@article{henson_aday_rice_layman_2018, title={Assessing the Influence of Tilapia on Sport Fish Species in North Carolina Reservoirs}, volume={147}, ISSN={["1548-8659"]}, DOI={10.1002/tafs.10031}, abstractNote={Abstract}, number={2}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Henson, Mary Nell and Aday, D. Derek and Rice, James A. and Layman, Craig A.}, year={2018}, month={Mar}, pages={350–362} }
 @article{bradley_rice_aday_hightower_rock_lincoln_2018, title={Juvenile and Adult Striped Bass Mortality and Distribution in an Unrecovered Coastal Population}, volume={38}, ISSN={["1548-8675"]}, DOI={10.1002/nafm.10036}, abstractNote={Abstract}, number={1}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Bradley, Caitlin E. and Rice, James A. and Aday, D. Derek and Hightower, Joseph E. and Rock, Jason and Lincoln, Kelsey L.}, year={2018}, month={Feb}, pages={104–119} }
 @article{bradley_rice_aday_2018, title={Modeling the Effects of Vital Rate Manipulation and Management Scenarios to Predict the Population Impact of Restoration Programs on an Unrecovered Coastal Population of Striped Bass}, volume={38}, ISSN={["1548-8675"]}, DOI={10.1002/nafm.10062}, abstractNote={Abstract}, number={3}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Bradley, Caitlin E. and Rice, James A. and Aday, D. Derek}, year={2018}, month={Jun}, pages={639–649} }
 @article{grieshaber_penland_kwak_cope_heise_law_shea_aday_rice_kullman_et al._2018, title={Relation of contaminants to fish intersex in riverine sport fishes}, volume={643}, ISSN={0048-9697}, url={http://dx.doi.org/10.1016/J.SCITOTENV.2018.06.071}, DOI={10.1016/j.scitotenv.2018.06.071}, abstractNote={Endocrine active compounds (EACs) are pollutants that have been recognized as an emerging and widespread threat to aquatic ecosystems globally. Intersex, the presence of female germ cells within a predominantly male gonad, is considered a biomarker of endocrine disruption caused by EACs. We measured a suite of EACs and assessed their associated impacts on fish intersex occurrence and severity in a large, regulated river system in North Carolina and South Carolina, USA. Our specific objective was to determine the relationship of contaminants in water, sediment, and fish tissue with the occurrence and severity of the intersex condition in wild, adult black bass (Micropterus), sunfish (Lepomis), and catfish (Ictaluridae) species at 11 sites located on the Yadkin-Pee Dee River. Polycyclic aromatic hydrocarbons (PAHs), ethinylestradiol (EE2), and heavy metals were the most prevalent contaminants that exceeded effect levels for the protection of aquatic organisms. Fish intersex condition was most frequently observed and most severe in black basses and was less frequently detected and less severe in sunfishes and catfishes. The occurrence of the intersex condition in fish showed site-related effects, rather than increasing longitudinal trends from upstream to downstream. Mean black bass and catfish tissue contaminant concentrations were higher than that of sunfish, likely because of the latter's lower trophic position in the food web. Principal component analysis identified waterborne PAHs as the most correlated environmental contaminant with intersex occurrence and severity in black bass and sunfish. As indicated by the intersex condition, EACs have adverse but often variable effects on the health of wild sport fishes in this river, likely due to fluctuations in EAC inputs and the dynamic nature of the riverine system. These findings enhance the understanding of the relationship between contaminants and fish health and provide information to guide ecologically comprehensive conservation and management decisions.}, journal={Science of The Total Environment}, publisher={Elsevier BV}, author={Grieshaber, C.A. and Penland, T.N. and Kwak, T.J. and Cope, W.G. and Heise, R.J. and Law, J.M. and Shea, Damian and Aday, D.D. and Rice, J.A. and Kullman, S.W. and et al.}, year={2018}, month={Dec}, pages={73–89} }
 @article{aday_daugherty_murie_2018, title={Renewing the Vision for AFS Journals}, volume={43}, ISSN={["1548-8446"]}, DOI={10.1002/fsh.10163}, abstractNote={FisheriesVolume 43, Issue 10 p. 460-462 Column: AFS News Renewing the Vision for AFS Journals D. Derek Aday, D. Derek Aday ddaday@ncsu.edu Department of Applied Ecology, North Carolina State University, 127 David Clark Laboratory, Raleigh, NC, 27695 Search for more papers by this authorDaniel J. Daugherty, Daniel J. Daugherty Texas Parks and Wildlife Department, Heart of the Hills Fisheries Science Center, Mountain Home, TXSearch for more papers by this authorDebra J. Murie, Debra J. Murie School of Forest Resources and Conservation, Fisheries and Aquatic Sciences Program, University of Florida, Gainesville, FLSearch for more papers by this author D. Derek Aday, D. Derek Aday ddaday@ncsu.edu Department of Applied Ecology, North Carolina State University, 127 David Clark Laboratory, Raleigh, NC, 27695 Search for more papers by this authorDaniel J. Daugherty, Daniel J. Daugherty Texas Parks and Wildlife Department, Heart of the Hills Fisheries Science Center, Mountain Home, TXSearch for more papers by this authorDebra J. Murie, Debra J. Murie School of Forest Resources and Conservation, Fisheries and Aquatic Sciences Program, University of Florida, Gainesville, FLSearch for more papers by this author First published: 04 September 2018 https://doi.org/10.1002/fsh.10163Read 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 onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume43, Issue10October 2018Pages 460-462 RelatedInformation}, number={10}, journal={FISHERIES}, author={Aday, D. Derek and Daugherty, Daniel J. and Murie, Debra J.}, year={2018}, month={Oct}, pages={460–462} }
 @article{henson_aday_rice_2018, title={Thermal Tolerance and Survival of Nile Tilapia and Blue Tilapia under Rapid and Natural Temperature Declination Rates}, volume={147}, ISSN={["1548-8659"]}, DOI={10.1002/tafs.10023}, abstractNote={Abstract}, number={2}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Henson, Mary Nell and Aday, D. Derek and Rice, James A.}, year={2018}, month={Mar}, pages={278–286} }
 @article{lee pow_law_kwak_cope_rice_kullman_aday_2017, title={Endocrine active contaminants in aquatic systems and intersex in common sport fishes}, volume={36}, ISSN={0730-7268}, url={http://dx.doi.org/10.1002/ETC.3607}, DOI={10.1002/ETC.3607}, abstractNote={Abstract}, number={4}, journal={Environmental Toxicology and Chemistry}, publisher={Wiley}, author={Lee Pow, Crystal S.D. and Law, J. Mac and Kwak, Thomas J. and Cope, W. Gregory and Rice, James A. and Kullman, Seth W. and Aday, D. Derek}, year={2017}, month={Apr}, pages={959–968} }
 @article{owensby_rice_aday_2017, title={Mortality, Dispersal, and Habitat Use of Stocked Juvenile Muskellunge in Two Western North Carolina Rivers}, volume={37}, ISSN={["1548-8675"]}, DOI={10.1080/02755947.2016.1245222}, abstractNote={Abstract}, number={1}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Owensby, Dylan P. and Rice, James A. and Aday, D. Derek}, year={2017}, pages={108–121} }
 @article{lee pow_tilahun_creech_law_cope_kwak_rice_aday_kullman_2017, title={Windows of Susceptibility and Consequences of Early Life Exposures to 17β–estradiol on Medaka (Oryzias latipes) Reproductive Success}, volume={51}, ISSN={0013-936X 1520-5851}, url={http://dx.doi.org/10.1021/ACS.EST.7B01568}, DOI={10.1021/acs.est.7b01568}, abstractNote={Estrogens and estrogen mimics are commonly found in surface waters and are associated with deleterious effects in fish populations. Impaired fertility and fecundity in fish following chronic exposures to estrogens and estrogen mimics during critical windows in development are well documented. However, information regarding differential reproductive effects of exposure within defined developmental stages remains sparse. In this study, reproductive capacity was assessed in Japanese medaka (Oryzias latipes) after exposure to two concentrations of 17β-estradiol (E2β; 2 ng/L and 50 ng/L) during four distinct stages of development: gonad development, gonad differentiation, development of secondary sex characteristics (SSC) and gametogenesis. Exposure to E2β did not adversely impact survival, hatch success, growth, or genotypic ratios. In contrast, exposure to 50 ng/L E2β during SSC development altered phenotypic ratios and SSC. Exposure to both E2β treatments reduced reproductive capacity (fertility, fecundity) by 7.3-57.4% in adult medaka breeding pairs, with hindrance of SSC development resulting in the largest disruption in breeding capacity (51.6-57.4% decrease) in the high concentration. This study documents differential effects among four critical stages of development and provides insight into factors (window of exposure, exposure concentration and duration of exposure period) contributing to reproductive disruption in fish.}, number={9}, journal={Environmental Science & Technology}, publisher={American Chemical Society (ACS)}, author={Lee Pow, Crystal S.D. and Tilahun, Kedamawit and Creech, Kari and Law, J. Mac and Cope, W. Gregory and Kwak, Thomas J. and Rice, James A. and Aday, D. Derek and Kullman, Seth W.}, year={2017}, month={Apr}, pages={5296–5305} }
 @article{lincoln_aday_rice_2016, title={Seasonal Mortality and Movement Patterns of White Bass in a Southeastern US Reservoir}, volume={145}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2016.1195444}, abstractNote={Abstract}, number={5}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Lincoln, Kelsey J. and Aday, D. Derek and Rice, James A.}, year={2016}, pages={1035–1046} }
 @article{pow_yost_aday_kullman_2016, title={Sharing the Roles: An Assessment of Japanese Medaka Estrogen Receptors in Vitellogenin Induction}, volume={50}, ISSN={["1520-5851"]}, DOI={10.1021/acs.est.6b01968}, abstractNote={Teleost fish express at least three estrogen receptor (ER) subtypes. To date, however, the individual role of these ER subtypes in regulating expression of estrogen responsive genes remains ambiguous. Here, we investigate putative roles of three ER subtypes in Japanese medaka (Oryzias latipes), using vitellogenin (VTG) I and II as model genes. We identify specific ligand/receptor/promoter dynamics, using transient transactivation assays that incorporate luciferase reporters comprising 3kb promoter/enhancer regions of medaka VTGI and VTGII genes. Four steroidal estrogens (17β-estradiol, estrone, estriol, and 17α-estradiol) were tested in these assays. Results indicate that all three medaka ERs (mERs) are capable of initiating transactivation of both VTG I and II, with ERβ2 exhibiting greatest activity. Promoter deletion analysis suggests that ligand-specific receptor transactivation and utilization of regional-specific estrogen response elements may be associated with differential activities of each medaka ER. Further, cluster analysis of in vivo gene expression and in vitro transactivation suggests that all three ER subtypes putatively play a role in up-regulation of VTG. Results illustrate that preferential ligand/receptor/promoter interactions may have direct implications for VTG gene expression and other ER-mediated regulatory functions that are relevant to the risk assessment of estrogenic compounds.}, number={16}, journal={ENVIRONMENTAL SCIENCE & TECHNOLOGY}, author={Pow, Crystal S. D. Lee and Yost, Erin E. and Aday, D. Derek and Kullman, Seth W.}, year={2016}, month={Aug}, pages={8886–8895} }
 @article{brown_rice_suski_aday_2015, title={Dispersal Patterns of Coastal Largemouth Bass in Response to Tournament Displacement}, volume={35}, ISSN={["1548-8675"]}, DOI={10.1080/02755947.2015.1009660}, abstractNote={Abstract}, number={3}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Brown, Daniel T. and Rice, James A. and Suski, Cory D. and Aday, D. Derek}, year={2015}, pages={431–439} }
 @article{brown_aday_rice_2015, title={Responses of Coastal Largemouth Bass to Episodic Hypoxia}, volume={144}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2015.1024801}, abstractNote={Abstract}, number={4}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Brown, Daniel T. and Aday, D. Derek and Rice, James A.}, year={2015}, pages={655–666} }
 @article{sackett_pow_rubino_aday_cope_kullman_rice_kwak_law_2015, title={Sources of endocrine-disrupting compounds in North Carolina waterways: A geographic information systems approach}, volume={34}, ISSN={0730-7268}, url={http://dx.doi.org/10.1002/ETC.2797}, DOI={10.1002/etc.2797}, abstractNote={Abstract}, number={2}, journal={Environmental Toxicology and Chemistry}, publisher={Wiley}, author={Sackett, Dana K. and Pow, Crystal Lee and Rubino, Matthew J. and Aday, D. Derek and Cope, W. Gregory and Kullman, Seth and Rice, James A. and Kwak, Thomas J. and Law, Mac}, year={2015}, month={Jan}, pages={437–445} }
 @article{bethke_rice_aday_2014, title={White Perch in Small North Carolina Reservoirs: What Explains Variation in Population Structure?}, volume={143}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2013.830989}, abstractNote={Abstract}, number={1}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Bethke, Bethany J. and Rice, James A. and Aday, D. Derek}, year={2014}, month={Jan}, pages={77–84} }
 @article{sackett_aday_rice_cope_2013, title={Maternally transferred mercury in wild largemouth bass, Micropterus salmoides}, volume={178}, ISSN={0269-7491}, url={http://dx.doi.org/10.1016/J.ENVPOL.2013.03.046}, DOI={10.1016/j.envpol.2013.03.046}, abstractNote={Maternal transfer of mercury in fish represents a potential route of elimination for adult females and a risk to developing embryos. To better quantify maternal transfer, we measured Hg in female largemouth bass (Micropterus salmoides) muscle and eggs from six waterbodies. Mercury in eggs from two waterbodies exceeded a US federal screening level (0.3 μg g−1) and was likely high enough to cause adverse reproductive effects. We found a curvilinear relationship between female and egg Hg. Fish with <0.37 μg g−1 Hg had low levels of Hg in eggs; those with Hg >0.37 μg g−1 showed a direct relationship between egg and muscle Hg (Log10 egg Hg = −1.03 + 1.18 * log10 muscle tissue Hg + 2.15 * (log10 muscle tissue Hg + 0.35)2). We also report higher maternal transfer (0.2–13.2%) and higher ratios of egg to muscle tissue Hg (4–52%) and egg to whole body Hg concentrations (7–116%) than previously observed for teleost fish.}, journal={Environmental Pollution}, publisher={Elsevier BV}, author={Sackett, Dana K. and Aday, D. Derek and Rice, James A. and Cope, W. Gregory}, year={2013}, month={Jul}, pages={493–497} }
 @article{sackett_cope_rice_aday_2013, title={The Influence of Fish Length on Tissue Mercury Dynamics: Implications for Natural Resource Management and Human Health Risk}, volume={10}, ISSN={["1660-4601"]}, DOI={10.3390/ijerph10020638}, abstractNote={Consumption of fish has well-known human health benefits, though some fish may contain elevated levels of mercury (Hg) that are especially harmful to developing children. Fish length is most often the basis for establishing fishery harvest regulations that determine which fish will ultimately be consumed by humans. It is, therefore, essential to quantify the relationship between fish length and Hg accumulation in regard to harvest regulations for effective fishery and public health policy. We examined this relationship for three sportfish from six lakes across North Carolina, USA. Bluegill (Lepomis macrochirus) had the lowest Hg levels and only the very largest fish in the most contaminated site exceeded the US Environmental Protection Agency (USEPA) Hg screening level. Black crappie (Pomoxis nigromaculatus) had an intermediate level of Hg and larger individuals exceeded the USEPA screening level; however, they tended not to exceed this level before reaching the harvest length limit. Largemouth bass (Micropterus salmoides) exceeded the USEPA screening level at sizes below the fishery length limit in two lakes, leaving only higher risk fish for anglers to harvest and consume. Removing the effects of fish age and trophic position, we found strong positive correlations between Hg and fish length for largemouth bass and black crappie. We suggest public health officials and wildlife managers collaborate to structure fishery regulations and length-based fish consumption advisories that protect consumers from Hg exposure and communicate the relative risk of fish consumption.}, number={2}, journal={INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH}, author={Sackett, Dana K. and Cope, W. Gregory and Rice, James A. and Aday, D. Derek}, year={2013}, month={Feb}, pages={638–659} }
 @article{feiner_rice_bunch_aday_2013, title={Trophic Niche and Diet Overlap between Invasive White Perch and Resident White Bass in a Southeastern Reservoir}, volume={142}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2013.788563}, abstractNote={Abstract}, number={4}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Feiner, Zachary S. and Rice, James A. and Bunch, Aaron J. and Aday, D. Derek}, year={2013}, month={Jul}, pages={912–919} }
 @article{feiner_rice_aday_2013, title={Trophic Niche of Invasive White Perch and Potential Interactions with Representative Reservoir Species}, volume={142}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2013.763854}, abstractNote={Abstract}, number={3}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Feiner, Zachary S. and Rice, James A. and Aday, D. Derek}, year={2013}, month={May}, pages={628–641} }
 @article{sackett_aday_rice_cope_2013, title={Validation of a Predictive Model for Fish Tissue Mercury Concentrations}, volume={142}, ISSN={["0002-8487"]}, DOI={10.1080/00028487.2012.747990}, abstractNote={Abstract}, number={2}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Sackett, Dana K. and Aday, D. Derek and Rice, James A. and Cope, W. Gregory}, year={2013}, month={Mar}, pages={380–387} }
 @article{petre_sackett_aday_2012, title={Do national advisories serve local consumers: an assessment of mercury in economically important North Carolina fish}, volume={14}, ISSN={["1464-0325"]}, DOI={10.1039/c2em30024a}, abstractNote={Consumption of marine fish provides both benefits (lean protein, omega-3 fatty acids and essential nutrients) and risks (main source of mercury (Hg) exposure for humans). Mercury is a potent neurotoxin and the source of more fish advisories nationwide than any other toxicant. Despite the widespread nature of Hg, it is unknown whether local Hg contamination reflects national and regional levels often used as bases to inform consumers of potential fish consumption risk. Thus, the objectives of our study were to examine Hg levels of six commonly consumed marine species harvested locally off the North Carolina coast and to compare our results to published regional (Monterey Bay Aquarium's Seafood Watch List) and national (Environmental Protection Agency, EPA, and Food and Drug Administration, FDA) Hg averages, action levels, and guidelines. We found significant differences in Hg concentrations among collected species, and we identified correlations between Hg concentration and fish length and trophic levels. Collected mahi mahi and triggerfish were below the EPA fish tissue action level (0.3ppm). Wahoo and grouper exceeded the EPA action level but were below the FDA action level (1.0ppm). King mackerel had the highest Hg concentration among targeted species, exceeding both EPA and FDA action levels. Further, our local results were not always consistent with calculated averages from EPA and FDA databases for the same species, and although many of our findings were consistent with Monterey Bay Aquarium's Seafood Watch List (southeast region), recommendations based on Hg levels would conflict with recommendations they provide based on sustainability. We find regional and national averages are not always reflective of local Hg contamination and suggest local data may be needed to accurately assess consumer risk.}, number={5}, journal={JOURNAL OF ENVIRONMENTAL MONITORING}, author={Petre, Sally Jane and Sackett, Dana K. and Aday, D. Derek}, year={2012}, month={May}, pages={1410–1416} }
 @article{may_aday_hale_denlinger_marschall_2012, title={Modeling Habitat Selection of a Top Predator: Considering Growth and Physical Environments in a Spatial Context}, volume={141}, ISSN={["1548-8659"]}, DOI={10.1080/00028487.2012.655122}, abstractNote={Abstract}, number={1}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={May, Cassandra J. and Aday, D. Derek and Hale, R. Scott and Denlinger, Jonathan C. S. and Marschall, Elizabeth A.}, year={2012}, month={Jan}, pages={215–223} }
 @article{feiner_aday_rice_2012, title={Phenotypic shifts in white perch life history strategy across stages of invasion}, volume={14}, ISSN={["1573-1464"]}, DOI={10.1007/s10530-012-0231-z}, number={11}, journal={BIOLOGICAL INVASIONS}, author={Feiner, Zachary S. and Aday, D. Derek and Rice, James A.}, year={2012}, month={Nov}, pages={2315–2329} }
 @article{donaldson_aday_cooke_2011, title={A Call for Mini-Reviews: An Effective but Underutilized Method of Synthesizing Knowledge to Inform and Direct Fisheries Management, Policy, and Research}, volume={36}, ISSN={["0363-2415"]}, DOI={10.1080/03632415.2011.10389084}, abstractNote={Abstract}, number={3}, journal={FISHERIES}, author={Donaldson, M. R. and Aday, D. D. and Cooke, S. J.}, year={2011}, month={Mar}, pages={123–129} }
 @article{money_sackett_aday_serre_2011, title={Using River Distance and Existing Hydrography Data Can Improve the Geostatistical Estimation of Fish Tissue Mercury at Unsampled Locations}, volume={45}, ISSN={["1520-5851"]}, DOI={10.1021/es2003827}, abstractNote={Mercury in fish tissue is a major human health concern. Consumption of mercury-contaminated fish poses risks to the general population, including potentially serious developmental defects and neurological damage in young children. Therefore, it is important to accurately identify areas that have the potential for high levels of bioaccumulated mercury. However, due to time and resource constraints, it is difficult to adequately assess fish tissue mercury on a basin wide scale. We hypothesized that, given the nature of fish movement along streams, an analytical approach that takes into account distance traveled along these streams would improve the estimation accuracy for fish tissue mercury in unsampled streams. Therefore, we used a river-based Bayesian Maximum Entropy framework (river-BME) for modern space/time geostatistics to estimate fish tissue mercury at unsampled locations in the Cape Fear and Lumber Basins in eastern North Carolina. We also compared the space/time geostatistical estimation using river-BME to the more traditional Euclidean-based BME approach, with and without the inclusion of a secondary variable. Results showed that this river-based approach reduced the estimation error of fish tissue mercury by more than 13% and that the median estimate of fish tissue mercury exceeded the EPA action level of 0.3 ppm in more than 90% of river miles for the study domain.}, number={18}, journal={ENVIRONMENTAL SCIENCE & TECHNOLOGY}, publisher={American Chemical Society (ACS)}, author={Money, Eric S. and Sackett, Dana K. and Aday, D. Derek and Serre, Marc L.}, year={2011}, month={Sep}, pages={7746–7753} }
 @article{midway_aday_kwak_gross_2010, title={Cover Preference of the Carolina Madtom (Noturus furiosus), an Imperiled, Endemic Southeastern Stream Fish}, volume={25}, ISSN={0270-5060 2156-6941}, url={http://dx.doi.org/10.1080/02705060.2010.9664368}, DOI={10.1080/02705060.2010.9664368}, abstractNote={ABSTRACT In a laboratory setting, we investigated cover preference of the Carolina madtom (Noturus furiosus), an imperiled, endemic southeastern USA stream fish. Fish were tested individually and given 24 hours to make a selection from four cover options, including rock, leaf pack, mussel shell, and an artificial cover unit. Among 30 trials, Carolina madtom preferred the artificial cover unit, selecting it 63% of the time. Rock was selected 23% of the time, and leaf pack 13%. Mussel shells were not selected during any trial.}, number={1}, journal={Journal of Freshwater Ecology}, publisher={Informa UK Limited}, author={Midway, S. R. and Aday, D. D. and Kwak, T. J. and Gross, K.}, year={2010}, month={Mar}, pages={151–154} }
 @article{sackett_aday_rice_cope_buchwalter_2010, title={Does proximity to coal-fired power plants influence fish tissue mercury?}, volume={19}, ISSN={["1573-3017"]}, DOI={10.1007/s10646-010-0545-5}, abstractNote={Much of the mercury contamination in aquatic biota originates from coal-fired power plants, point sources that release mercury into the atmosphere. Understanding mercury dynamics is primarily important because of the toxic threat mercury poses to wildlife and humans through the consumption of contaminated fish. In this study, we quantified the relative importance of proximity to coal-fired power plants on mercury accumulation in two fish species of different trophic positions. Fish, water and sediment were collected and analyzed from 14 lakes, seven near to (<10 km) and seven far from (>30 km) coal-fired power plants. Lower tissue mercury and higher tissue selenium concentrations were measured in fish collected near power plants. Moreover, mercury accumulation in fish was driven by biotic characteristics (e.g., trophic position, total length, age), waterbody characteristics (e.g., pH, dissolved organic carbon and sulfate) and distance from power plants. Proximity to an atmospheric point-source of mercury and selenium, such as a coal-fired power plant, affects the quantities of mercury and selenium accumulated in fish tissue. Differences in accumulation are hypothesized to be driven in part by selenium-mitigated reductions in fish tissue mercury near power plants. Although reduced fish tissue mercury in systems near power plants may decrease mercury-specific risks to human consumers, these benefits are highly localized and the relatively high selenium associated with these tissues may compromise ecological health.}, number={8}, journal={ECOTOXICOLOGY}, author={Sackett, Dana K. and Aday, D. Derek and Rice, James A. and Cope, W. Gregory and Buchwalter, David}, year={2010}, month={Nov}, pages={1601–1611} }
 @article{sackett_aday_rice_cope_2009, title={A Statewide Assessment of Mercury Dynamics in North Carolina Water Bodies and Fish}, volume={138}, ISSN={["0002-8487"]}, DOI={10.1577/t08-178.1}, abstractNote={Abstract}, number={6}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Sackett, Dana K. and Aday, D. Derek and Rice, James A. and Cope, W. Gregory}, year={2009}, month={Nov}, pages={1328–1341} }
 @article{godbout_aday_rice_bangs_quattro_2009, title={Morphological Models for Identifying Largemouth Bass, Spotted Bass, and Largemouth Bass X Spotted Bass Hybrids}, volume={29}, ISSN={["1548-8675"]}, DOI={10.1577/M08-253.1}, abstractNote={Abstract}, number={5}, journal={NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT}, author={Godbout, Jason D. and Aday, D. Derek and Rice, James A. and Bangs, Max R. and Quattro, Joseph M.}, year={2009}, month={Oct}, pages={1425–1437} }
 @article{aday_2007, title={The presence of an invasive macrophyte (Phragmites australis) does not influence juvenile fish habitat use in a freshwater estuary}, volume={22}, ISSN={["0270-5060"]}, DOI={10.1080/02705060.2007.9664185}, abstractNote={ABSTRACT I evaluated the short-term influence of the presence of the invasive macrophyte Phragmites australis on fish use in Old Woman Creek, a freshwater estuary connected intermittently to Lake Erie in northcentral Ohio. With minnow traps, trap nets, and light traps I sampled juvenile fish in two areas of the estuary, one dominated by P. australis and the other dominated by a native macrophyte, narrow-leaved cattail (Typha angustifolia). The number of fish species present and the total number of individuals were similar in each habitat, indicating that habitat use by fish was not influenced by the presence of P. australis.}, number={3}, journal={JOURNAL OF FRESHWATER ECOLOGY}, author={Aday, Derek}, year={2007}, month={Sep}, pages={535–537} }
 @article{aday_philipp_wahl_2006, title={Sex-specific life history patterns in bluegill (Lepomis macrochirus): interacting mechanisms influence individual body size}, volume={147}, ISSN={["1432-1939"]}, DOI={10.1007/s00442-005-0242-x}, abstractNote={The ultimate body size that an individual fish achieves can be a function both of direct effects of growth or indirect effects associated with the timing of sexual maturation (and associated energetic tradeoffs). These alternatives are often invoked to explain variation in body size within and among fish populations, but have rarely been considered simultaneously. We assessed how resource availability and timing of maturation interact to influence individual body size of bluegill (Lepomis macrochirus). Resource availability (high and low food) and the social structure of the population (presence or absence of large, mature males) were varied in experimental ponds. Food ration affected growth (larger fish in the high food treatments) and the social structure of the population affected timing of maturation (early maturation of males in the absence of large males). Treatment effects, however, were sex-specific; males responded to the social structure of the population and females were more responsive to resource availability. We also found individuals that became sexually mature were smaller than those that remained immature, although results were sex-specific and resource dependent. For males, individuals that matured were smaller when resources were limited; mature and immature females showed no difference in body size regardless of food ration. We show that both resource availability and the processes that control timing of maturation interact in sex-specific ways to influence body size of bluegill. These results suggest that a more robust explanation for variable body size requires consideration of sex-specific interactions between ecological (food and growth) and evolutionary (timing of maturation) mechanisms.}, number={1}, journal={OECOLOGIA}, author={Aday, DD and Philipp, DP and Wahl, DH}, year={2006}, month={Feb}, pages={31–38} }
 @article{aday_shoup_neviackas_kline_wahl_2005, title={Prey community responses to bluegill and gizzard shad foraging: Implications for growth of juvenile largemouth bass}, volume={134}, ISSN={["1548-8659"]}, DOI={10.1577/T04-073.1}, abstractNote={Abstract}, number={5}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Aday, DD and Shoup, DE and Neviackas, JA and Kline, JL and Wahl, DH}, year={2005}, month={Sep}, pages={1091–1102} }
 @article{berra_aday_2004, title={Otolith description and age-and-growth of nursuryfish, Kurtus gulliveri, from Northern Australia}, volume={65}, DOI={10.1111/j.1095-8649.2004.00454.x}, journal={Journal of Fish Biology}, author={Berra, T. M. and Aday, D. D.}, year={2004}, pages={354–362} }
 @article{aday_wahl_philipp_2003, title={A mechanism for social inhibition of sexual maturation in bluegill}, volume={62}, ISSN={["1095-8649"]}, DOI={10.1046/j.1095-8649.2003.00033.x}, abstractNote={Social control of maturation is a common phenomenon in fishes, yet associated mechanisms are often unidentified. An examination of interactions between mature and juvenile male bluegill Lepomis macrochirus in mesocosms, isolating visual, chemical and physical interactions, suggested that chemical cues are responsible for inhibiting maturation of juvenile males.}, number={2}, journal={JOURNAL OF FISH BIOLOGY}, author={Aday, DD and Wahl, DH and Philipp, DP}, year={2003}, month={Feb}, pages={486–490} }
 @article{aday_wahl_philipp_2003, title={Assessing population-specific and environmental influences on bluegill life-histories: a common garden approach}, volume={84}, DOI={10.1890/02-3139}, abstractNote={Investigations into vertebrate life histories have demonstrated trade-offs between growth and reproduction that can result in individual and population-specific variation in life-history strategies. Mechanisms to explain variation among populations, however, often remain unidentified. We examined the relative strength of genetic (population source) and environmental (population social structure) factors on variation in growth and timing of maturation for juvenile male bluegill in a common garden experiment. We placed juvenile male bluegill collected from two different wild source populations, one with parental males that are large (>190 mm total length) and one with parental males that are stunted (<155 mm total length), in a common environment and varied the social structure by controlling the presence or absence of large, mature, male bluegill collected from a third population. Juvenile male bluegill from both populations allocated significantly more energy to reproduction in the absence of large males than in their presence. Within ponds, differences in growth and maturation rates between juvenile males from the two source populations were small but significant. These results indicate both genetic and environmental components to growth and maturation in bluegill but emphasize the importance of social interactions in shaping individual life-history strategies.}, journal={Ecology (Brooklyn, New York, N.Y.)}, author={Aday, D. D. and Wahl, D. H. and Philipp, D. P.}, year={2003}, pages={3370–3375} }
 @article{aday_hoxmeier_wahl_2003, title={Direct and indirect effects of gizzard shad on bluegill growth and population size structure}, volume={132}, ISSN={["0002-8487"]}, DOI={10.1577/1548-8659(2003)132<0047:DAIEOG>2.0.CO;2}, abstractNote={Abstract Competition with gizzard shad Dorosoma cepedianum has been shown to influence survival of larval bluegills Lepomis macrochirus as well as growth and size structure of largemouth bass Micropterus salmoides, which prey on these planktivorous species. However, little is known about how the presence of gizzard shad influences bluegills beyond the larval stage. We examined bluegill–gizzard shad interactions across 10 reservoirs with and 10 without gizzard shad to determine direct and indirect effects of gizzard shad on bluegill population size structure. In the presence of gizzard shad, bluegills exhibited smaller adult (>3 years old) size structure. Benthic invertebrate densities were higher in non-gizzard shad reservoirs, which may have contributed to increased bluegill growth in these systems. In contrast, zooplankton densities were similar in reservoirs with and without gizzard shad. Turbidity was higher in reservoirs with gizzard shad, which may have reduced foraging success and growth of bluegil...}, number={1}, journal={TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY}, author={Aday, DD and Hoxmeier, RJH and Wahl, DH}, year={2003}, month={Jan}, pages={47–56} }
 @article{aday_kush_wahl_philipp_2002, title={The influence of stunted body size on the reproductive ecology of bluegill Lepomis macrochirus}, volume={11}, ISSN={["1600-0633"]}, DOI={10.1034/j.1600-0633.2002.00011.x}, abstractNote={Abstract – Although stunting is a common phenomenon in fish populations, the consequences of stunted body size on the reproductive ecology of individuals has received little attention. The present study compares the reproductive ecology of bluegill in established stunted and non‐stunted populations. Three ponds (two non‐stunted and one stunted) were monitored for spawning activity throughout the summer. Parental male bluegill from both non‐stunted populations were older, larger, and had greater mating success (number of eggs or fry within nests) than parental males in the stunted population. Stunted bluegill also experienced a shortened reproductive season owing to the delay in onset of spawning. The present study demonstrates that individual size and population size structure can have a marked influence on the reproductive ecology of bluegill.}, number={3}, journal={ECOLOGY OF FRESHWATER FISH}, author={Aday, DD and Kush, CM and Wahl, DH and Philipp, DP}, year={2002}, month={Sep}, pages={190–195} }
 @article{aday_rutherford_kelso_2000, title={Field and laboratory determinations of hypoxic effects on RNA-DNA ratios of bluegill}, volume={143}, ISSN={["0003-0031"]}, DOI={10.1674/0003-0031(2000)143[0433:FALDOH]2.0.CO;2}, abstractNote={Abstract We used RNA-DNA ratios in both field and laboratory experiments to examine the effects of hypoxia on short-term growth of bluegill Lepomis macrochirus collected from the lower Atchafalaya River Basin, Louisiana. In the field experiment, RNA-DNA ratios of bluegill (17.8–52.3 g) from hypoxic habitats (DO < 2.0 mg L−1; n = 26) were significantly lower than ratios of bluegill from normoxic habitats (DO > 4.0 mg L−1; n = 31). In each of two laboratory experiments 40 bluegill (14.54–76.70 g) were individually placed in aquaria to test the effects of hypoxia on RNA-DNA ratios. Additionally, bluegill were fed at different rates in the first experiment to determine the effects of feeding level on RNA-DNA ratios. Results of the first experiment confirmed the sensitivity of RNA-DNA ratios to short-term changes in growth, as fed bluegill had significantly higher ratios than starved bluegill. In both experiments RNA-DNA ratios were not significantly different in bluegill subjected to hypoxia. Results of the study indicate that laboratory experiments did not adequately simulate increased bioenergetic demands and fluctuating DO levels found in hypoxic areas of the Basin.}, number={2}, journal={AMERICAN MIDLAND NATURALIST}, author={Aday, DD and Rutherford, DA and Kelso, WE}, year={2000}, month={Apr}, pages={433–442} }