@article{parker_coleman_carlson_fischer_2023, title={Characterization of fish assemblages in eleven multi-use reservoirs from North Carolina, USA}, volume={38}, ISSN={["2156-6941"]}, DOI={10.1080/02705060.2023.2241494}, abstractNote={Managing impounded river systems is a recurring challenge for aquatic resource professionals because reservoirs serve multiple functions with different ecological and socioeconomic outcomes. However, research on fishes in reservoirs has disproportionally focused on recreationally and economically important species, with less attention directed toward fish assemblages despite the potential for management at the assemblage level. As such, evaluation of relationships between reservoir fish assemblages and biotic and abiotic factors and testing whether assemblage structure is affected by changing environmental conditions may deepen ecological understanding and provide insights for reservoir fisheries management. Our overall objective was to assess these relationships in 11 reservoirs from North Carolina, USA. We sampled fish assemblages in the reservoirs, which spanned five river basins representing a range of habitat conditions, using experimental gillnets and pulsed DC nighttime electrofishing. Multivariate statistical analyses indicated that taxonomic differences in fish assemblage composition among river basins followed a gradient of productivity. The top contributing species to reservoir dissimilarity were bluegill (Lepomis macrochirus), gizzard shad (Dorosoma cepedianum), black crappie (Pomoxis nigromaculatus), and white perch (Morone americana). These four species were positively associated with factors that reflect increasing eutrophic conditions in the 11 reservoirs and could, therefore, serve as indicators of reservoir productivity, anthropogenic influence, and fish assemblage structure, in addition to their key role in reservoir fisheries management. Whereas ­fisheries research has historically focused on assessing fish ­populations, our results illustrate the ecological and management insights derived from simultaneously collecting assemblage- and population-level data. Research on reservoir fish assemblages in relation to biotic and abiotic conditions may help advance fish ecology and management alike.}, number={1}, journal={JOURNAL OF FRESHWATER ECOLOGY}, author={Parker, Stephen W. and Coleman, Tyler Steven and Carlson, Andrew K. and Fischer, Jesse R.}, year={2023}, month={Jul} }
 @article{engman_kwak_fischer_2021, title={Big runs of little fish: first estimates of run size and exploitation in an amphidromous postlarvae fishery}, volume={78}, ISSN={["1205-7533"]}, DOI={10.1139/cjfas-2020-0093}, abstractNote={Amphidromous postlarvae fisheries (APFs) constitute a globally widespread and distinctive class of fishery that is largely unknown to fisheries science. APFs harvest ocean-to-river migrating fishes at smaller sizes and younger ages than any other class of fishery. No quantitative estimates of run size and exploitation exist, which are needed to evaluate APF sustainability. Migrating amphidromous fishes are vectors of marine nutrients to estuaries and rivers, and run size quantification is needed to reveal the magnitude of this ecosystem function. We present a novel adaptation of trapezoidal area under the curve methods, which we apply in a Caribbean case study to yield the first simultaneous estimates of an APF run size and harvest. Run size estimates ranged 7.3–9.4 million postlarvae (926–1184 kg), and exploitation estimates (5.8%–7.0%) indicated low harvest in the Río Grande de Arecibo, Puerto Rico. Our representative run size estimates reveal that amphidromous postlarvae transport hundreds of kilograms of biomass per month to an estuary and river, the first empirical evidence that amphidromous migrations are large-magnitude material subsidies of lotic ecosystems.}, number={7}, journal={CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES}, author={Engman, Augustin C. and Kwak, Thomas J. and Fischer, Jesse R.}, year={2021}, month={Jul}, pages={905–912} }
 @article{flowers_kwak_fischer_cope_rash_besler_2019, title={Behavior and Survival of Stocked Trout in Southern Appalachian Mountain Streams}, volume={148}, ISSN={["1548-8659"]}, DOI={10.1002/tafs.10113}, number={1}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Flowers, H. Jared and Kwak, Thomas J. and Fischer, Jesse R. and Cope, W. Gregory and Rash, Jacob M. and Besler, Douglas A.}, year={2019}, month={Jan}, pages={3–20} }
 @article{engman_kwak_fischer_lilyestrom_2019, title={Fish Assemblages and Fisheries Resources in Puerto Rico's Riverine Estuaries}, volume={11}, ISSN={["1942-5120"]}, DOI={10.1002/mcf2.10072}, abstractNote={Tropical estuaries are diverse and productive habitats with respect to their fish assemblages and associated fisheries, but these ecosystems and fisheries are imperiled by multiple anthropogenic threats. Despite the economic, social, and biodiversity value of tropical estuarine fish assemblages, they are poorly understood, especially those on Caribbean islands. We sampled the fish assemblages of four estuaries that were broadly representative of riverine estuaries in Puerto Rico, including the Río Grande de Arecibo, Río Espiritu Santo, Río Mameyes, and Río Sabana. We used a combination of passive (gill nets) and active (seine) gears at locations that spanned the salinity gradient of each estuary during July–October 2013–2014 (rainy season) and March 2015 (dry season). Fish species richness among the riverine estuaries varied from 18 to 29 and was highest in the Río Espiritu Santo estuary. Nonmetric multidimensional scaling differentiated fish assemblages among estuaries but not by season or consistently by location within an estuary. Spearman's rank correlation analysis also revealed dissimilarity among each estuary's fish assemblage, as most pairwise correlations between the species compositions were not significant. We identified common and widespread species among estuaries, including sport fishes, such as the Tarpon Megalops atlanticus and Common Snook Centropomus undecimalis. As the only multi-river assessment of riverine estuary fish assemblages in Puerto Rico, our results provide the best available information about the spatial variability of assemblages and fisheries resources. This information will benefit future conservation and fisheries management efforts, which are needed due to increasing anthropogenic impacts, such as illegal harvest, invasive species, and water diversions.}, number={2}, journal={MARINE AND COASTAL FISHERIES}, author={Engman, Augustin C. and Kwak, Thomas J. and Fischer, Jesse R. and Lilyestrom, Craig G.}, year={2019}, month={Apr}, pages={189–201} }
 @article{fischer_kwak_flowers_cope_rash_besler_2019, title={Growth, Condition, and Trophic Relations of Stocked Trout in Southern Appalachian Mountain Streams}, volume={148}, ISSN={["1548-8659"]}, url={https://doi.org/10.1002/tafs.10170}, DOI={10.1002/tafs.10170}, abstractNote={Stream trout fisheries are among the most popular and valuable in the United States, but many are dependent on hatcheries to sustain fishing and harvest. Thus, understanding the ecology of hatchery-reared trout stocked in natural environments is fundamental to management. We evaluated the growth, condition, and trophic relations of Brook Trout Salvelinus fontinalis, Brown Trout Salmo trutta, and Rainbow Trout Oncorhynchus mykiss that were stocked in southern Appalachian Mountain streams in western North Carolina. Stocked and wild (naturalized) trout were sampled over time (monthly; September 2012–June 2013) to compare condition and diet composition and to evaluate temporal dynamics of trophic position with stable isotope analysis. Relative weights (Wr) of stocked trout were inversely associated with their stream residence time but were consistently higher than those of wild trout. Weight loss of harvested stocked trout was similar among species and sizes, but fish stocked earlier lost more weight. Overall, 40% of 141 stomachs from stocked trout were empty compared to 15% of wild trout stomachs (N = 26). We identified a much higher rate of piscivory in wild trout (18 times that of stocked trout), and wild trout were 4.3 times more likely to consume gastropods relative to stocked trout. Hatchery-reared trout were isotopically similar to co-occurring wild fish for both δ13C and δ15N values but were less variable than wild trout. Differences in sulfur isotope ratios (δ34S) between wild and hatchery-reared trout indicated that the diets of wild fish were enriched in δ34S relative to the diets of hatchery-reared fish. Although hatchery-reared trout consumed prey items similar to those of wild fish, differences in consumption or behavior (e.g., reduced feeding) may have resulted in lower condition and negative growth. These findings provide critical insight on the trophic dynamics of stocked trout and may assist in developing and enhancing stream trout fisheries.}, number={4}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, publisher={Wiley}, author={Fischer, Jesse R. and Kwak, Thomas J. and Flowers, H. Jared and Cope, W. Gregory and Rash, Jacob M. and Besler, Douglas A.}, year={2019}, month={Jul}, pages={771–784} }
 @article{fischer_quist_2019, title={Understanding Fish Assemblage Structure in Lentic Ecosystems: Relative Effects of Abiotic Factors and Management Legacies}, volume={39}, ISSN={["1548-8675"]}, DOI={10.1002/nafm.10304}, abstractNote={We investigated associations of fish assemblages and habitat characteristics (e.g., morphology and water chemistry) from 45 natural lakes and reservoirs in Iowa to determine whether species or trophic guild composition and environmental correlations were concordant between waterbodies of different origins. Overall, fish assemblage composition between natural lakes and reservoirs was consistently dissimilar based on a permutational multivariate ANOVA. Species composition from nonmetric multidimensional scaling ordinations for reservoirs was correlated with a variety of limnological and physical characteristics, whereas species composition and trophic composition of natural lakes were weakly associated with habitat characteristics. Species richness was positively related to waterbody and watershed size for reservoirs but not for natural lakes. Conversely, species richness was negatively correlated with increasing eutrophic conditions in natural lakes but not in reservoirs. Overall, distinct differences in assemblage composition were observed between natural and artificial lentic ecosystems and may have resulted from underlying differences in limnological, physical, and anthropogenic influences between systems. Dissimilar management legacies between waterbody types, such as limited or no stocking of nonrecreationally important species and the use of piscicides, may have additionally had overriding effects on the observed assemblage–environmental relationships. For instance, lower trophic richness and species richness in reservoirs appeared to have resulted from replacement of a diversity of small-bodied native species by relatively few commonly stocked sport fishes. Our results emphasize the need to consider waterbody origin and the potential influence of historical or current management strategies on fish assemblage characterization and subsequent inferences made from environmental correlations.}, number={4}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Fischer, Jesse R. and Quist, Michael C.}, year={2019}, month={Aug}, pages={607–624} }
 @article{fischer_bakevich_shea_pierce_quist_2018, title={Floods, drying, habitat connectivity, and fish occupancy dynamics in restored and unrestored oxbows of West Central Iowa, USA}, volume={28}, ISSN={1052-7613}, url={http://dx.doi.org/10.1002/AQC.2896}, DOI={10.1002/AQC.2896}, abstractNote={In the agricultural landscape of the Midwestern USA, waterways are highly altered. Oxbows are among the few remaining off-channel habitats associated with streams, supporting fish assemblages that include the endangered Topeka shiners Notropis topeka in portions of their remaining range. Oxbow restorations seek to increase the number and quality of oxbows for Topeka shiners. For oxbows to provide optimal habitat, periods of isolation from streams and connection with streams during floods are necessary. Water levels and patterns of drying and hydrological connectivity between 12 oxbows and their neighboring streams in West Central Iowa were continuously monitored from May to October 2011, and fish assemblages were assessed for responses to the differing hydrodynamics using dynamic occupancy modelling. The 12 oxbows exhibited varied hydrodynamics and connectivity with streams. Two oxbows never contained fish; these oxbows never flooded and were among the three oxbows that were dry for the longest periods. Occupancy modelling suggested that connection with the stream via floods significantly increased the probability of colonization, and low water level increased the probability of local extinction from oxbows. Thirteen of the 16 fish species encountered had detection probabilities over 60%, and eight had detection probabilities over 90%, including Topeka shiners. None of the five previously restored oxbows flooded; all five contained fish, but only one contained Topeka shiners. Three of the four oxbows containing Topeka shiners flooded and all four dried at least once. These results suggest that planning for future oxbow restorations should consider: (i) sites that flood frequently; and (ii) construction methods promoting alternating periods of isolation from and connection with streams.}, number={3}, journal={Aquatic Conservation: Marine and Freshwater Ecosystems}, publisher={Wiley}, author={Fischer, Jesse R. and Bakevich, Bryan D. and Shea, Colin P. and Pierce, Clay L. and Quist, Michael C.}, year={2018}, month={Apr}, pages={630–640} }
 @article{engman_fischer_kwak_walter_2017, title={Diurnal feeding behavior of the American Eel Anguilla rostrata}, volume={13}, ISSN={2352-2496}, url={http://dx.doi.org/10.1016/J.FOOWEB.2017.10.003}, DOI={10.1016/J.FOOWEB.2017.10.003}, abstractNote={Despite potential to structure ecosystem food webs through top-down effects, the trophic interactions of the American Eel Anguilla rostrata remain largely understudied. All previous research on the trophic ecology of American Eel in inland aquatic ecosystems has been conducted in temperate continental regions of the species' range. These studies have led to a paradigm that American Eel is a nocturnally active benthic predator, which most commonly consumes benthic invertebrates. Tropical island streams and rivers have habitats and communities that are distinct from temperate counterparts, but comprise a large portion of the adult habitat in the American Eel's range. We documented a previously undescribed diurnal feeding behavior by American Eel in a Caribbean river and demonstrate that this behavior, and a shift toward more frequent daytime feeding, is linked to periodic mass migrations of postlarvae of amphidromous fish taxa, including the Sicydiine goby Sicydium spp. Our findings indicate that periodic mass migrations of amphidromous postlarvae could function as a potentially important food source for American Eel in tropical regions of its distribution, despite the intermittence of availability. Furthermore, this suggests that the American Eel plays an important role in the structure of tropical lotic food webs through top-down effects that are potentially augmented by instream barriers.}, journal={Food Webs}, publisher={Elsevier BV}, author={Engman, Augustin C. and Fischer, Jesse R. and Kwak, Thomas J. and Walter, Michael J.}, year={2017}, month={Dec}, pages={27–29} }
 @article{fischer_koch_2017, title={Fin rays and spines}, journal={Age and Growth of Fishes: Principles and Techniques}, author={Fischer, J. R. and Koch, J. D.}, year={2017}, pages={173–187} }
 @article{engman_kwak_fischer_2017, title={Recruitment phenology and pelagic larval duration in Caribbean amphidromous fishes}, volume={36}, ISSN={["2161-9565"]}, DOI={10.1086/694176}, abstractNote={Amphidromous fishes are major components of oceanic tropical island stream ecosystems, such as those of the Caribbean island, Puerto Rico. Fishes with this life history face threats related to the requirement for connectivity between freshwater and marine environments during early life stages. Pelagic larval duration and recruitment phenology are 2 early life-history processes that are crucial for the biology, ecology, conservation, and management of amphidromous fishes. However, these processes are understudied in the Caribbean in general and have never been quantified in Puerto Rico. We quantified recruit abundance, recruitment phenology, and pelagic larval duration of several Caribbean amphidromous fish species in multiple rivers in Puerto Rico and explored the effects of environmental variables on recruit abundances. Two fish taxa—sirajo goby (Sicydium spp.) and River Goby (Awaous banana)—were exceptionally abundant as postlarvae and recruited to Caribbean rivers in pulsed migration episodes that were periodic at annual and lunar scales. Sirajo goby and River Goby recruit abundances varied among rivers, were greater at sunrise than at sunset, and were positively related to river discharge. The pelagic larval duration of 4 fish taxa ranged from a minimum of 28 d to a maximum of 103 d with means between 43 ± 7 d (SD) and 65 ± 11 d. We identified the last-quarter moon phase during the months of June through January as periods of maximum amphidromous fish recruitment to freshwater streams. The results and conclusions of our study can be applied to identify critical times to maintain river–ocean connectivity and stream flow for the benefit of the amphidromous fish population dynamics, stream ecology, and natural resources of the Caribbean.}, number={4}, journal={FRESHWATER SCIENCE}, author={Engman, Augustin C. and Kwak, Thomas J. and Fischer, Jesse R.}, year={2017}, month={Dec}, pages={851–865} }
 @inproceedings{kwak_engman_fischer_lilyestrom_2016, title={Drivers of Caribbean freshwater ecosystems and fisheries}, booktitle={Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference}, author={Kwak, T. J. and Engman, A. C. and Fischer, J. R. and Lilyestrom, C. G.}, year={2016}, pages={219–232} }
 @article{meyer_phelps_fischer_fincel_hamel_krogman_lang_neebling_pierce_stubbs_2015, title={Aiming to Support Young Professionals}, volume={40}, ISSN={0363-2415 1548-8446}, url={http://dx.doi.org/10.1080/03632415.2015.1008695}, DOI={10.1080/03632415.2015.1008695}, abstractNote={FisheriesVolume 40, Issue 3 p. 108-108 Fisheries Management Section Aiming to Support Young Professionals for the YPC Young Professional Committee Members: Hilary Meyer, Hilary Meyer Hilary.Meyer@state.sd.usSearch for more papers by this authorQuinton Phelps, Quinton Phelps (Chair) Quinton.Phelps@mdc.mo.govSearch for more papers by this authorJesse Fischer, Jesse Fischer (Education Section) jessefischer@gmail.comSearch for more papers by this authorMark Fincel, Mark Fincel Mark.Fincel@state.sd.usSearch for more papers by this authorMarty Hamel, Marty Hamel mhamel2@unl.eduSearch for more papers by this authorRebecca Krogman, Rebecca Krogman (Education Section) Rebecca.Krogman@dnr.iowa.govSearch for more papers by this authorTom Lang, Tom Lang Tom.Lang@tpwd.state.tx.usSearch for more papers by this authorTravis Neebling, Travis Neebling Travis.Neebling@wyo.govSearch for more papers by this authorLandon Pierce, Landon Pierce (Student Subsection of the Education Section) Landon_Pierce@fws.govSearch for more papers by this authorTyler Stubbs, Tyler Stubbs Tylers@mdwfp.state.ms.usSearch for more papers by this author for the YPC Young Professional Committee Members: Hilary Meyer, Hilary Meyer Hilary.Meyer@state.sd.usSearch for more papers by this authorQuinton Phelps, Quinton Phelps (Chair) Quinton.Phelps@mdc.mo.govSearch for more papers by this authorJesse Fischer, Jesse Fischer (Education Section) jessefischer@gmail.comSearch for more papers by this authorMark Fincel, Mark Fincel Mark.Fincel@state.sd.usSearch for more papers by this authorMarty Hamel, Marty Hamel mhamel2@unl.eduSearch for more papers by this authorRebecca Krogman, Rebecca Krogman (Education Section) Rebecca.Krogman@dnr.iowa.govSearch for more papers by this authorTom Lang, Tom Lang Tom.Lang@tpwd.state.tx.usSearch for more papers by this authorTravis Neebling, Travis Neebling Travis.Neebling@wyo.govSearch for more papers by this authorLandon Pierce, Landon Pierce (Student Subsection of the Education Section) Landon_Pierce@fws.govSearch for more papers by this authorTyler Stubbs, Tyler Stubbs Tylers@mdwfp.state.ms.usSearch for more papers by this author First published: 25 March 2015 https://doi.org/10.1080/03632415.2015.1008695 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume40, Issue3March 2015Pages 108-108 RelatedInformation}, number={3}, journal={Fisheries}, publisher={Wiley}, author={Meyer, Hilary and Phelps, Quinton and Fischer, Jesse and Fincel, Mark and Hamel, Marty and Krogman, Rebecca and Lang, Tom and Neebling, Travis and Pierce, Landon and Stubbs, Tyler}, year={2015}, month={Mar}, pages={108–108} }
 @article{carlson_fischer_pierce_dembkowski_colvin_kerns_fore_2015, title={Purpose, History, and Importance of the Student Angle}, volume={40}, ISSN={["1548-8446"]}, DOI={10.1080/03632415.2014.964399}, abstractNote={FisheriesVolume 40, Issue 2 p. 81-83 Student Angle Purpose, History, and Importance of the Student Angle Andrew K. Carlson, Andrew K. Carlson President of Student Subsection [email protected] NPBL 138, Box 2140 B, Department of Natural Resource Management, South Dakota State University, Brookings, SD, 57007Search for more papers by this authorJesse R. Fischer, Jesse R. Fischer Past President of Student Subsection David Clark Labs, Campus Box 7617, Department of Applied Ecology, North Carolina State University, Raleigh, NC, 27695Search for more papers by this authorLandon L. Pierce, Landon L. Pierce Past President of Student Subsection 302 Anheuser-Busch Natural Resources Building, University of Missouri, Columbia, MO, 65211Search for more papers by this authorDan J. Dembkowski, Dan J. Dembkowski Past President of Student Subsection NPBL 138, Box 2140 B, Department of Natural Resource Management, South Dakota State University, Brookings, SD, 57007Search for more papers by this authorMichael E. Colvin, Michael E. Colvin Past President of Student Subsection 104 Nash Hall, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, 97331-3803Search for more papers by this authorJanice A. Kerns, Janice A. Kerns Past Secretary-Treasurer of Student Subsection Fisheries Analysis Center, Wisconsin Cooperative Fishery Research Unit, College of Natural Resources, University of Wisconsin-Stevens Point, 800 Reserve St., Stevens Point, WI, 54481Search for more papers by this authorJeffrey D. Fore, Jeffrey D. Fore Past President of Student Subsection The Nature Conservancy, West Tennessee Program Office, Jackson, TN, 38305Search for more papers by this author Andrew K. Carlson, Andrew K. Carlson President of Student Subsection [email protected] NPBL 138, Box 2140 B, Department of Natural Resource Management, South Dakota State University, Brookings, SD, 57007Search for more papers by this authorJesse R. Fischer, Jesse R. Fischer Past President of Student Subsection David Clark Labs, Campus Box 7617, Department of Applied Ecology, North Carolina State University, Raleigh, NC, 27695Search for more papers by this authorLandon L. Pierce, Landon L. Pierce Past President of Student Subsection 302 Anheuser-Busch Natural Resources Building, University of Missouri, Columbia, MO, 65211Search for more papers by this authorDan J. Dembkowski, Dan J. Dembkowski Past President of Student Subsection NPBL 138, Box 2140 B, Department of Natural Resource Management, South Dakota State University, Brookings, SD, 57007Search for more papers by this authorMichael E. Colvin, Michael E. Colvin Past President of Student Subsection 104 Nash Hall, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, 97331-3803Search for more papers by this authorJanice A. Kerns, Janice A. Kerns Past Secretary-Treasurer of Student Subsection Fisheries Analysis Center, Wisconsin Cooperative Fishery Research Unit, College of Natural Resources, University of Wisconsin-Stevens Point, 800 Reserve St., Stevens Point, WI, 54481Search for more papers by this authorJeffrey D. Fore, Jeffrey D. Fore Past President of Student Subsection The Nature Conservancy, West Tennessee Program Office, Jackson, TN, 38305Search for more papers by this author First published: 25 February 2015 https://doi.org/10.1080/03632415.2014.964399Citations: 1 All authors are current or former members of the AFS Student Subsection of the Education Section Executive Committee. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article. REFERENCES M., Allen 1993. Guide to choosing a graduate school. Fisheries 18(2): 30– 31. E., Chenoweth 2013. Trend lines to headlines: a scientist's foray into journalism. Fisheries 38(11): 510– 511. D. J., Isaak 1998. Science and graduate research. Fisheries 23(4): 29. D. A., James 2011. The academic road less traveled. Fisheries 36(7): 351– 352. M., Jones 2002. To intern or not to intern. Fisheries 27(4): 29. R., Neumann 1993. Networking at AFS annual meeting has benefits. Fisheries 18(9): 44. C. M., O'Connor 2012. How to find a good graduate advisor and make the most of graduate school. Fisheries 37(3): 126– 128. A. S., Overton, T. R. Reinert, and C. R. Ruetz. 2000. Keeping the communication lines open between you and your graduate committee. Fisheries 25(10): 41– 43. L., Reynolds 1994. Philosophizing about hypothesizing. In Fisheries 19(4): 36. Citing Literature Volume40, Issue2February 2015Pages 81-83 ReferencesRelatedInformation}, number={2}, journal={FISHERIES}, author={Carlson, Andrew K. and Fischer, Jesse R. and Pierce, Landon L. and Dembkowski, Dan J. and Colvin, Michael E. and Kerns, Janice A. and Fore, Jeffrey D.}, year={2015}, month={Feb}, pages={81–83} }
 @article{fischer_quist_2014, title={Characterizing lentic freshwater fish assemblages using multiple sampling methods}, volume={186}, ISSN={["1573-2959"]}, DOI={10.1007/s10661-014-3711-z}, number={7}, journal={ENVIRONMENTAL MONITORING AND ASSESSMENT}, author={Fischer, Jesse R. and Quist, Michael C.}, year={2014}, month={Jul}, pages={4461–4474} }
 @article{fischer_quist_2014, title={Erratum to: Characterizing lentic freshwater fish assemblages using multiple sampling methods}, volume={186}, ISSN={0167-6369 1573-2959}, url={http://dx.doi.org/10.1007/S10661-014-3782-X}, DOI={10.1007/S10661-014-3782-X}, number={7}, journal={Environmental Monitoring and Assessment}, publisher={Springer Science and Business Media LLC}, author={Fischer, Jesse R. and Quist, Michael C.}, year={2014}, month={May}, pages={4475–4477} }
 @article{fischer_quist_2014, title={Gear and Seasonal Bias Associated with Abundance and Size Structure Estimates for Lentic Freshwater Fishes}, volume={5}, ISSN={["1944-687X"]}, DOI={10.3996/082013-jfwm-054}, abstractNote={Abstract All freshwater fish sampling methods are biased toward particular species, sizes, and sexes and are further influenced by season, habitat, and fish behavior changes over time. However, little is known about gear-specific biases for many common fish species because few multiple-gear comparison studies exist that have incorporated seasonal dynamics. We sampled six lakes and impoundments representing a diversity of trophic and physical conditions in Iowa, USA, using multiple gear types (i.e., standard modified fyke net, mini-modified fyke net, sinking experimental gill net, bag seine, benthic trawl, boat-mounted electrofisher used diurnally and nocturnally) to determine the influence of sampling methodology and season on fisheries assessments. Specifically, we describe the influence of season on catch per unit effort, proportional size distribution, and the number of samples required to obtain 125 stock-length individuals for 12 species of recreational and ecological importance. Mean catch per unit effort generally peaked in the spring and fall as a result of increased sampling effectiveness in shallow areas and seasonal changes in habitat use (e.g., movement offshore during summer). Mean proportional size distribution decreased from spring to fall for white bass Morone chrysops, largemouth bass Micropterus salmoides, bluegill Lepomis macrochirus, and black crappie Pomoxis nigromaculatus, suggesting selectivity for large and presumably sexually mature individuals in the spring and summer. Overall, the mean number of samples required to sample 125 stock-length individuals was minimized in the fall with sinking experimental gill nets, a boat-mounted electrofisher used at night, and standard modified nets for 11 of the 12 species evaluated. Our results provide fisheries scientists with relative comparisons between several recommended standard sampling methods and illustrate the effects of seasonal variation on estimates of population indices that will be critical to the future development of standardized sampling methods for freshwater fish in lentic ecosystems.}, number={2}, journal={JOURNAL OF FISH AND WILDLIFE MANAGEMENT}, author={Fischer, Jesse R. and Quist, Michael C.}, year={2014}, month={Dec}, pages={394–412} }
 @article{fischer_krogman_quist_2013, title={Influences of native and non-native benthivorous fishes on aquatic ecosystem degradation}, volume={711}, ISSN={0018-8158 1573-5117}, url={http://dx.doi.org/10.1007/S10750-013-1483-Z}, DOI={10.1007/S10750-013-1483-Z}, abstractNote={Invasive common carp Cyprinus carpio has long been identified as a contributor to water quality deterioration, disrupted ecosystem processes, and shifts in biological assemblage structure. In contrast, little information is available regarding the effects of native benthivorous species on aquatic systems despite their functional similarity to common carp. Effects of common carp and the native black bullhead Ameiurus melas on sediment resuspension, nutrient concentrations, macrophytes, and assemblage structure of zooplankton and macroinvertebrates, were experimentally evaluated. We observed decreased water clarity, increased nutrient concentrations, decreased macrophyte biomass, and decreased benthic macroinvertebrate abundance and biomass associated with common carp, regardless of the presence of black bullhead. In contrast, black bullhead increased total phosphorus, and chlorophyll a concentrations and copepod abundance, but had little or no effect on other measured water quality and biological variables when compared to control conditions. Overall, experimental results suggest that although black bullhead tend to be tolerant of degraded ecosystems, they are not a source of physical changes to the environment known to be responsible for perpetuating degraded water quality (e.g., stable state shifts). Therefore, increased abundance of native species, such as black bullhead, following the invasion of common carp, may serve as an indicator of ecological conditions and should not to be assumed as causative.}, number={1}, journal={Hydrobiologia}, publisher={Springer Science and Business Media LLC}, author={Fischer, Jesse R. and Krogman, Rebecca M. and Quist, Michael C.}, year={2013}, month={Mar}, pages={187–199} }
 @article{mork_bisping_fischer_quist_2009, title={Population Characteristics of Black Bullhead (Ameiurus melas) in Iowa Natural Lakes}, volume={24}, ISSN={0270-5060 2156-6941}, url={http://dx.doi.org/10.1080/02705060.2009.9664341}, DOI={10.1080/02705060.2009.9664341}, abstractNote={ABSTRACT Black bullhead (Ameiurus mefas) populations in three natural lakes in northwestern Iowa were sampled to describe abundance, size structure, condition, mortality, recruitment variability, and growth in relation to a range of physical and limnological conditions. Six-hundred-and-fifty-three black bullhead were sampled with modified fyke nets during summer 2008 from Silver Lake, Lake Minnewashta, and West Okoboji Lake. Catch-per-unit-effort of black bullhead in Silver Lake (21.9 fish per net-night; fish/NN) was significantly higher than in Lake Minnewashta (P<0.0l; 10.4 fish/NN) and West Okoboji Lake (P<0.01: 5.6 fish/NN). Proportional size distribution (PSD) was similar among populations, but PSD of preferred-length fish in Silver Lake was much greater than in the other lakes. Mean relative weights were generally high across all lakes (90–92) but were highest in Silver Lake. Total annual mortality was highest in Lake Minnewashta (79%) and lowest in Silver Lake (24%). Recruitment variability of black bullhead, measured with the recruitment variability index, was 0.69 in West Okoboji Lake, 0.62 in Lake Minnewashta, and 0.47 in Silver Lake. Black bullhead length at age 3 differed (P<0.01) among lakes and was highest in Silver Lake (274 mm) followed by Lake Minnewashta (247 mm) and West Okoboji Lake (228 mm). Silver Lake is considered to have the poorest water quality of the study lakes due to high nutrient concentrations and low water clarity. The influence of black bullhead on water quality conditions is unknown, but our results suggest that these conditions are ideal for black bullhead populations in Iowa lakes.}, number={4}, journal={Journal of Freshwater Ecology}, publisher={Informa UK Limited}, author={Mork, Matthew D. and Bisping, Scott M. and Fischer, Jesse R. and Quist, Michael C.}, year={2009}, month={Dec}, pages={635–644} }
 @article{paukert_schloesser_fischer_eitzmann_pitts_thornbrugh_2008, title={Effect of Instream Sand Dredging on Fish Communities in the Kansas River USA: Current and Historical Perspectives}, volume={23}, ISSN={0270-5060 2156-6941}, url={http://dx.doi.org/10.1080/02705060.2008.9664250}, DOI={10.1080/02705060.2008.9664250}, abstractNote={ABSTRACT Relatively few studies have examined the ecological effects of instream sand and gravel mining which occurs in many streams and rivers worldwide. The objective of this study was to evaluate fish community composition at sand dredged and unmodified (control) sites in the Kansas River, Kansas. Fish and habitat sampling were conducted at two control sites and one dredged site in September 1979 and 1980. The same sites and one additional dredged site were sampled in September 2006. In 2006, dredged sites were deeper and had slower current velocities than control sites. Similarity indices determined that fish community at control sites in 2006 were 80% similar to the same sites in 1979 and 1980, despite 26 years between sampling. Dredged sites had more variable species composition, but one site still had large-river species (blue sucker shovelnose sturgeon), which were sampled above the actual dredge in fast shallow water. Native river fish species were similarly present in 1979–1980 and 2006, but lentie and non-native fishes (e.g., centrarchids), although still in low abundance, increased in 2006 particularly in dredged sites. These results suggest that sand dredging provided habitats that were suitable for lentic fishes, but other anthropogenie effects (reservoir construction urbanization) also likely contributed to fish assemblage changes in the Kansas River}, number={4}, journal={Journal of Freshwater Ecology}, publisher={Informa UK Limited}, author={Paukert, Craig and Schloesser, Joshua and Fischer, Jesse and Eitzmann, Jeff and Pitts, Kristen and Thornbrugh, Darren}, year={2008}, month={Dec}, pages={623–633} }
 @article{brinkley_fischer_paukert_2008, title={The Effect of Fixative an Total Length of Small-Bodied Stream Fishes}, volume={23}, ISSN={0270-5060 2156-6941}, url={http://dx.doi.org/10.1080/02705060.2008.9664227}, DOI={10.1080/02705060.2008.9664227}, abstractNote={ABSTRACT Longnose dace (Rhinichthys cataructae). red shiner (Cyprinella futrensis), and green sunfish (Lepomis cyanellus) were fixed in 5% and 10% fonnalin and 70% and 95% ethyl alcohol to determine fixative effects on total length (TI,). Total length reduced over the first 24h for all species (P<0.0001) but then stabilized. Longnose dace and green sunfish TL reduction was less for 5% formalin than for either 70% or 95% ethanol (both P<0.0001), whereas the fixative solution had no effect on red shiner TL (P=0.347). A greater percentage of change in TL was observed in green sunfish and red shiner than in longnose dace, suggesting that body form (compressiform vs. fusiform) may affect shrinkage rate among adult stream fishes.}, number={3}, journal={Journal of Freshwater Ecology}, publisher={Informa UK Limited}, author={Brinkley, Phillip D. and Fischer, Jesse R. and Paukert, Craig P.}, year={2008}, month={Sep}, pages={471–473} }