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Evolutionary Ecology Software





Bassar, R.D., B.H. Letcher, K.H. Nislow, and A.R. Whiteley. 2016. Changes in seasonal climate outpace compensatory density-dependence in eastern brook trout. Global Change Biology 22:577-593. doi: 10.1111/gcb.13135

Kanno, Y., K.C. Pregler, N.P. Hitt, B.H. Letcher, D.J. Hocking, and J.E.B. Wofford. 2016. Seasonal temperature and precipitation regulate brook trout young-of-the-year abundance and population dynamics. Freshwater Biology 61, 88–99. doi: 10.1111/fwb.12682

Kovach, R.P., C.C. Muhlfeld, R. Al-Chokhachy, J.B. Dunham, B.H. Letcher, and J.L. Kershner. 2016. Impacts of climatic variation on trout: a global synthesis
and path forward.
Rev Fish Biol Fisheries. doi: 10.1007/s11160-015-9414-x

Letcher, B.H., Hocking, D.J., O’Neil, K., Whiteley, A.R., Nislow, K.H., and M.J. O’Donnell. 2016. A hierarchical model of daily stream temperature using air-water temperature synchronization, autocorrelation, and time lags.PeerJ 4:e1727.



Jane, S.F., T.M. Wilcox, K.S. McKelvey, M.K. Young, K. Schwartz, W.H. Lowe, B.H. Letcher, and A.R. Whiteley. 2015. Distance, flow and PCR inhibition: eDNA dynamics in two headwater streams. Molecular Ecology Resources 15:216-227. doi: 10.1111/1755-0998.12285.12216

Letcher, BH., P. Schueller, R. Bassar, K.H. Nislow, J.A. Coombs, K. Sakrejda, M. Morrissey, D. Sigourney, A.R. Whiteley, M. O'Donnell, and T. Dubreuil. 2015. Robust estimates of environmental effects on population vital rates: an integrated capture-recapture model of seasonal brook trout growth, survival and movement in a stream network. Journal of Animal Ecology 84:337-352. doi:10.1111/1365-2656.12308

Kanno, Y., B.H. Letcher, N.P. Hitt, D.A. Boughton, J.E.B. Wofford, and E.F. Zipkin. 2015. Seasonal weather patterns drive population vital ratesand persistence in a stream fish. Global Change Biology 21:1856-1870. doi: 10.1111/gcb.12837

Kanno, Y., B.H. Letcher, A.L. Rosner, K.P. O’Neil, and K.H. Nislow. 2015. Environmental Factors Affecting Brook Trout Occurrence in Headwater Stream Segments. Transactions of the American Fisheries Society 144:373-382. doi: 10.1080/00028487.2014.991446

Snook, E.L., B.H. Letcher, T.L. Dubreuil, J. Zydlewski, M.J. O'Donnell, A.R. Whiteley, S.T. Hurley, and A.J. Danylchuk. 2015. Movement patterns of brook trout in a restored coastal stream system in southern Massachusetts. Ecology of Freshwater Fish. doi: 10.1111/eff.12216

Whiteley, A.R., J.A. Coombs, M. Cembrola, M.J. O'Donnell, M. Hudy, K.H. Nislow, and B.H. Letcher. 2015. Effective number of breeders provides a link between interannual variation in stream flow and individual reproductive contribution in a stream salmonid. Molecular Ecology 24: 3585-3602. doi: 10.1111/mec.13273



Kanno, Y., B.H. Letcher, J.A. Coombs, K.H. Nislow, and A.R. Whiteley. 2014. Linking movement and reproductive history of brook trout to assess habitat connectivity in a heterogeneous stream network. Freshwater Biology 59(1): 142-154. doi: 10.1111/fwb.12254

Kanno, Y, J.C. Vokoun, and B. H. Letcher, 2014. Paired stream-air temperature measurements reveal fine-scale thermal heterogeneity within headwater brook trout stream networks. River Research and Applications 30(6):745-755. doi:10.1002/rra.2677

Kazyak, D., B.H. Letcher, J. Zydlewski, and M.J. O’Donnell. 2014. Growth variability of Brook Charr(Salvelinus fontinalis) in coastal Maine. Ecology of Freshwater Fish 23(4)516-526. doi:10.1111/eff.12105

Otero, J., et al., 2014. Basin-scale phenology and effects of climate variability on global timing of initial seaward migration of Atlantic salmon (Salmo salar). Global Change Biology 20:61-75. doi:10.1111/gcb.12363

Rudershausen, P.J., J.A. Buckel, T. Dubreuil, M.J. O'Donnell, J.E. Hightower, S.J. Poland, and B.H. Letcher. 2014. Estimating movement and survival rates of a small saltwater fish using autonomous antenna receiver arrays and passive integrated transponder tags. Marine Ecology Progress Series 499:177-192. doi:10.3354/meps10656

Zipkin,E., J. Thorson, K. See, H. Lynch, E. Grant, Y. Kanno, R. Chandler, B.H. Letcher, and J. Royle. 2014. Modeling structured population dynamics using data from unmarked individuals. Ecology. doi:10.1890/13-1131.1



Sigourney, D.B., B.H. Letcher, M. Obedzinsk, and R.A. Cunjak. 2013. Interactive effects of life history and season on size-dependent growth in juvenile Atlantic salmon. Ecology of Freshwater Fish 22(4):495-507. doi:10.1111/eff.12042

Whiteley, A.R., J.A. Coombs, M. Hudy, Z. Robinson, A.R. Colton, K.H. Nislow, and B.H. Letcher. 2013. Fragmentation and patch size shape genetic structure of brook trout populations. Canadian Journal of Fisheries and Aquatic Sciences 7(5):678-688. doi:10.1139/cjfas-2012-0493



Bunt, C.M., T. Castro-Santos, and A. Haro. 2012. Performance of fish passage structures at upstream barriers to migration. River Research and Applications 28:457-478.

Castro-Santos, T. Adaptive fishway design: a framework and rationale for effective evaluations.  Monitoring, Funktionskontrollen und Qualitätssicherung an Fischaufstiegsanlagen. 2. Kolloquium zur Herstellung der ökologischen Durchgängigkeit der Bundeswasserstraßen.  76-89. 2012. Koblenz, Germany, Bundesanstalt für Gewässerkunde.

Castro-Santos,T. and Perry,R.W. 2012. Time-to-event analysis as a framework for quantifying fish passage performance. In Telemetry Techniques. Edited by N.S.Adams, J.W.Beeman, and J.Eiler. American Fisheries Society, Bethesda, MD. pp. 427-452.

Christensen, A.K., Hiroi,J., Schultz, E.T. and McCormick, S.D. 2012 Branchial ionocyte organization and ion-transport protein expression in juvenile alewives acclimated to freshwater or seawater. Journal of Experimental Biology 215:642-652.

Coombs, J.A., B.H. Letcher, and K.H. Nislow. 2012. GONe: Software for estimating effective population size in species with generational overlap. Molecular Ecology Resources 12(1):160-163. doi:10.1111/j.1755-0998.2011.03057.x

Fontes,H.M.Jr., Castro-Santos,T., Makrakis,S., Gomes,L.C., and Latini,J.D. 2012. A barrier to upstream migration in the fish passage of Itaipu Dam (Canal da Piracema), Paraná River basin. Neotropical Ichthyology 10: 697-704.

Franklin,A.E., Haro,A., Castro-Santos,T., and Noreika,J. 2012. Evaluation of nature-like and technical fishways for the passage of alewife (Alosa pseudoharengus) at two coastal streams in New England. Trans.Am.Fish.Soc. 141: 624-637.

Hanson, A., Kittilson, J., McCormick, S.D., & Sheridan, MN. 2012. Effects of 17ß-estradiol, 4-nonylphenol, and ß-sitosterol on the growth hormone-insulin-like growth factor system and seawater adaptation of rainbow trout (Oncorhynchus mykiss). Aquaculture. 363:241–247.

Haro,A.J. and Castro-Santos,T. 2012. Passage of American Shad: Paradigms and Realities. Marine and Coastal Fisheries 4: 252-261.

Haro, A.J., Dudley, R.W., & Chelminski, M. 2012. Development of computational fluid dynamics—habitat suitability (CFD–HSI) models to identify potential passage—Challenge zones for migratory fishes in the Penobscot River. U.S. Geological Survey Fact Sheet 2012-3073, 2 p.

Iwanowicz, L.R., Blazer, V.S., Hitt, N.P., McCormick, S.D., DeVault, D.S., Ottinger, C.A. 2012. Histologic, immunologic and endocrine biomarkers indicate contaminant effects in fishes of the Ashtabula River. Ecotoxicology 21: 165-182

Kanno, Y., J.C. Vokoun, K.E. Holsinger and B.H. Letcher. 2012. Estimating size-specific brook trout abundance in continuously sampled headwater streams using Bayesian mixed models with zero inflation and overdispersion. Ecology of Freshwater Fish 21(3):404-419. doi:10.1111/j.1600-0633.2012.00560.x

Lerner, D.T., Sheridan, M.A. & McCormick, S.D. 2012. Estrogenic compounds decrease growth hormone receptor abundance and alter osmoregulation in Altantic salmon. General and Comparative Endocrinology. 179(2):196–204.

Makrakis,S., Castro-Santos,T., Makrakis,M.C., Wagner,R.L., and Spagnol-Adames,M. 2012. Culverts in paved roads as suitable passages for Neotropical fish species. Neotropical Ichthyology 10: 763-770.

McCormick, S.D., Lernrer, D.T., Regish, A.M., O’Dea, M.F. & Monette, M.Y. 2012. Thresholds for short-term acid and aluminum impacts on Atlantic salmon smolts. Aquaculture. 363:224–231

McLaughlin,R.L., Smyth,E.R.B., Castro-Santos,T., Jones,M.L., Koops,M.A., Pratt,T.C., and Vélez-Espino,L.A. 2012. Unintended Consequences and Trade-offs for Fish Passage. Fish and Fisheries In Press.

Nielson, R.J., Moffitt, C.M. & Watten, B.J. 2012. Hydrocyclonic separation of invasive New Zealand mudsnails from an aquaculture water source. Aquaculture. 326–329:156–162.

Perry,R.W., Castro-Santos,T., Holbrook,C.M., and Sandford,B.P. 2012. Using Mark-Recapture Models to Estimate Survival from Telemetry Data. In Telemetry Techniques: A User Guide for Fisheries Research. Edited by N.S.Adams, J.W.Beeman, and J.Eiler. American Fisheries Society, Bethesda, MD. pp. 453-476.

Robertson, L.S. McCormick, S.D.  2012. The effect of nonylphenol on gene expression in Atlantic salmon smolts.  Aquatic Toxicology (in press). Bureau Approval 5-14-12; FT-012831, IP-037923

Sigourney, D.B., S.B. Munch and B.H. Letcher. 2012. Combining a Bayesian nonparametric method with a hierarchical framework to estimate individual and temporal variation in growth. Ecological Modelling 247:125-134. doi: 10.1016/j.ecolmodel.2012.08.009

Steffanson, S., Hangland, M., Bjornsson, B.T.Th., McCormick, S.D., Holm, M., Ebbesson, L.O., Holst, J.C., & Nilsen, T.O. 2012. Growth, osmoregulation and endocrine changes in wild Atlantic salmon post-smolts during marine migration. Aquaculture. 363:127-136.

Steinschneider, S. A. Polebitski, C. Brown and B.H. Letcher. 2012. Toward a statistical framework to quantify the uncertainties of hydrologic response under climate change. Water Resources Research 48: doi:10.1029/2011WR011318

Wagner,R.L., Makrakis,S., Castro-Santos,T., Makrakis,M.C., Pinheiro-Dias,J.E., and Fuster-Belmont,R. 2012. Passage performance of long-distance upstream migrants at a large dam on the Paraná River and the compounding effects of entry and ascent. Neotropical Ichthyology 10: 785-795.

Whitely, A.R., J.A. Coombs, M. Hudy, Z. Robinson, K.H. Nislow, and B.H. Letcher. 2012. Sampling strategies for estimating brook trout effective population size. Conservation Genetics 13:625-637.



Bjornsson, B.T., S.O. Stefansson, and S.D. McCormick. 2011. Environmental endocrinology of salmon smoltification. General and Comparative Endocrinology 170(2):290-298.

Castro-Santos,T. 2011. Applied aspects of fish swimming performance. In Encyclopedia of fish physiology: from genome to the environment. Edited by A.P.Farrell. Academic Press, San Diego. pp. 1652-1663.

Close, D.A., S.S. Yun, and S.D. McCormick. 2011. Reply to Thornton and Carroll: Lamprey possess a highly specific corticosteroid signaling system. Proceedings of the National Academy of Sciences 108(2):E6.

Feng, G., P. Zhuang, L. Zhang, B. Kynard, X. Shi, M. Duan, J. Liu, X. Huang. 2011. Effect of anaesthetics MS-222 and clove oil on blood biochemical parameters of juvenile Siberian sturgeon (Acipenser baerii). Journal of Applied Ichthyology 27:595-599.

Hanson, A., J. Kittilson, S.D. McCormick, and M. Sheridan. 2011. Effects of 17ß-estradiol, 4-nonylphenol, and ß-sitosterol on the growth hormone-insulin-like growth factor system and seawater adaptation of rainbow trout (Oncorhynchus mykiss). Aquaculture

Horton, G.E., B.H. Letcher, and W.L. Kendall. 2011. A multistate capture-recapture modeling strategy to separate true survival from permanent emigration for a passive integrated transponder tagged population of stream fish. Transactions of the American Fisheries Society 140:320-333. doi:10.1080/00028487.2011.567861.

Kanno, Y., Vokoun, J.,and B.H. Letcher. 2011. Fine-scale population structure and riverscape genetics of brook trout (Salvelinus fontinalis) distributed continuously along headwater channel networks. Molecular Ecology 20(18):3711-3729. doi:10.1111/j.1365-294X.2011.05210.x.

Kanno, Y., Vokoun, J.,and B.H. Letcher. 2011. Sibship reconstruction for inferring mating systems, dispersal and effective population size in headwater brook trout (Salvelinus fontinalis) populations. Conservation Genetics 12(2):619-628. doi:10.1007/s10592-010-0166-9.

Kynard, B., D. Pugh, T. Parker, and M. Kieffer. 2011. Using a semi-natural stream to produce young sturgeons for conservation stocking: maintaining natural selection during spawning and rearing. Journal of Applied Ichthyology 27:420-424.

Letcher, B.H., Coombs, J.A., and K.H. Nislow. 2011. Maintenance of phenotypic variation: repeatability, heritability and size-dependent processes in a wild brook trout population. Evolutionary Applications 4(4):602-615. doi:10.1111/j.1752-4571.2011.00184.x

Liebich, T., S.D. McCormick, D. Kircheis, K. Johnson, R. Regal, and T. Hrabik. 2011. Water chemistry and its effects on the physiology and survival of Atlantic Salmon (Salmo salar) smolts. Journal of Fish Biology 79(2), 502-519.

McCormick, S.D. 2011. The Hormonal Control of Osmoregulation in Teleost Fish.  In: Farrell A.P., (ed.), Encyclopedia of Fish Physiology:  From Genome to Environment, Volume 2, pp. 1466-1473.  San Diego:  Academic Press.

McCormick, S.D., D.T. Lernrer, A.M. Regish, M.F. O’Dea, M.F., and M.Y. Monette. 2011. Thresholds for short-term acid and aluminum impacts on Atlantic salmon smolts. Aquaculture (in press).

Nislow, K,H., Hudy, M., Coombs, J.A., Letcher, B.H., and E.P. Smith. 2011. Variation in local abundance and species richness of stream fishes in relation to dispersal barriers: implications for management and conservation .Freshwater Ecology 56(10):2135-2144. doi:10.1111/j.1365-2427.2011.02634.x.

Steffanson, S., M. Hangland, B.T. Bjornsson, S.D. McCormick, M. Holm, L.O. Ebbesson, J.C. Holst, and T.O. Nilsen. 2011. Growth, osmoregulation and endocrine changes in wild Atlantic salmon smolts and post-smolts during marine migration. Aquaculture (in press).

Yada, T., S.D. McCormick, and S. Hyodo. 2011. Effects of environmental salinity, biopsy, and GH and IGF-I administration on the expression of immune and osmoregulatory genes in the gills of Atlantic salmon (Salmo salar). Aquaculture (in press).



Arzuaga, X., and A. Elskus. 2010. Polluted-site killifish (Fundulus heteroclitus) embryos are resistant to organic pollutant-mediated induction of CYP1A activity, reactive oxygen species, and heart deformities. Environmental Toxicology and Chemistry 29, 676-682.

Brammell, B.F., J.S. McClain, J.T. Oris, D.J. Price, W.J. Birge, and A.A. Elskus. 2010. CYP1A expression in caged rainbow trout discriminates among sites with various degrees of polychlorinated biphenyl contamination. Archives of Environmental Contamination and Toxicology 58, 772-782.

Brammell, B.F., D.J. Price, W.J. Birge, E.M. Harmel-Laws, J.A. Hitron, and A.A. Elskus. 2010. Differential sensitivity of CYP1A to 3,3',4',4-tetrachlorobiphenyl and benzo (a) pyrene in two Lepomis species. Comparative Biochemistry and Physiology, Part C 152, 42-50.

Castro-Santos, T. and A. Haro. 2010. Fish guidance and passage at barriers. In Fish Locomotion: an Eco-Ethological Perspective, P. Domenici and B.G. Kapoor, Eds. Science Publishers, Enfield, New Hampshire.

Castro-Santos, T. and B.H. Letcher. 2010. Modeling migratory energetics of American shad (Alosa sapidissima), implications for the conservation of an iteroparous anadromous fish. Canadian Journal of Fisheries and Aquatic Sciences 67, 806-830.  doi:10.1139/F10-026.

Close, D.A., S.S. Yun, S.D. McCormick, A.J. Wildbill, and L. Weiming. 2010. 11-Deoxycortisol is a corticosteroid hormone in the lamprey. Proceedings of the National Academy of Sciences 107 (31), 13942-13947.

Coombs, J.A., B.H. Letcher, and K.H. Nislow. 2010. PedAgree: Software to quantify error and assess accuracy and congruence for genetically reconstructed pedigree relationships. Conservation Genetics Resources 2, 147-150. doi: 10.1007/s12686-010-9202-9

Coombs, J.A., B.H. Letcher, and K.H. Nislow. 2010. PEDAGOG: Software for simulating eco-evolutionary, population dynamics. Molecular Ecology Resources 10 (3), 558-563. doi: 10.1111/j.1755-0998.2009.02803.x

Davidson, R.S., B.H. Letcher, and K.H. Nislow. 2010. Drivers of growth variation in juvenile Atlantic salmon (Salmo salar): an elasticity analysis approach. Journal of Animal Ecology 79:1113-1121. doi: 10.1111/j.1365-2656.2010.01708.x

Hudy, M., J. Coombs, K. Nislow, and B.H. Letcher. 2010. Dispersal and within-stream spatial population structure of brook trout revealed by pedigree reconstruction analysis. Transactions of the American Fisheries Society 139, 1276-1287. doi: 10.1577/T10-027.1.

Kynard, B., E. Parker, and B. Kynard. 2010. Ontogenetic behavior of Kootenai River White Sturgeon, Acipenser transmontanus, with a note on body color: A laboratory study. Environmental Biology of Fishes 88 (1), 65-77.

Monette, M.Y., T. Yada, V. Matey, and S.D. McCormick. 2010. Physiological, molecular, and cellular mechanisms of impaired seawater tolerance following exposure of Atlantic salmon, Salmo salar, smolts to acid and aluminum. Aquatic Toxicology 99, 17-32.

O'Donnell, M.J., G.E. Horton, and B.H. Letcher. 2010. Use of portable antennas to estimate population abundance of PIT tagged fish in small streams: factors affecting detection efficiency. North American Journal of Fisheries Management 30 (2), 323-336.

Xu, C., B.H. Letcher, and K.H. Nislow. 2010. Size-dependent survival of brook trout Salvelinus fontinalis in summer: effects of water temperature and stream flow. Journal of Fish Biology 76, 2342-2369. doi:10.1111/j.1095-8649.2010.02619.x

Xu, C., B.H. Letcher, and K.H. Nislow. 2010. Context-specific influence of water temperature on brook trout growth rates in the field. Freshwater Biology 55, 2253-2264.

Zimmerman, J.K.H., B.H. Letcher, K.H. Nislow, K.A. Lutz, and F.J. Magilligan. 2010. Determining the effects of dams on subdaily variation in river flows at a whole-basin scale. River Research and Applications 26, 1246-1260.



Aubin-Horth N., B.H. Letcher, and H.A. Hofmann. 2009. Gene-expression signatures of Atlantic salmon's plastic life cycle. General and Comparative Endocrinology 163 (3), 278-284.

Castro-Santos, T., A. Cotel, and P. Webb. 2009. Fishway evaluations for better bioengineering: An integrative approach. American Fisheries Society Symposium 69, 557-575.

Charney, N.D., B.H. Letcher, A. Haro, P.S. Warren. 2009. Terrestrial passive integrated transponder antennae for tracking small animal movements. Journal of Wildlife Management 73 (7), 1245-1250.

Davidsen, J.G., A.H. Rikardsen, E. Halttunen, E.B. Thorstad, F.Økland, B.H. Letcher, J. Skarðhamar and T.F. Næsje. 2009. Migratory behavior and survival rates of wild northern Atlantic salmon Salmo salar post-smolts: effects of environmental factors. Journal of Fish Biology 75, 1700-1718.

Denver, R.J., P.M Hopkins, S.D. McCormick, C.R. Propper, L. Riddiford, S.A. Sower, and J.C. Wingfield. 2009. Comparative endocrinology in the 21st century. Integrative and Comparative Biology 49, 339-348.

Frank, H.J., M.E. Mather, J.M. Smith, R.M. Muth, J.T. Finn, and S.D. McCormick. 2009. What is "fallback"?: metrics needed to assess telemetry tag effects on anadromous fish behavior. Hydrobiologia 635, 237-249.

Holliday, D.K., A.A. Elskus, and W.M. Roosenburg. 2009. Impacts of multiple stressors on growth and metabolic rate of Malaclemys terrapin. Environmental Toxicology and Chemistry 28, 338-345.

Horton, G E., B.H. Letcher, M.M. Bailey, M.T. Kinnison. 2009. Atlantic salmon (Salmo salar) smolt production: the relative importance of survival and body growth. Canadian Journal of Fisheries and Aquatic Sciences 66 (3), 471-483.

Husak, J.F., D.J. Irschick, S.D. McCormick, and I.T. Moore. 2009. Hormonal regulation of whole-animal performance: Implications for selection. Integrative and Comparative Biology 49, 349-353.

Iwanowicz, L.R., V.S. Blazer, S.D. McCormick, P.A. VanVeld, and C.A. Ottinger. 2009. Aroclor 1248 exposure leads to immunomodulation, decreased disease resistance and endocrine disruption in the brown bullhead, Ameiurus nebulosus. Aquatic Toxicology 93, 70-82.

McCormick, S.D. 2009. Evolution of the hormonal control of animal performance: Insights from the seaward migration of salmon. Integrative and Comparative Biology 49, 408-422.

McCormick, S.D., A. Keyes, K.H. Nislow, and M.Y. Monette. 2009. Impacts of episodic acidification on in-stream survival and physiological impairment of Altantic salmon (Salmo salar) smolts. Canadian Journal of Fisheries and Aquatic Sciences 66, 394-403.

McCormick, S.D., D.T. Lerner, M.Y. Monette, , K. Nieves-Puigdoller, J.T. Kelly, and B.T. Bjornsson. 2009. Taking it with you when you go: how perturbations to the freshwater environment, including temperature, dams and contaminants, affect marine survival of salmon. American Fisheries Society Symposium 69, 195-214.

McCormick, S.D., A.M. Regish, and A.K. Christensen. 2009. Distinct freshwater and seawater isoforms of Na+/K+-ATPase in gill chloride cells of Atlantic salmon. The Journal of Experimental Biology 212, 3994-4001.

Smith, J.M., M.E. Mather, H.J. Frank, R.M. Muth, J.T. Finn, and S.D. McCormick. 2009. Evaluation of a gastric radio tag insertion technique for anadromous river herring. North American Journal of Fisheries Management 29, 367-377.



Coombs, J.A., B.H. Letcher and K.H. Nislow. 2008. CREATE: a software to create input files from diploid genotypic data for 52 genetic software programs. Molecular Ecology Resources 8, 578-580.

Hiroi, J., S. Yasumasu, S.D. McCormick, P.P. Hwang, and T. Kaneko. 2008. Evidence for an apical Na-Cl cotransporter involved in ion uptake in a teleost fish. Journal of Experimental Biology 211, 2584-2599.

Horton, G.E., and B.H. Letcher. 2008. Movement patterns and study area boundaries: influences on survival estimation in capture–mark–recapture studies. Oikos 117 (8), 1131-1142.

Letcher, B.H., G.E. Horton. 2008. Seasonal variation in size-dependent survival of juvenile Atlantic salmon (Salmo salar): performance of multistate capture-mark-recapture models. Canadian Journal of Fisheries and Aquatic Sciences 65, 1649-1666.

McCormick, S.D., A. Regish, M.F. O'Dea, and J.M. Shrimpton. 2008. Are we missing a mineralocorticoid in teleost fish? Effects of cortisol, deoxycorticosterone and aldosterone on osmoregulation, gill Na+, K+-ATPase activity and isoform mRNA levels in Atlantic salmon. General and Comparative Endocrinology 157, 35-40.

Monette, M.Y., B.T. Bjornsson, and S.D. McCormick. 2008. Effects of short-term acid and aluminum exposure on the parr-smolt transformation in Atlantic salmon (Salmo salar): Disruption of seawater tolerance and endocrine status. General and Comparative Endocrinology 158, 122-130.

Monette, M.Y. and S.D. McCormick. 2008. Impacts of short-term acid and aluminum exposure on Atlantic salmon, (Salmo salar) physiology: a direct comparison of parr and smolts. Aquatic Toxicology 86, 216-226.

Nilsen, T.O., L.O.E. Ebbesson, P. Kiilerich, B.T. Bjornsson, S.S. Madsen, S.D. McCormick, and S.O. Stefansson. 2008. Seasonal variation in size-dependent survival of juvenile Atlantic salmon (Salmo salar): performance of multistate capture-mark-recapture models. Canadian Journal of Fisheries and Aquatic Sciences 65, 1649-1666.

O’Donnell, M.J. and B.H. Letcher. 2008. Size and age distributions of juvenile Connecticut River American shad above Hadley Falls: influence on outmigration representation and timing. River Research and Applications 24, 929-940.

Reis-Santos, P., S.D. McCormick, and J.M. Wilson. 2008. Ionoregulatory changes during metamorphosis and salinity exposure of juvenile sea lamprey (Petromyzon marinus L.). Journal of Experimental Biology 211, 978-988.

Sigourney, D.B., B.H. Letcher, M. Obedzinski, and R.A. Cunjak. 2008. Size-independent growth in fish: patterns, models and metrics. Journal of Fish Biology 72 (10), 2435-2455.

Stefansson, S.O., B.T. Bjornsson, L.O.E. Ebbesson, and S.D. McCormick. 2008. Smoltification. In Fish Larval Physiology, R.N. Finn and B.G. Kapoor, Eds. Science Publishers, Enfield, NH.



Carlson, S.M., A.P. Hendry, and B.H. Letcher. 2007. Growth rate differences between resident native brook trout and non-native brown trout. Journal of Fish Biology 71, 1430-1447.

Elskus, A.A. 2007. Pilot study of sublethal effects on fish of pesticides currently used and proposed for use on Maine blueberries. USGS Open File Report 2007-1110, 10pp.

Garcia de Leaniz, C., I.A. Fleming, S. Einum, E. Verspoor, W.C. Jordan, S. Consuegra, N. Aubin-Horth, D. Lajus, B.H. Letcher, A.F. Youngson, J.H. Webb, L.A. Vollestad, B. Villanueva, A. Ferguson, and T.P. Quinn. 2007. A critical review of adaptive genetic variation in Atlantic salmon: implications for conservation. Biological Reviews 82 (2), 173-211.

Hiroi, J. and S.D. McCormick. 2007. Variation in salinity tolerance, gill Na+/K+-ATPase, Na+/K+/2Cl¯ cotransporter and mitochondria-rich cell distribution in three salmonids Salvelinus namaycush, Salvelinus fontinalis and Salmo salar. Journal of Experimental Biology 210, 1015-1024.

Horton, G.E., T.L. Dubreuil, and B.H. Letcher. 2007. A model for estimating passive integrated transponder (PIT) tag antenna efficiencies for interval-specific emigration rates. Transactions of the American Fisheries Society 136, 1165-1176.

Lerner, D.T., B.T. Bjornsson, and S.D. McCormick. 2007. Aqueous exposure to 4-nonylphenol and 17β-estradiol increases stress sensitivity and disrupts ion regulatory ability of juvenile Atlantic salmon, Salmo salar. Environmental Toxicology and Chemistry 26, 1433-1440.

Lerner, D.T., B.T. Bjornsson, and S.D. McCormick. 2007. Effects of aqueous exposure to polychlorinated biphenyls (Aroclor 1254) on physiology and behavior of smolt development of Atlantic salmon. Aquatic Toxicology 81, 329-336.

Lerner, D.T., B.T. Bjornsson, and S.D. McCormick. 2007. Larval exposure to 4-nonylphenol and 17β-estradiol affects physiological and behavioral development of seawater adaptation in Atlantic salmon smolts. Environmental Science and Technology 41, 4479-4485.

Letcher B.H., K.H. Nislow, J.A. Coombs, M.J. O’Donnell, T.L. Dubreuil. 2007. Population response to habitat fragmentation in a stream-dwelling brook trout population. PLoS ONE 2 (11), e1139. doi:10.1371/journal.pone.0001139.

Mackie, P.M., K. Gharbi, J.S. Ballantyne, S.D. McCormick, and P.A. Wright. 2007. Na+/K+/2C1– cotransporter and CFTR gill expression after seawater transfer in smolts (0+) of different Atlantic salmon (Salmo salar) families. Aquaculture 272, 625-635.

Mancera, J.M. and S.D. McCormick. 2007. Role of prolactin, growth hormone, insulin-like growth factor I and cortisol in teleost osmoregulation. In Fish Osmoregulation, B. Baldisserotto, J.M. Mancera, and B.G. Kapoor, Eds. Science Publishers, Inc., New Delhi, India.

McCormick, S.D., J.M. Shrimpton, S. Moriyama, and B.T. Bjornsson. 2007. Differential hormonal responses of Atlantic salmon parr and smolt to increased daylength: a possible developmental basis for smolting. Aquaculture 273 (2-3), 337-344.

Nieves-Puigdoller, K., B.T. Bjornsson, and S.D. McCormick. 2007. Effects of hexazinone and atrazine on the physiology and endocrinology of smolt development in Atlantic salmon. Aquatic Toxicology 84, 27-37.

Nilsen, T.O., L.O.E. Ebbesson, S.S. Madsen, S.D. McCormick, E. Andersson, B.T. Bjornsson, P. Prunet, and S.O. Stefansson. 2007. Differential expression of gill Na+/K+-ATPase α- and ß-subunits, Na+/K+/2Cl- cotransporter and CFTR anion channel in juvenile anadromous and landlocked Atlantic salmon Salmo salar. Journal of Experimental Biology 210, 2885-2896.

Pearlstein, J.H., B.H. Letcher, and M. Obedzinski. 2007. Early discrimination of Atlantic salmon smolt age: Time course of the relative effectiveness of body size and shape. Transactions of the American Fisheries Society 136, 1622-1632.

Poppinga, J., J. Kittilson, S.D. McCormick, and M.A. Sheridan. 2007. Effects of somatostatin on the growth hormone-insulin-like growth factor axis and seawater adapation of rainbow trout (Oncorhynchus mykiss). Aquaculture 273, 312-319.

Scace, J.G., B.H. Letcher, and J. Noreika. 2007. An efficient smolt trap for sandy and debris-laden streams. North American Journal of Fisheries Management 27, 1276-1286.

Stefansson, S.O., T.O. Nilsen, L.O.E. Ebbesson, A. Wargelius, S.S. Madsen, B.T. Bjornsson, and S.D. McCormick. 2007. Molecular mechanisms of continuous light inhibition of Atlantic salmon parr - smolt transformation. Aquaculture 273, 235-245.



Arzuaga, X., D. Wassenberg, R. Di Giulio, and A. Elskus. 2006. The chlorinated AHR ligand 3,3',4,4',5-pentachlorobiphenyl (PCB126) promotes reactive oxygen species (ROS) production during embryonic development in the killifish (Fundulus heteroclitus). Aquatic Toxicology 76, 13-23.

Bradshaw, D. and S.D. McCormick. 2006. Hormonal control of salt and water balance in vertebrates--A symposium. General and Comparative Endocrinology 147, 1-2.

Castro-Santos, T. 2006. Modeling the effect of varying swim speeds on fish passage through velocity barriers. Transactions of the American Fisheries Society 135, 1230-1237.

Castro-Santos,T. and Haro,A. 2006. Biomechanics and fisheries conservation. In Fish Physiology Volume 23: Fish Biomechanics. Edited by R.E.Shadwick and G.V.Lauder. Academic Press, New York. pp. 469-523.

Elskus, A.A., L.A. LeBlanc, C. Kim, R. Van Beneden, and G. Mayer. 2006. Studying toxicity: the effects of dam removal. International Water Power & Dam Construction 58 (3), 30-32.

Godinho, A.L. and B. Kynard. 2006. Migration and spawning of radio-tagged zulega Prochilodus argenteus in a dammed Brazilian river. Transactions of the American Fisheries Society 135, 811-824.

Grader, M. and B.H. Letcher. 2006. Diel and seasonal variation in food habits of Atlantic salmon parr in a small stream. Journal of Freshwater Ecology 21 (3), 503-517.

Haro, A. 2006. Fish protection and downstream migration facilities for eastern North America diadromous species. Pages 85-90 In International DWA Symposium on Water Resources Management; 2006 Apr 3-2006 Apr 7; Wasser Berlin Germany.

McCormick, S.D. and D. Bradshaw. 2006. Hormonal control of salt and water balance in vertebrates. General and Comparative Endocrinology 147, 3-8.

Sakamoto, T. and S.D. McCormick. 2006. Prolactin and growth hormone in fish osmoregulation. General and Comparative Endocrinology 147, 24-30.

Sigourney, D.B., B.H. Letcher, and R.A. Cunjak. 2006. Influence of beaver activity on summer growth and condition of age-2 Atlantic salmon parr. Transactions of the American Fisheries Society 135 (4), 1068-1075.

Zydlewski, G.B., G. Horton, T. Dubreuil, B. Letcher, S. Casey, and J. Zydlewski. 2006. Remote monitoring of fish in small streams: a unified approach using PIT tags. Fisheries 31 (10), 492-502.




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