianum) to elucidate mechanisms that explained t152 in Bluegill populations. We fit all subset candidate models using the eight variables to predict t152. Top candidate models (corrected Akaike's information criterion scores within two units of the most parsimonious model) comprised a confidence model set, and we used model-weighted averaging to calculate parameter estimates with 95% confidence intervals for each independent variable present in the confidence model set to develop a single explanatory model. The final model suggested that Bluegill size structure, latitude, and CPE of stock-length Largemouth Bass affected Bluegill growth, whereas a smaller effect was attributed to CPE of Gizzard Shad. Combined, these variables explained 40% of variation in observed Bluegill growth rate. Results from this study summarize Bluegill growth in Kansas and highlight variation in growth rates across small impoundments. Further, they suggest that Bluegill size structure, latitude, and relative abundance of stock-length Largemouth Bass are important factors regulating Bluegill growth in small Kansas impoundments.
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- 2020
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10. Catfish 2020, A Clear Vision of the Future
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Mark T. Porath, Ben C. Neely, Daniel E. Shoup, and Thomas J. Kwak
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Fishery ,Geography ,Ecology ,Management, Monitoring, Policy and Law ,Aquatic Science ,Ecology, Evolution, Behavior and Systematics ,Catfish - Published
- 2021
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11. The Effect of Largemouth Bass Virus on Bass Populations in Kansas Impoundments
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Jeff D. Koch, Ernesto Flores, Chris Steffen, Ben C. Neely, Susan F. Steffen, and Vanessa Salazar
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education.field_of_study ,food.ingredient ,Incidence ,Fishing ,Population ,Ranavirus ,Wildlife ,Aquatic Science ,Biology ,Kansas ,DNA Virus Infections ,Fishery ,Bass (fish) ,Fish Diseases ,Lakes ,food ,Electrofishing ,Prevalence ,%22">Fish ,Animals ,Bass ,sense organs ,education ,Body condition - Abstract
Largemouth Bass virus (LMBV) first became a concern in Kansas when it was identified as a potential cause of decreased catch rates at Crawford State Fishing Lake in 2007. The discovery of LMBV in eight additional impoundments from 2008 to 2017 increased concern about the prevalence and effects of LMBV in Kansas. In response, the Kansas Department of Wildlife, Parks, and Tourism tested 25 Largemouth Bass Micropterus salmoides impoundments for the presence of LMBV. The objectives of this study were to quantify the incidence of LMBV and examine differences in population metrics (i.e., body condition, relative abundance, and growth). A total of 1,260 Largemouth Bass were collected by using standard spring electrofishing surveys, and sagittal otoliths were collected from all of the sampled fish to estimate growth rates. Of the 25 study impoundments, 14 tested positive for LMBV. There was no evidence of LMBV effects on body condition, relative abundance of quality-length fish, or growth rates. The initial dates of LMBV infection of Largemouth Bass in these impoundments are unknown. The LMBV-positive populations in Kansas may have been exposed to the virus many years ago, and the fish may be in the process of rebounding from any potential negative effects.
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- 2021
12. Comparison of Sectioned and Whole Otoliths for Estimating Bluegill Age
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Jeff D. Koch, Connor J. Chance-Ossowski, and Ben C. Neely
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0106 biological sciences ,Ecology ,010604 marine biology & hydrobiology ,Animal Science and Zoology ,Anatomy ,Biology ,010603 evolutionary biology ,01 natural sciences ,Lepomis macrochirus ,Ecology, Evolution, Behavior and Systematics ,Nature and Landscape Conservation - Abstract
Three readers independently assigned ages to 257 paired sectioned and whole Bluegill Lepomis macrochirus otoliths to examine between-reader precision of age estimates and to compare estimates obtained using the two otolith preparation methods. Percent exact between-reader agreement varied from 93.4% to 96.9% for sectioned otoliths and 92.2% to 94.2% for whole otoliths. Mean coefficient of variation values for between-reader comparisons were < 5.0% for all reader combinations and both otolith preparation methods. Exact agreement between paired whole and sectioned otoliths varied by reader from 82.8% to 85.2%; whereas coefficient of variation values ranged from 7.8% to 8.9%. The only significant departure from a 1:1 relationship for mean age estimates between the two preparation methods occurred for young fish in the estimates of one reader. This bias was not pervasive, as no significant bias was indicated in older fish. Our results suggest that age estimates obtained from sectioned and whole Bluegill otoliths are precise and the time and associated expense of mounting and sectioning Bluegill otoliths may not be necessary as whole otolith ages were generally concordant with sectioned ages to age 8 y.
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- 2019
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13. A Review of Marking and Tagging Methods for Blue Catfish, Channel Catfish, and Flathead Catfish
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Jeff D. Koch, Ben C. Neely, and Nicholas W. Kramer
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Fishery ,Ecology ,biology ,Channel (broadcasting) ,Management, Monitoring, Policy and Law ,Aquatic Science ,Flathead ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics ,Blue catfish ,Catfish - Published
- 2021
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14. Effects of Gizzard Shad Reduction on Relative Abundance, Growth, and Body Condition of Bluegills and Largemouth Bass in a Small Kansas Impoundment
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Ben C. Neely, Jeff D. Koch, and Sean T. Lynott
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0106 biological sciences ,geography ,food.ingredient ,Ecology ,geography.lake ,010604 marine biology & hydrobiology ,Management, Monitoring, Policy and Law ,Aquatic Science ,Biology ,010603 evolutionary biology ,01 natural sciences ,Gizzard shad ,Bass (fish) ,food ,Animal science ,Relative species abundance ,Ecology, Evolution, Behavior and Systematics ,Body condition - Published
- 2018
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15. Precision of Three Structures for Saugeye Age Estimation
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Jeff D. Koch, Ben C. Neely, and Bryan Sowards
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0106 biological sciences ,Dorsum ,Fin ,Ecology ,010604 marine biology & hydrobiology ,Coefficient of variation ,Management, Monitoring, Policy and Law ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,Sagittal plane ,Dorsal fin ,body regions ,medicine.anatomical_structure ,Age estimation ,Statistics ,medicine ,sense organs ,Ecology, Evolution, Behavior and Systematics ,Mathematics - Abstract
We evaluated precision of age estimates obtained from sagittal otoliths, scales, and dorsal fin spines from 341 saugeye (Walleye Sander vitreum × Sauger S. canadense) collected from six Kansas reservoirs. Between-reader agreement was greatest for otoliths, followed by dorsal spines, and then scales. Coefficient of variation values for between-reader comparisons for otoliths were 1.3–3.1; whereas, those for dorsal spines were 13.8–18.2. Between-reader comparisons for scales were most variable, with CV estimates between 19.9 and 23.1. Age estimates from otoliths aligned with age estimates from scales more often than those from dorsal spines; although, age estimate comparisons between structures were generally variable. Between-reader agreement for scales and fin rays decreased with increasing estimated age; however, agreement for otoliths generally remained high (i.e., >80%) through age 10. Given greater precision relative to other structures, we recommend the use of sectioned otoliths to estimate a...
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- 2018
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16. Estimation of paddlefish (Polyodon spathulaWalbaum, 1792) spawning habitat availability with consumer-grade sonar
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Jason D. Schooley and Ben C. Neely
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0106 biological sciences ,Estimation ,biology ,Spawning habitat ,04 agricultural and veterinary sciences ,Aquatic Science ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Sonar ,Fishery ,040102 fisheries ,Paddlefish ,0401 agriculture, forestry, and fisheries ,Spathula - Published
- 2017
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17. Freeze Brand Retention in Channel Catfish and Channel Catfish × Blue Catfish Hybrids
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Sean T. Lynott, Ben C. Neely, and Jeff D. Koch
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0106 biological sciences ,Veterinary medicine ,animal structures ,Ecology ,010604 marine biology & hydrobiology ,fungi ,04 agricultural and veterinary sciences ,Management, Monitoring, Policy and Law ,Aquatic Science ,Biology ,biology.organism_classification ,01 natural sciences ,Hatchery ,Fishery ,Stocking ,Fish anatomy ,Ictalurus ,Freeze brand ,040102 fisheries ,0401 agriculture, forestry, and fisheries ,health care economics and organizations ,Ecology, Evolution, Behavior and Systematics ,Blue catfish ,Catfish ,Hybrid - Abstract
We evaluated freeze brands on Channel Catfish Ictalurus punctatus and hybrid catfish (female Channel Catfish × male Blue Catfish I. furcatus) to determine suitability of the technique for identification of year-class on ictalurid catfishes. Freeze brands were applied to fish in a hatchery setting, and adipose fins were removed as a secondary mark. Marked fish were stocked into two Kansas reservoirs within 3 d after marking. Fish were sampled with a suite of gear types for 3 years after the initial stocking in 2013. All captured catfish were observed for the presence of a freeze brand and an adipose fin. A logistic regression model estimated 80% brand retention for Channel Catfish through 460 d. The logistic regression model for hybrid catfish brand retention as a function of days at large was not significant, but retention remained near 80% throughout the 3-year study period. Results suggest that freeze brands are suitable for marking Channel Catfish and hybrid catfish in natural systems when mark...
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- 2017
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18. Examination of the World Record Flathead Catfish Captured from Elk City Reservoir, Kansas, in May, 1998
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Sean T. Lynott and Ben C. Neely
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0106 biological sciences ,biology ,010604 marine biology & hydrobiology ,Wildlife ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Fishery ,Geography ,Ictiobus cyprinellus ,Environmental protection ,%22">Fish ,Flathead ,Pylodictis olivaris ,Recreation ,Catfish - Abstract
In 1998, a 123-pound flathead catfish (Pylodictis olivaris) was captured by a recreational angler from Elk City Reservoir, Montgomery County, Kansas. This fish was recognized as the all-tackle world record, and the record has persisted through the time this article was published in fall, 2016. The fish was frozen after capture until it was presented to Kansas Department of Wildlife, Parks, and Tourism in 2016 for further examination. It was concluded that the fish was at least 22 years old, grew rapidly, was most likely male, and had recently consumed a bigmouth buffalo (Ictiobus cyprinellus). Results presented herein provide evidence of rapid growth possible in flathead catfish and help to foster a greater understanding of the species' natural history.
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- 2016
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19. Resource selection by juvenile pallid sturgeonScaphirhynchus albus(Forbes and Richardson, 1905) in the channelized Missouri River, Nebraska, USA
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Ben C. Neely, Justin D. Haas, Brandon L. Eder, and J. D. Adams
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0106 biological sciences ,geography ,geography.geographical_feature_category ,Ecology ,010604 marine biology & hydrobiology ,Channelized ,04 agricultural and veterinary sciences ,Juvenile fish ,Aquatic Science ,Biology ,biology.organism_classification ,01 natural sciences ,Hatchery ,Fishery ,Sturgeon ,Habitat ,040102 fisheries ,0401 agriculture, forestry, and fisheries ,Juvenile ,Channel (geography) ,Scaphirhynchus albus - Abstract
Summary Habitat selection has been quantified for age-0 and adult pallid sturgeon Scaphirhynchus albus Bull. Illinois State Lab. Nat. Hist., 7, 1905, 37, but little is known regarding habitat use of the juvenile fish. The objective of this study was to quantify habitat use and selection of juvenile pallid sturgeon in the Missouri River, Nebraska, USA. Thirty-seven age-4 pallid sturgeon with transmitters were released in July of 2014, plus an additional 21 in September, with habitat monitored using biotelemetry. Age-1 and age-4 hatchery reared pallid sturgeon were found to avoid areas associated with the outside bend and thalweg habitats that were characterized by rapid water velocity (>1 ms−1), which accounted for 50% of the area in the channelized Missouri River. Age-1 pallid sturgeon selected an off-channel habitat and inside bend habitat while age-4 pallid sturgeon selected an off-channel and inside bend channel border habitat. Juvenile pallid sturgeon in unaltered rivers have been shown to associate with island tips and sand bars, habitat that is largely absent in the channelized Missouri River. This study indicates that juvenile pallid sturgeon in the Missouri River, Nebraska are selecting habitats with shallow water and slow water velocity, similar to those associated with island tips and sand bars in unaltered reaches.
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- 2016
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20. Utility of Reservoir Characteristics to Determine Minimum Sampling Effort Needed to Assess Sport Fish Populations in Kansas Reservoirs
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Michael E. Colvin, Jeff D. Koch, and Ben C. Neely
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0106 biological sciences ,Ecology ,010604 marine biology & hydrobiology ,Fish species ,Sampling (statistics) ,Sample (statistics) ,Management, Monitoring, Policy and Law ,Aquatic Science ,010603 evolutionary biology ,01 natural sciences ,Linear regression ,Statistics ,%22">Fish ,Environmental science ,Fisheries management ,Two sample ,Akaike information criterion ,Ecology, Evolution, Behavior and Systematics - Abstract
Effective reservoir fisheries management requires fish samples suitable for addressing objectives. These samples are typically attained with fish sampling gears using standardized protocols. Some standardized protocols for sampling reservoir fishes promote objective-based sampling, and many include a minimum number of gear deployments. This minimum number is often a function of reservoir surface area. However, reservoir size may not adequately predict the number of gear deployments needed to reach sample objectives. We used multiple linear regression to determine the relationships between the biological, chemical, and physical characteristics of reservoirs and the number of gear deployments needed to reach two sample objectives: (1) collecting 100 stock-length fish (N100), and (2) attaining relative SE of stock-length catch per effort (CPE) ≤25% (RSE25). These analyses were conducted using data from 34 Kansas reservoirs and six fish species. We used Akaike model averaging from a confidence model s...
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- 2016
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21. Evaluation of Paddlefish Harvest at Osawatomie Dam, Marais Des Cygnes River, Kansas, From 1992 to 2006
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Ben C. Neely and Paul Stockebrand
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0106 biological sciences ,010506 paleontology ,biology ,010607 zoology ,Fish species ,Introduced species ,biology.organism_classification ,01 natural sciences ,Snag ,Fishery ,Overexploitation ,Paddlefish ,Environmental science ,%22">Fish ,0105 earth and related environmental sciences - Abstract
Paddlefish (Polyodon spathula) are an ancient fish species native to large rivers in eastern Kansas. They were first managed in the state in the 1970s and several snag fisheries have since developed. Osawatomie Dam on the Marais des Cygnes River supports the second most popular Paddlefish fishery in Kansas behind Chetopa Dam on the Neosho River. Mandatory check of harvested fish occurred in the Marais des Cygnes River beneath Osawatomie Dam from 1992 to 2006. These data were recently summarized to quantify harvest during the study period, determine the influence of discharge on harvest, and evaluate effects of a minimum length limit. Mean annual harvest during the study period was 50 fish and annual harvest ranged from 0 fish in four years to 454 fish in 1999. Annual harvest was largely dependent on magnitude and duration of high flows near Osawatomie Dam as measured by the 75th percentile of mean daily discharge (m3sec-1) during annual snagging seasons but was not affected by regulation period. Mean eye-fork length (EFL) of harvested fish was 82 cm across the entire study period, but fish were larger after 2001 (mean = 98 cm) when an 86.4 cm EFL minimum length limit was implemented. These results provide insight into fishery characteristics at Osawatomie Dam and can be referenced for evaluations of this and other Paddlefish fisheries throughout the state.
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- 2020
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22. Evaluation of Precision and Sample Sizes Using Standardized Sampling in Kansas Reservoirs
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Ben C. Neely, Michael E. Colvin, and Jeff D. Koch
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food.ingredient ,Ecology ,biology ,White bass ,Sampling (statistics) ,Micropterus ,Management, Monitoring, Policy and Law ,Aquatic Science ,biology.organism_classification ,Fishery ,Bass (fish) ,food ,Standard error ,Electrofishing ,Ictalurus ,Ecology, Evolution, Behavior and Systematics ,Catfish - Abstract
We evaluated the precision of samples and the number of stock-length fish collected by means of standard methods used for sampling North American freshwater fishes from 2010 to 2013 in Kansas. Additionally, we used resampling procedures to determine the number of gear deployments needed to achieve a relative standard error (RSE) of 25% for the CPUE and collect 100 stock-length individuals. Median RSE of electrofishing samples was generally less than 25% for Largemouth Bass Micropterus salmoides in all sizes of reservoirs and for Channel Catfish Ictalurus punctatus in medium (251–1,000 acres) and large reservoirs (greater than 1,000 acres). The RSE estimates were generally >25% for Bluegill Lepomis macrochirus and crappies Pomoxis spp. collected in trap nets and palmetto bass (female Striped Bass Morone saxatilis × male White Bass M. chrysops) and Walleye Sander vitreus sampled in gill nets. With few exceptions, 100 stock-length individuals of all target species (e.g., Largemouth Bass, Bluegill, cr...
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- 2014
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23. Use of Geographic Information Systems by Fisheries Management Agencies
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Brandon L. Eder and Ben C. Neely
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Rate of return ,Fisheries science ,Geographic information system ,business.industry ,media_common.quotation_subject ,Environmental resource management ,Aquatic Science ,Work (electrical) ,Service (economics) ,Agency (sociology) ,Lack of knowledge ,Fisheries management ,business ,Nature and Landscape Conservation ,media_common - Abstract
Use of geographic information systems (GIS) in fisheries science has increased in prevalence since its introduction in the late 1980s, but use among and within fisheries management agencies has not been quantified. We surveyed 89 administrators of fisheries management agencies in the United States and Canada to determine the current status of GIS in fisheries management and received 54 responses (61% return rate). Survey respondents indicated that GIS was used to help manage fish populations, and 63% of respondents believed that GIS was either “very useful” or “extremely useful” for meeting agency objectives. However, most GIS work conducted by fisheries management agencies was executed by few individuals within the agency or by contracted service. Barriers preventing more widespread use by managers within agencies included lack of knowledge or training and limited time to use GIS in job duties. Our results suggest that GIS is an important tool for fisheries management. Further, GIS use within an...
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- 2013
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24. Estimating Geographic Variation in Allometric Growth and Body Condition of Blue Suckers with Quantile Regression
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Brian S. Cade, James W. Terrell, and Ben C. Neely
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biology ,Geographic variation ,Aquatic Science ,biology.organism_classification ,Regression ,Quantile regression ,Statistics ,Range (statistics) ,Spatial variability ,Allometry ,Cycleptus ,Ecology, Evolution, Behavior and Systematics ,Body condition ,Mathematics - Abstract
Increasing our understanding of how environmental factors affect fish body condition and improving its utility as a metric of aquatic system health require reliable estimates of spatial variation in condition (weight at length). We used three statistical approaches that varied in how they accounted for heterogeneity in allometric growth to estimate differences in body condition of blue suckers Cycleptus elongatus across 19 large-river locations in the central USA. Quantile regression of an expanded allometric growth model provided the most comprehensive estimates, including variation in exponents within and among locations (range = 2.88–4.24). Blue suckers from more-southerly locations had the largest exponents. Mixed-effects mean regression of a similar expanded allometric growth model allowed exponents to vary among locations (range = 3.03–3.60). Mean relative weights compared across selected intervals of total length (TL = 510–594 and 594–692 mm) in a multiplicative model involved the implicit...
- Published
- 2011
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25. A Proposed Change to Palmetto Bass Proportional Size Distribution Length Categories
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Spencer C. Dumont and Ben C. Neely
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education.field_of_study ,food.ingredient ,Ecology ,Morone saxatilis ,White bass ,Population ,Management, Monitoring, Policy and Law ,Aquatic Science ,Biology ,biology.organism_classification ,Life History Characteristics ,Fishery ,Bass (fish) ,food ,Stocking ,education ,Population dynamics of fisheries ,Ecology, Evolution, Behavior and Systematics - Abstract
Palmetto bass (female striped bass Morone saxatilis × male white bass M. chrysops) are an important sport fish in the Southeast and Midwest regions of the United States. Because palmetto bass populations must be established and maintained by regular stocking, population assessments are necessary to evaluate and refine stocking plans. A commonly used metric for fish population assessment is the proportional size distribution (PSD). However, the value of this metric is limited for palmetto bass because the original lengths designated for the stock (8 in), quality (12 in), preferred (15 in), memorable (20 in), and trophy length categories (25 in) were based on the old world-record length of 31 in, which is much shorter than the current length of 39 in. Thus, new lengths of 10, 16, 20, 24, and 28 in are proposed for assessing palmetto bass populations via PSD indices. These proposed lengths more accurately reflect the maximal length and life history characteristics (i.e., fast growing, short lived, a...
- Published
- 2011
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26. Determining Detection Requirements for Individuals Used in Categorical Resource Selection Analyses
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Mark A. Pegg, Brandon L. Eder, and Ben C. Neely
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education.field_of_study ,Computer science ,Population ,Sample (statistics) ,Aquatic Science ,computer.software_genre ,Field (computer science) ,Resource (project management) ,Telemetry ,A priori and a posteriori ,Data mining ,education ,computer ,Categorical variable ,Ecology, Evolution, Behavior and Systematics ,Selection (genetic algorithm) - Abstract
Resource selection analyses of telemetry data are often conducted on categorical measurements of use and availability. Refinement of early resource selection analysis techniques has resulted in use of individuals as the sample unit rather than the number of telemetry detections. However, the minimum number of telemetry detections required for an individual animal to be included as a sample unit must reflect the number of detections needed to accurately describe the individual's resource use. We developed a method to determine the minimum number of detections required to accurately describe categorical resource use of an animal. The mean standard selection ratio (MSSR) described herein can be used to effectively design telemetry projects and efficiently allocate field resources by knowing, a priori, the number of telemetry detections needed to explain resource selection for individual animals and ultimately for an animal population. Additionally, the MSSR technique can be used following data colle...
- Published
- 2010
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27. Seasonal resource selection by blue suckersCycleptus elongatus
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Mark A. Pegg, Gerald E. Mestl, and Ben C. Neely
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Shore ,geography ,geography.geographical_feature_category ,biology ,Ecology ,Aquatic ecosystem ,Channelized ,Aquatic Science ,biology.organism_classification ,Current (stream) ,Habitat ,Tributary ,Spring (hydrology) ,Cycleptus ,Ecology, Evolution, Behavior and Systematics - Abstract
Telemetry data were used to quantify seasonal resource selection and rank-preferred habitat types for blue suckers Cycleptus elongatus in the middle Missouri River and its tributaries, Iowa, Nebraska, South Dakota, U.S.A. Habitat diversity required by C. elongatus to complete its annual life-history cycle was evident by interseasonal variation in habitat selection. Tributaries and unchannelized portions of the middle Missouri River system were selected during the inferred spawning season (spring), habitats along shorelines in the channelized middle Missouri River were selected for postspawning (summer) and areas of reduced current were generally selected for the period preceding spawning (autumn). This study provides insight into mature C. elongatus behaviour throughout its annual life cycle. Furthermore, these results document the interseasonal variability in habitat selection of C. elongatus and highlight the need for development of habitat selection models for other imperilled fish species in aquatic systems affected by anthropogenic developments.
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- 2010
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28. Seasonal use distributions and migrations of blue sucker in the Middle Missouri River
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Ben C. Neely, Gerald E. Mestl, and Mark A. Pegg
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geography ,geography.geographical_feature_category ,Ecology ,biology ,Range (biology) ,Aquatic Science ,biology.organism_classification ,Spring (hydrology) ,Sucker ,Blue sucker ,%22">Fish ,Cycleptus ,Life history ,Ecology, Evolution, Behavior and Systematics - Abstract
– Blue suckers, Cycleptus elongatus, are a highly mobile species speculated to have spring spawning migrations. However, previous studies have not quantified seasonal migrations of blue suckers. Use distributions were calculated at 90% and 50% for three seasons to identify geographic space-use requirements of blue suckers. Mean 90% use distributions (±SE) varied from 8.1 km (±5.3 km) in summer to 78.6 km (±9.9 km) in fall to 174.9 km (±13.1 km) in spring. The great space-use requirements of blue suckers in fall and spring indicate that the species makes substantial upstream migrations in fall and also preceding spawning in spring, then return to a core area postspawning. The broad geographical range occupied by blue suckers throughout their life-history cycle emphasises the need for interjurisdictional management of the species and highlights potential detrimental effects of blocking fish passage.
- Published
- 2009
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29. A comparison of gastrically and surgically implanted telemetry transmitters in shovelnose sturgeon
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Kirk D. Steffensen, Mark A. Pegg, and Ben C. Neely
- Subjects
medicine.medical_specialty ,Ecology ,biology ,Observation period ,Anatomy ,Aquatic Science ,biology.organism_classification ,Fish measurement ,Surgery ,Aquatic organisms ,Sturgeon ,Telemetry ,medicine ,Scaphirhynchus ,%22">Fish - Abstract
Transmitter retention and the effects gastrically and surgically implanted telemetry transmitters had on condition and mortality of shovelnose sturgeon, Scaphirhynchus platorhynchus (Rafinesque), >450-mm fork length were examined. Four, 35-day trials were conducted with approximately equal numbers of control fish, fish receiving dummy transmitters gastrically and fish receiving dummy transmitters surgically. Four sturgeon expelled gastrically implanted transmitters during the observation period. Two mortalities occurred among fish receiving gastrically implanted transmitters during the study period and one mortality was recorded for control fish. No mortalities were recorded for fish receiving surgically implanted transmitters. Condition change (ΔKn) was significantly different between fish receiving surgical implantation (mean ΔKn ± SE; −5.17 ± 0.94), fish receiving gastric implantation (−2.98 ± 0.72) and control fish (−0.65 ± 1.09). Surgical transmitter implantation is recommended for telemetry studies on shovelnose sturgeon because of increased transmitter expulsion and occurrence of mortality in fish receiving gastric implantation.
- Published
- 2009
- Full Text
- View/download PDF
30. A Proposed Standard Weight Equation for Blue Suckers
- Author
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Martin J. Hamel, Kirk D. Steffensen, and Ben C. Neely
- Subjects
Percentile ,Ecology ,biology ,Quadratic model ,Management, Monitoring, Policy and Law ,Aquatic Science ,biology.organism_classification ,Combinatorics ,Geographic distribution ,Quadratic equation ,%22">Fish ,Cycleptus ,Ecology, Evolution, Behavior and Systematics ,Linear equation ,Mathematics - Abstract
Length and weight data were obtained from 46 populations of blue suckers Cycleptus elongatus (N = 8,811 fish) across the species' geographic distribution to develop a standard weight (W s) equation. The W s equation was derived using the empirical percentile technique applied to fish between 240 and 809 mm total length (TL). We calculated a quadratic model and a linear model to derive W s. The proposed 75th-percentile quadratic equation (metric units) is log10 W s = −2.980 + 0.977 log10TL + 0.461(log10TL)2, where W s is expressed in grams and TL is expressed in millimeters. The proposed English-equivalent 75th-percentile quadratic equation is log10 W s = −3.354 + 2.273 log10TL + 0.461(log10TL)2, where W s is expressed in pounds and TL is expressed in inches. The 75th-percentile linear equation (metric units) is log10 W s = −6.301 + 3.456 log10TL, and the proposed English equivalent is log10 W s = −4.104 + 3.456 log10TL.
- Published
- 2008
- Full Text
- View/download PDF
31. An Introduction to Free Geographic Information Systems in Fisheries Science
- Author
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Brandon L. Eder and Ben C. Neely
- Subjects
Fisheries science ,Geospatial analysis ,Geographic information system ,business.industry ,Computer science ,Environmental resource management ,Aquatic Science ,computer.software_genre ,GIS and public health ,Participatory GIS ,Traditional knowledge GIS ,Fisheries management ,Enterprise GIS ,business ,computer ,Nature and Landscape Conservation - Abstract
Geographic information systems (GIS) are powerful tools for analysis and interpretation of spatial data commonly encountered in fisheries science. We presented details of GIS use in fisheries management in a prior study and found cost to be a factor limiting GIS use. This article introduces fisheries managers to free or open-source GIS. Free or open-source GIS are readily available, powerful tools capable of performing a variety of spatial analyses. We strongly encourage managers wishing to perform spatial analyses, but who are unable to purchase software, to consider free GIS.
- Published
- 2015
- Full Text
- View/download PDF
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