PUBLICATIONS


Coulter, D.P., G.J. Bowen, and T.O. Höök. in press. Influence of diet and ambient water on hydrogen and oxygen stable isotope ratios in fish tissue: patterns within and among tissues and relationships with growth rates. Hydrobiologia.

Almeida, L.Z., S.C. Guffey, M.S. Sepulveda, and T.O. Höök. in press. Behavioral and physiological responses of yellow perch (Perca flavescens) to moderate hypoxia. Comparative Biochemistry and Physiology.

Collingsworth, P.D., D.B. Bunnell, M.W. Murray, Y.-C. Kao, Z.S. Feiner, R.M. Claramunt, B.M. Lofgren, T.O. Höök, and S.A. Ludsin. in press. Climate change as a long-term stressor for the fisheries of the Laurentian Great Lakes of North America. Reviews in Fish Biology and Fisheries.

Stein, S.R., S.A. Pothoven, C.R. Roswell. and T.O. Höök. in press. Diets and growth of age-0 walleye in a recently recovered population. Journal of Great Lakes Research.

Pothoven, S.A., T.O. Höök, C.P. Madenjian. in press. Feeding ecology of the walleye (Percidae, Sander vitreus), a resurgent piscivore in Lake Huron (Laurentian Great Lakes) after shifts in the prey community. Ecology of Freshwater Fish.

Feiner, Z.S., J.A. DeWoody, J.E. Breck and T.O. Höök. in press. Influences of multilocus heterozygosity on size during early life. Ecology and Evolution.

Feiner, Z.S., S.C. Chong, D.G. Fielder, J.A. Hoyle, C. Knight, T.E. Lauer, M.V. Thomas, J.T. Tyson, and T.O. Höök. in press. Sex-based tradeoffs between growth, mortality, and maturation in Great Lakes yellow perch stocks. Canadian Journal of Fisheries and Aquatic Sciences.

Foley, C.J, S.R. Andree, C.R. Roswell, S.A. Pothoven, T.F. Nalepa, and T.O. Höök. 2017. Quantifying the predatory effect of round goby on Saginaw Bay dreissenids. Journal of Great Lakes Research. 43: 121-131.

Hrycik, A.R., L.Z. Almeida, and T.O. Höök. 2017. Sub-lethal effects on fish provide insight into a biologically-relevant threshold of hypoxia. Oikos. 126: 307-317.

Foley, C.J, M.L. Henebry, H.A. Bootsma, S.J. Czesny, Sergiusz, J. Janssen, D.J. Jude, J. Rinchard, and T.O. Höök. 2017. Spatial, seasonal and ontogenetic patterns of integration of an invasive fish into a nearshore freshwater food web. Food Webs. 10:26-38.

Zischke, M.T., D.B. Bunnell, C.D. Troy, E.K. Berglund, D.C. Caroffino, M.P. Ebener, S.P. Sitar, and T.O. Höök. 2017. Asynchrony in the inter-annual recruitment of lake whitefish Coregonus clupeaformis in the Great Lakes region. Journal of Great Lakes Research. 43: 359-369.

Bunnell, D.B., T.O. Höök., C.D. Troy, W. Liu, C.P. Madenjian and J.V. Adams. 2017. Testing for synchrony in recruitment among four Lake Michigan fish species. Canadian Journal of Fisheries and Aquatic Sciences. 74: 306-315.

Almeida, L.Z., S.C. Guffey, T.A. Krieg, and T.O. Höök. 2017. Predators reject Yellow Perch egg skeins. Transactions of the American Fisheries Society. 146:173-180.

Feiner, Z.S., D.P. Coulter, T.A. Krieg, S.B. Donabauer, and T.O. Höök. 2016. Environmental influences on fish assemblage variation among ecologically similar glacial lakes. Environmental Biology of Fishes.99:829-843

Simpson, N., A. Honsey, E.S. Rutherford, and T.O. Höök. 2016. Spatial shifts in salmonine harvest, harvest rate, and effort by charter boat anglers in Lake Michigan, 1992-2012. Journal of Great Lakes Research. 42: 1109-1117.

Lauber, T.B. and 11 co-authors. 2016. Using scenario development to predict invasive species impacts in the Laurentian Great Lakes. North American Journal of Fisheries Management. 36:1292-1307.

Honsey, A., D.B. Bunnell, C.D. Troy, D.G. Fielder, M.V. Thomas, C.T. Knight, S.C. Chong and T.O. Höök. 2016. Recruitment synchrony of yellow perch in the Great Lakes Region. Fisheries Research. 181: 214-221.

Feiner, Z.S., H.-Y. Wang, D.W. Einhouse, J.R. Jackson, E.S. Rutherford, C. Schelb, C.S. Vandergoot, T.G. Zorn, and T.O. Höök. 2016. Population and maternal influences on egg size and maternal effects in a freshwater fish. Ecosphere. 7(5)

Swihart, R.K., M. Sundaram, T.O. Höök, J.A. DeWoody, and K.F. Kellner. 2016. Performance benchmarks for scholarly metrics associated with fisheries and wildlife faculty. PLoS ONE. 11(5)

DeVanna-Fussell, K.M. and 19 co-authors. 2016. A perspective on needed research, modeling, and management approaches that can enhance Great Lakes fisheries management under changing ecosystem conditions. Journal of Great Lakes Research.42:743-752.

Watson, S.B., and 16 co-authors. 2016. Harmful algal blooms and the re-eutrophication of Lake Erie: Past, present and future management scenarios. Harmful Algae. 56:44-66.

Coulter, D.P., M.S. Sepulveda, C. Troy and T.O. Höök. 2016. Species-specific effects of sub-daily temperature fluctuations on consumption, growth, and stress responses in two physiologically similar fish species. Ecology of Freshwater Fish.25:465-475.

Swihart, R.K., M. Sundaram, J.A. DeWoody, and T.O. Höök. 2016. Factors affecting scholarly performance by wildlife and fisheries faculty. Journal of Wildlife Management. 80: 563-572.

Feiner, Z.S., D.P. Coulter, S.C. Guffey, and T.O. Höök. 2016. Does overwinter temperature regulate egg quality and maternal condition in yellow perch? Journal of Fish Biology. 88: 1524-1543.

Honsey, A., S. Donabauer, and T.O. Höök. 2016. An analysis of lake morphometric and land use characteristics that promote persistence of Cisco Coregonus artedi in Indiana. Transactions of the American Fisheries Society. 154: 363-373.

Foley, C.J., Bradley, D., and Höök, T.O. 2016. A review and assessment of the potential use of RNA:DNA ratios to assess the condition of entrained fish larvae. Ecological Indicators. 60: 346-357.

Withers, J.L., T.M. Sesterhenn, C.J. Foley, C.D. Troy, and T.O. Höök. 2015. Diets and growth potential of early stage larval yellow perch and alewife in a nearshore region of southeastern Lake Michigan. Journal of Great Lakes Research. 41: S3 197-209.

Vanderploeg, H.A., Bunnell, D.B., Carrick, H.J., and T.O. Höök. 2015. Complex interactions in Lake Michigan's rapidly changing ecosystem. Journal of Great Lakes Research. 41: S3 1-6.

Sullivan, C., Coulter, D.P., Feiner, Z.S., Donabauer, S., and Höök, T.O. 2015. Influences of gear type and analytical methodology on fish assemblage characterisations in temperate lakes. Fisheries Ecology and Management. 22:388-399.

Happel, A. J. Lafountain, S. Creque, J. Rinchard, T. Höök, H. Bootsma, J. Janssen, D. Jude, and S. Czesny. 2015. Spatio-temporal description of spottail shiner (Notropis hudsonius) fatty acid profiles in Lake Michigan's southern basin. Journal of Great Lakes Research. 41: S3 179-184.

Ivan, L.N., and T.O. Höök. 2015. Energy allocation strategies of young temperate fish: An eco-genetic modeling approach. Canadian Journal of Fisheries and Aquatic Sciences. 72: 1243-1258.

Pothoven. S.A., and T.O. Höök. 2015. Feeding ecology of invasive age-0 white perch and native white bass after two decades of co-existence in Saginaw Bay, Lake Huron. Aquatic Invasions. 10: 347-357.

Happel, A., Creque, S., Rinchard, J., Höök, T., Bootsma, H., Janssen, J., Jude, D and Czesny, S. 2015. Exploring yellow perch diets in Lake Michigan through stomach content, fatty acids and stable isotope ratios. Journal of Great Lakes Research. 41: S3 172-178.

Feiner, Z.S., S.C. Chong, C.T. Knight, T.E. Lauer, M.V. Thomas, J.T. Tyson, and T.O. Höök. 2015. Rapidly shifting maturation schedules following reduced commercial harvest in a freshwater fish. Evolutionary Applications. 8: 724-737.

Feiner, Z.S. and Höök, T.O. 2015. Environmental Biology of Percids. in Biology and Culture of Percid Fishes - Principles and Practices. Kestemont, P., Dabrowski, K., and Summerfelt, R.C. (Eds.)

Coulter, D.P., T.O. Höök, C.T. Mahapatra, S.C. Guffey, and M.S. Sepulveda. 2015. Fluctuating water temperatures affect development, physiological responses and cause sex reversal in fathead minnows. Environmental Science & Technology. 49: 1921-1928.

Mulvaney, K.K., S. Lee, T.O. Höök, and L.S. Prokopy. 2015. Casting a Net to Better Understand Fisheries Management: An Affiliation Network Analysis of the Great Lakes Fishery Commission. Marine Policy. 57: 120-131

Feiner, Z.S., D.B. Bunnell, T.O. Höök, C.P. Madenjian, D.M. Warner, and P.D. Collingsworth. 2015. Non-stationary recruitment dynamics of rainbow smelt: The influence of environmental variables and variation in size structure and length-at-maturation. Journal of Great Lakes Research. 41: 246-258.

Andree, S.R., Z.S. Feiner, J.W. Bledsoe, A.M. Cragun, and T.O. Höök. 2015. Ontogenetic variability of maternal effects in an iteroparous fish. Ecology of Freshwater Fish. 24: 384-396.

Middaugh, C.R., M.S. Sepulveda, and T.O. Höök. 2014. Growth and behavioral effects of the lampricide TFM on non-target fish species. Journal of Great Lakes Research. 40: 1010-1015.

Ivan, L.N., D.G. Fielder, M.V. Thomas, and T.O. Höök. 2014. Changes in the Saginaw Bay, Lake Huron, fish community from 1970-2011. Journal of Great Lakes Research. 40: 922-933.

Foley, C.J., G.J. Bowen, T.F. Nalepa, M.S. Sepulveda and T.O. Höök. 2014. Stable isotope patterns of benthic organisms from the Great Lakes region indicate variable dietary overlap of Diporeiaspp. and dreissenid mussels. Canadian Journal of Fisheries and Aquatic Sciences. 71: 1784-1795.

Turschak, B.A., D.B. Bunnell, S. Czesny, T.O. Höök, J. Janssen, D. Warner, and H.A. Bootsma. 2014. Nearshore energy subsidies support Lake Michigan fishes and invertebrates following major changes in food web structure. Ecology. 95: 1243-1252.

Scavia, D and 28 co-authors. 2014. Assessing and addressing the re-eutrophication of Lake Erie: Central Basin hypoxia. Journal of Great Lakes Research. 40: 226-246.

Mulvaney, K.K., C.J. Foley, T.O. Höök, E.C. McNie, and L.S. Prokopy. 2014. Identifying useful climate change information needs of Great Lakes fishery managers. Journal of Great Lakes Research. 40: 590-598.

Coulter, D. and M.S. Sepulveda, C. Troy, T.O. Höök. 2014. Thermal habitat quality of aquatic organisms near power plant discharges: potential exacerbating effects of climate warming. Fisheries Ecology and Management. 21: 196-210.

Roswell, C.R., S.A. Pothoven, and T.O. Höök. 2014. Patterns of age-0 yellow perch growth, diets, and mortality in Saginaw Bay, Lake Huron. Journal of Great Lakes Research. 40: 123-132

Staton, J.M., C.R. Roswell, D.G. Fielder, M.V. Thomas, S.A. Pothoven and T.O. Höök. 2014. Condition and diet of yellow perch in Saginaw Bay, Lake Huron (1970-2011). Journal of Great Lakes Research. 40: 139-147.

Pothoven, S.A., T.O. Höök, and C.R. Roswell. 2014. Energy content of young yellow perch and walleye in Saginaw Bay. Journal of Great Lakes Research. 40: 133-138.

Pothoven, S.A., C.R. Roswell and T.O. Höök. 2014. Feeding ecology of age-0 lake whitefish in Saginaw Bay, Lake Huron. Journal of Great Lakes Research. 40: 148-155.

Sesterhenn, T.M., C.R. Roswell, S.R. Stein, P. Klaver, E. Verhamme, S.A. Pothoven and T.O. Höök.2014. Implications of multiple hatching sites for larval dynamics in the resurgent Saginaw Bay walleye population. Journal of Great Lakes Research. 40: 113-122.

Pothoven, S.A. and T.O. Höök. 2014. Predatory demands of Bythotrephes and Leptodora in Saginaw Bay, Lake Huron. Journal of Great Lakes Research. 40: 106-112.

Middaugh, C.R., C.J. Foley, and T.O. Höök. 2013. Local, nearshore and lake-scale habitat effects on abundance, size structure and diets of juvenile largemouth bass and bluegill in temperate lakes. Transactions of the American Fisheries Society. 142:1576-1589.

Hewson, I., J.B. Eaglesham, T.O. Höök, B.A. LaBarre, M.S. Sepulveda, P.D. Thompson, J.M. Watkins, and L.G. Rudstam. 2013. Investigation of viruses in Diporeia spp. from the Laurentian Great Lakes and Owasco Lake as potential stressors of declining populations. Journal of Great Lakes Research. 39: 499-506.

Roswell, C.R., S.A. Pothoven and T.O. Höök. 2013. Spatio-temporal, ontogenetic, and inter-individual variation of age-0 diets in a population of yellow perch. Ecology of Freshwater Fish. 22: 479-493.

Pothoven, S.A., T.O. Höök, T.F. Nalepa, M. Thomas, and J.D. Bressie. 2013. Changes in zooplankton community structure associated with the disappearance of invasive alewife in Saginaw Bay, Lake Huron. Aquatic Ecology. 47:1-12.

Maity, S., A. Jannasch, J. Adamec, J.M. Watkins, T.F. Nalepa, T.O. Höök, and M.S. Sepulveda. 2013. Elucidating causes of Diporeia decline in the Great Lakes via metabolomics: Physiological responses after exposure to different stressors. Physiological and Biochemical Zoology. 86: 213-223

Blouzdis, C.E., L.N. Ivan, S.A. Pothoven, C.R. Roswell, C.J. Foley, and T.O. Höök. 2013. A trophic bottleneck? The ecological role of trout-perch Percopsis omiscomaycus in Saginaw Bay, Lake Huron. Journal of Applied Ichthyology. 29: 416-424.

Ryan, D., M.S. Sepulveda, T. Nalepa, L.N. Ivan, and T.O. Höök. 2013. A Comparison of Consumptive Demand of Diporeia and Dreissenids in Lake Michigan based on bioenergetics models. in Zebra and quagga mussels in North America.

Pothoven, S.A., H.A. Vanderploeg, T.O. Höök, and S. A. Ludsin. 2012. Hypoxia modifies planktivore-zooplankton interactions in Lake Erie. Canadian Journal of Fisheries and Aquatic Sciences. 69: 2018-2028

Roberts, J.J., P.A. Grecay, S.A. Ludsin, S.A. Pothoven, H.A. Vanderploeg, and T.O. Höök. 2012. Evidence of hypoxic foraging forays by yellow perch (Perca flavescens) and potential consequences for prey consumption. Freshwater Biology. 57: 922-937.

Wang, H.Y., D.W. Einhouse D.G. Fielder, L.G. Rudstam, C. Vandergoot, A.J.VanDeValk, T. Zorn, and T.O. Höök. 2012. Maternal and stock effects on egg-size variation among walleye Sander vitreus stocks from the Great Lakes region. Journal of Great Lakes Research. 38: 477-489.

Goto, D., K. Lindelof, D.L. Fanslow, S.A. Ludsin, S.A. Pothoven, J.J. Roberts, H.A. Vanderploeg, A.E. Wilson, and T.O. Höök. 2012. Indirect consequences of hypolimentic hypoxia on freshwater zooplankton growth in a large eutrophic lake. Aquatic Biology. 16: 217-227.

Ryan, D.J., M. S. Sepulveda, T. Nalepa, and T.O. Höök. 2012. Spatial variation in RNA:DNA ratios ofDiporeia spp. in the Great Lakes region. Journal of Great Lakes Research. 38:187-195.

Maity, S., A. Jannash, J. Adamec, T. Nalepa, T. Höök, and M. S. Sepulveda. 2012. Starvation causes disturbance in amino acid and fatty acid metabolism in Diporeia. Comparative Biochemistry and Physiology Part B. 161: 348-355.

Maity, S., A. Jannash, J. Adamec, M. Gribskov, T. Nalepa, T.O. Höök, and M. S. Sepulveda. 2012. Metabolite profiles in starved Diporeia spp. using liquid chromatography-mass spectrometry (LC-MS) based metabolomics. Journal of Crustacean Biology. 32 (2), 239-248

Jacobs, G.R., J.E. Breck, and T.O. Höök. 2012. Growth-mediated seasonal energy allocation patterns of young-of-year largemouth bass (Micropterus salmoides). Journal of Crustacean Biology. 27: 63-76.

Roberts, JJ., S.B. Brandt, D. Fanslow, S.A. Ludsin, S.A. Pothoven, D. Scavia, and T.O. Höök. 2011. Effects of hypoxia on consumption, growth, and RNA:DNA ratios of young yellow perch. Transactions of the American Fisheries Society. 40: 1574-1586.

Ivan, L.N., M. Thomas, D. Fielder, and T.O. Höök. 2011. Long-term and interannual dynamics of walleye (Sander vitreus) and yellow perch (Perca flavescens) in Saginaw Bay, Lake Huron.Transactions of the American Fisheries Society. 140: 1078-1092.

Arend, K.A., D. Beletsky, J.V. DePinto, S.A. Ludsin, J.J. Roberts, D.K. Rucinski, D. Scavia, D.J. Schwab, and T.O Höök. 2011. Seasonal and interannual effects of hypoxia on fish habitat quality in central Lake Erie. Freshwater Biology. 56: 366-383.

Foley, C.F., D.J. Ryan, and T.O Höök. 2010. Length reduction of larval yellow perch and freshwater amphipods in RNAlater solution. North American Journal of Fisheries Management. 30: 1143-1148

Wang, H.Y., and T.O. Höök. 2009. Eco-genetic model to explore fishing-induced ecological and evolutionary effects on growth and maturation schedules. Evolutionary Applications. 2: 438-455.

Wang, H.Y., T.O. Höök, H.A. Cook, D.W. Einhouse, D.G. Fielder, K.A. Kayle, and L.G. Rudstam. 2009. Inter-stock variation of maturation schedules of walleye in the Great Lakes region. North American Journal of Fisheries Management. 29: 1540-1554.

Höök, T.O., and S.A. Pothoven. 2009. Energy dynamics of young alewives in eastern Lake Michigan and Muskegon Lake, a connected drowned river mouth lake. North American Journal of Fisheries Management. 29:378-387.

Roberts, J.J. T.O. Höök, S.A. Ludsin, S.A. Pothoven, H.A. Vanderploeg, and S.B. Brandt. 2009. Effects of hypolimnetic hypoxia on foraging and distributions of Lake Erie yellow perch. Journal of Experimental Marine Biology and Ecology. 381: S132-S142.

Vanderploeg, H.A., S.A. Ludsin, S.A. Ruberg, T.O. Höök, S.A. Pothoven, S. B. Brandt, G.A. Lang, J.R. Liebig, and J.F. Cavaletto. 2009. Hypoxia affects spatial distribution of pelagic fish, zooplankton, and phytoplankton in Lake Erie. Journal of Experimental Marine Biology and Ecology. 381: S92-S107.

Vanderploeg, H.A., S.A. Ludsin, J.F. Cavaletto, T.O. Höök, S.A. Pothoven, S. B. Brandt, J.R. Liebig, and G.A. Lang. 2009. Hypoxic zones as habitat for zooplankton in Lake Erie: refuges from predation or exclusions zones? Journal of Experimental Marine Biology and Ecology. 381: S108-S120.

Pothoven, S.A., H.A. Vanderploeg, S.A. Ludsin, T.O. Höök, and S.B. Brandt. 2009. Feeding ecology of rainbow smelt and emerald shiner in Lake Erie's central basin. Journal of Great Lakes Research. 35: 190-198.

Dufour, E., T.O. Höök, W. Patterson, and E.S. Rutherford. 2008. High-resolution isotope analysis of age-0 alewife Alosa pseudoharengus otoliths: assessment of temporal resolution and reconstruction of habitat occupancy and thermal history. Journal of Fish Biology. 73:2434-2451.

Wang, H.Y., T.O. Höök, M.P. Ebener, L.C. Mohr, and P.J. Schneeberger. 2008. Spatial and temporal variation of maturation schedules of lake whitefish (Coregonus clupeaformis) in the Great Lakes. Canadian Journal of Fisheries and Aquatic Sciences. 65: 2157-2169.

Pothoven, S.A., S.A. Ludsin, T.O. Höök, D.L. Fanslow, D.M. Mason, P. Collingsworth, and J.J. VanTassell. 2008. An evaluation of bioelectrical impedance analysis for estimating fish energy, lipid, and water content. Transactions of the American Fisheries Society.137:1519-1529.

Wilson, A.E., D.C. Gossiaux, T.O. Höök, J.P. Berry, P.F. Landrum, J. Dyble, and S.J. Guildford. 2008. Evaluation of the human health threat associated with the hepatotoxin, microcystin, in the muscle and liver tissues of yellow perch (Perca flavescens). Canadian Journal of Fisheries and Aquatic Sciences. 65: 1487-1497.

Höök, T.O., E.S. Rutherford, T.E. Croley, D.M. Mason, and C.P. Madenjian. 2008. Annual variation in habitat-specific recruitment success: Implications from an individual-based model of Lake Michigan alewife (Alosa pseudoharengus). Canadian Journal of Fisheries and Aquatic Sciences. 65: 1402-1412.

Höök, T.O., E. Gorokhova, and S. Hansson. 2008. RNA:DNA ratios of Baltic herring larvae and copepods in embayment and open sea habitats. Estuarine, Coastal, and Shelf Science. 76: 29-35.

Höök, T.O., E.S. Rutherford, D.M. Mason, and G. S. Carter. 2007. Hatch dates, growth rates, survival and over-winter mortality of age-0 alewives in Lake Michigan: Implications for habitat-specific recruitment success. Transactions of the American Fisheries Society. 136: 1298-1312.

Höök, T.O., M.J. McCormick, E.S. Rutherford, D. Mason, and G. S. Carter. 2006. Short-term water mass movements in Lake Michigan: implications for larval fish transport. Journal of Great Lakes Research. 32: 728-737.

Dufour, E., W. Patterson, T.O. Höök, and E.S. Rutherford. 2005. Early life history of Lake Michigan alewives (Alosa pseudoharengus) inferred from intra-otolith stable isotope ratios. Canadian Journal of Fisheries and Aquatic Sciences. 62: 2362-2370.

Madenjian, C. P., T.O. Höök, E.S. Rutherford, D.M. Mason, T.E. Croley II, E.B. Szalai, and J.R. Bence. 2005. Recruitment variability of alewives in Lake Michigan. Transactions of the American Fisheries Society. 134: 218-230.

Höök, T.O., E.S. Rutherford, C. Geddes, S.J. Brines, D.M. Mason, D.J. Schwab, and G.W. Fleischer. 2004. Landscape scale measures of steelhead (Oncorhynchus mykiss) bioenergetic growth rate potential in Lake Michigan and comparison with angler catch rates. Journal of Great Lakes Research. 30: 545-556.

Höök, T.O., E.S. Rutherford, S.J. Brines, D.J. Schwab, and M.J. McCormick. 2004. Relationships between surface water temperature and steelhead distributions in Lake Michigan. North American Journal of Fisheries Management. 24: 211-221.

Höök, T.O., E.S. Rutherford, S.J. Brines, D.M. Mason, D.J. Schwab, M.J. McCormick, G.W. Fleischer, and T.J. DeSorcie. 2003. Spatially explicit measures of production of young alewives in Lake Michigan: Linkage between essential fish habitat and recruitment. Estuaries. 26: 21-29.

Vandermeer, J., M.A. Evans, P. Foster, T. Höök, M. Reiskind, and M.Wund. 2002. Increased competition may promote species coexistence. Proceedings of the National Academy of Sciences 99: 8731-8736.

Höök, T.O., N.M. Eagan, and P.W. Webb. 2001. Habitat and human influences on larval fish assemblages in northern Lake Huron coastal marsh bays. Wetlands 21: 281-291.





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