• Barbash, P., J. Fletcher, A. Carta, S. Summerfelt, J. Bebak-Williams, D. Creaser. 2008. Reductions in bacterial micro-organisms by filtration and ozonation of the surface water supply at the USFWS Northeast Fishery Center, in Advances in Fisheries Bioengineering, Symposium 61 American Fisheries Society. 231 p. ISBN: 978-1-934874-02-8
• Bartron, M. L. and K. T. Scribner. 2004. Temporal comparisons of genetic diversity in Lake Michigan steelhead, Oncorhynchus mikiss, populations: effects of hatchery supplementation. Environmental Biology of Fishes 69: 395-407.
• Bartron, M. L., D. R. Swank, E. Rutherford, and K. T. Scribner. 2004. Methodological bias in estimates of strain composition and straying of hatchery-produced steelhead in Lake Michigan Tributaries. North American Journal of Fisheries Management 24: 1288-1299.
  (.pdf - 76 KB)
• Coloso, R. M., S. P. Basantes, K. King, M. A. Hendrix, J. W. Fletcher, P. Weis., and R. P. Ferraris. 2001. Effect of dietary phosphorus and vitamin D3 on phosphorus levels in effluent from experimental culture of rainbow trout. Aquaculture 202:145-161.
• Coloso, R. M., K. King, J. W. Fletcher, P. Weis, A. Werner, and R. P. Ferraris. 2003. Dietary P regulates phosphate transporter expression, phosphate activity, and effluent P partitioning in trout culture. Journal of Comparative Physiology B 173: 519 - 530.
• DiLauro, M. N., W. Kaboord, R. A. Walsh, W. F. Krise, and M. A. Hendrix. 1998. Sperm-cell ultrastructure of North American sturgeons. I. The Atlantic sturgeon (Acipenser oxyrynchus). Canadian Journal of Zoology 76:1822-1836.
• Ford, L. A., P. A. Barbash, and R. C. Cipriano. 1998. Control of furunculosis and enteric redmouth disease in sea-run Atlantic salmon Broodstock in the Connecticut and Merrimack rivers. The Progressive Fish-Culturist 60: 88-94.
  (.pdf - 59 KB)
• Hendrix, M. A. 1998. Culture techniques for Atlantic salmon in the Northeastern United States. Gary A. Wedemeyer, editor. Second U.S.-U.S.S.R. Symposium. Reproduction, rearing, and management of anadromous fishes. U.S. Printing Office:1998-693-322/42022. Region 10.
• Honeyfield, D. C., C. S. Ostrowski, J. W. Fletcher, and J. W. Mohler. 2006. Dietary calcein marking of brook trout, Atlantic salmon, yellow perch, and coho salmon scales. North American Journal of Fisheries Management 26: 431-437.
  (.pdf - 126 KB)
• Jodun, W. A. and M. J. Millard. 2001. Effect of iodophor concentration and duration of exposure during water hardening on survival of Atlantic salmon eggs. North American Journal of Aquaculture 63: 229-233.
  (.pdf - 61 KB)
• Jodun, W. A., M. J. Millard, and J. Mohler. 2002. The effect of rearing density on growth, survival, and feed conversion of juvenile Atlantic sturgeon. North American Journal of Aquaculture 64: 10-15.
  (.pdf - 234 KB)
• Jodun, W. A. 2004. Growth and feed conversion of sub-yearling Atlantic sturgeon at three feeding rates. Journal of Applied Aquaculture 15: 141 - 150.
• Jodun, W. A. K. King, P. Farrell, and W. Wayman. 2006. Methanol and egg yolks as cryoprotectants for Atlantic salmon spermatozoa. North American Journal of Aquaculture 69: 36-40.
  (.pdf - 56 KB)
• Kirchnwe, S., N. K. McDaniel, S. H. Sugiura, P. Soteropoulos, B. Tian, J.W. Fletcher, R.P. Ferraris. 2007. Salmonid microarrays identify intestinal genes that reliably monitor P deficiency in rainbow trout aquaculture. Animal Genetics 38: 319-331.
• King, K., and P. Farrell. 2002. Sensitivity of juvenile Atlantic sturgeon to three theraputic chemicals used in aquaculture. North American Journal of Aquaculture 64:60-65
  (.pdf - 67 KB)
• King, K. 2004. Growth, survival, and body composition of juvenile Atlantic sturgeon fed five commercial diets under hatchery conditions. North American Journal of Aquaculture 66: 53-60.
  (.pdf - 73 KB)
• McDaniel, N. K., S. H. Sugiura, T. Kehler, J. W. Fletcher, R. M. Coloso, P. Weis, and R. P. Ferraris. 2005. Dissolved oxygen and dietary phosphorus modulate utilization and effluent partitioning of phosphorus in rainbow trout (Oncorhyncus mykiss) aquaculture. Environmental Pollution 138: 350-357.
• Millard, M., S. Welsh, J. Fletcher, J. Mohler, A. Kahnle, and K. Hattala. 2003. Mortality associated with catch and release of striped bass in the Hudson River. Fisheries Management and Ecology 10: 295 - 300.
• Millard, M. J., J. W. Mohler, A. Kahnle, and A. Cosman. 2005. Mortality associated with catch-and-release angling of striped bass in the Hudson River. North American Journal of Fisheries Management 25: 1533-1541.
  (.pdf - 146 KB)
• Mohler, J. W., K. Fynn-Aikins, and R. Barrows. 1996. Feeding trials with juvenile Atlantic sturgeons propogated from wild broodstock. The Progressive Fish-Culturist 58: 173-177.
  (.pdf - 410 KB)
• Mohler, J. W. 1997. Immersion of Larval Atlantic salmon in calcein solutions to induce a non-lethally detectable mark. North American Journal of Fisheries Management 17: 751-756.
  (.pdf - 606 KB)
• Mohler, J. W., and J. W. Fletcher. 1999. Induced spermiation in wild Atlantic sturgeons held captive up to six years. North American Journal of Aquaculture 61:70-73.
  (.pdf - 37 KB)
• Mohler, J. W., M. K. King, and P. R. Farrell. 2000. Growth and survival of first-feeding and fingerling Atlantic sturgeon under culture conditions. North American Journal of Aquaculture 62: 174-183.
  (.pdf - 147 KB)
• Mohler, J. W. 2000. Early culture of the American Atlantic sturgeon Acipenser oxyrinchus oxyrinchus Mitchill, 1815 and preliminary stocking trials. Boletin, Instituto Espanol de Oceanografia 16:203-208.
• Mohler, J. W., M. J. Millard, and J. W. Fletcher. 2002. Predation by captive wild brook trout on calcein-marked versus nonmarked Atlantic salmon fry. North American Journal of Fisheries Management 22: 223-228.
  (.pdf - 57 KB)
• Mohler, J. W. 2003. Producing flourescent marks on Atlantic salmon fin rays and scales with calcein via osmotic induction. North American Journal of Fisheries Management 23: 1108-1113.
  (.pdf - 111 KB)
• Mohler, J. W., P. Morrison, and J. Haas. 2006. The mussels of Muddy Creek on Erie National Wildlife Refuge. Northeastern Naturalist 13:569-582.
• Rette, P. N., I. Dohoo, L. Hammell, N. Gagn, P. Barbash, S. MacLean and C. Yason. 2005. Estimation of the repeatability and reproducibility of three diagnostic tests for infectious salmon anemia virus. Journal of Fish Disease 28: 101-110.
• Smith, D., P. Pooler, B. Swan, S. Michels, W. Hall, P. Himchak, and M. Millard. 2002. Spatial and temporal distribution of horseshoe crab (Limulus polyphemus) spawning in Delaware Bay: Implications for monitoring. Estuaries 25(1)115-125.
• Smith, D. R., M. J. Millard, and S. Eyler. 2006. Abundance of adult horseshoe crabs (Limulus polyphemus) in Delaware Bay estimated from a bay-wide mark-recapture study. Fishery Bulletin 104: 456-464.
  (.pdf - 661 KB)
• Sweka, J. A. and K. J. Hartman. 2006. Effects of large woody debris addition on stream habitat and brook trout populations in Appalachian streams. Hydrobiologia 559: 363-378.
• Sweka, J. A., C. M. Legault, K. F. Beland, J. Trial, and M. J. Millard. 2006. Evaluation of removal sampling for basin-wide assessment of Atlantic salmon. North American Journal of Fisheries Management 26: 995-1002.
  (.pdf - 123 KB)
• Sweka, J. A., J. Mohler, M. J. Millard, T. Kehler, A. Kahnle, K. Hattala, G. Kenney, and A. Higgs. 2007. Juvenile Atlantic sturgeon habitat use in Newburgh and Haverstraw bays of the Hudson River: Implications for population monitoring. North American Journal of Fisheries Management 27: 1058-1067.
  (.pdf - 187 KB)
• Sweka, J. A., D. R. Smith, and M. J. Millard. 2007. An age-structured population model for horseshoe crabs in the Delaware Bay area to assess harvest and egg availability for shorebirds. Estuaries and Coasts 30: 277-286.
  (.pdf - 160 KB)
• Sweka, J.A. and K.J. Hartman. 2008. Contribution of terrestrial invertebrates to yearly brook trout prey consumption and growth. Transactions of the American Fisheries Society 137: 224-235.
• Underwood, T. J., J. A. Gordon, M. J. Millard, B. R. Lubinski, and S. P. Klosiewski. 2007. Appropriateness of the Darroch estimator for monitoring adult chum salmon on the middle Yukon River, Alaska. North American Journal of Fisheries Management 27: 303-314.
• Honeyfield, D. C., T. Kehler, J. W. Fletcher, and J. W. Mohler. In Press. The effect of artificial sunlight on the retention of calcein marks on lake trout evaluated with aid of a colorimetric key. North American Journal of Fisheries Management 00:00-00.
• Mohler, J.W. and K.M. Bradley. In press . Removal of calcein in wastewater produced from the batch marking of fish. North American Journal of Fisheries Management 28:000-000.

Technical Reports & Bulletins:

• Barbash, P., J.W. Fletcher, A. Carta, S. Summerfelt, J. Williams, and D. Creaser. 2002. Reductions in bacterial micro-organisms by filtration and ozonation of the surface water supply at the USFWSNortheastFisheryCenter. Technical Information Leaflet LM-02-03. U.S. Fish and Wildlife Service, Northeast Fishery Center, Lamar, PA.
• Bartron, M. L. 2005. Pleasant River parr and smolt parentage analysis for Craig Brook National Fish Hatchery. U.S. Fish & Wildlife Service, Lamar, PA.
• Coll, J.A. 2000. The National Wild Fish Health Survey - concept and recent findings/applications. Proceedings: Third East Coast Trout Management and Culture Workshop. June 6-8, 2000.
• Fletcher, J.W. 1998. Development of an American shad tank spawning system. Coastal Resources Program Project Report.
• Fletcher, J. 1999. Effect of two broodstock diets upon rainbow trout reproductive success. Technical Information Leaflet LM-98-01. U. S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA
• Fletcher, J. 2000. Investigations relative to poor reproductive success of landlocked Atlantic salmon (Salmo salar) reared at Allegheny National Fish Hatchery -incubation density and cold water disease. Technical Information Leaflet LM-99-01. U. S. Fish and Wildlife Service, Northeast Fishery Center, Lamar, PA.
• Fletcher, J.W. 2000. Selected review of literature pertinent to impacts of incubation temperature on Atlantic salmon fry. Technical Information Leaflet LM-00-08. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Fletcher, J. 2001. Effects of short term light deprivation upon milt production of feral Atlantic salmon. Technical Information Leaflet LM-00-09. U. S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Fletcher, J. 2001. Tank spawning techniques: relative efficacy of two hormones for inducing spawning in American shad. In Susquehanna River Anadromous Fish Restoration Committee. 2000. Restoration of American Shad to the Susquehanna River, Annual Progress Report. U.S. Fish and Wildlife Service, Harrisburg, PA.
• Fletcher, J.W. and M. J. Millard. 2002. Effect of hormone selection and water salinity upon tank spawning performance of American shad. In Susquehanna River Anadromous Fish Restoration Committee. Restoration of American Shad to the Susquehanna River, Annual Progress Report. U.S. Fish and Wildlife Service, 2001. Harrisburg, PA.
• Fletcher, J.W. and J.A. Sweka. 2003. Effects of hormone implant use in males, stocking density, and male to female ratio upon tank spawning performance of American shad. Chapter 2: Annual Report to the Susquehanna River Anadromous Fish Restoration Committee, Susquehanna River Commission, 2002. Harrisburg, PA.
• Jodun, W.A., and V. Catrow. 1998. A partial bibliography applicable to restoration of American shad (Alosa sapidissima) with emphasis on culture, tagging, spawning, transportation and disease. Technical Information Leaflet LM-98-10. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Julian, S. and M.L. Bartron. 2005. Fine-scale analysis of genetic population structure amon horseshoe crab spawning beaches in Delaware Bay. U.S. Fish & Wildlife Service, Lamar, PA
  (.pdf - 268 KB)
• Kehler, T. 2007. Year-class and growth assessment of Atlantic sturgeon in the Lower Hudson River. M.S. Thesis. Wildlife and Fisheries Science, Pennsylvania State University, University Park. 63 pp.
• King, K., J. Fletcher, W. Jodun, B. Wayman, and G. Looney. 2003. Cryopreservation of Atlantic salmon semen using five extender and cryoprotectant combinations. Technical Information Leaflet LM-02-07. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• King, K., and M. J. Millard. 2003. Use of epifluorescent microscopy and selective stains to determine the presence of lipofuscin in the horseshoe crab brain, as a possible indicator of age. Technical Information Leaflet LM-03-02. U.S. Fish and Wildlife Service, Northeast Fishery Center, Lamar, PA.
• McKeon, J., J. Sweka, J.Trial, J.Kocik,, C. Legault, and T. Sheehan. 2003. International Council for the Exploration of the Sea (ICES) North Atlantic Salmon Working Group Halifax, NS, Canada, National Report for the United States.
• Millard, M.J. 2000. The horseshoe crab stock assessment process; searching for clues. In Proceedings of the Delmarva Coastal Bays Conference III: Tri:State Approaches to Preserving Aquatic Resources. EPA/620/R-00/001. US EPA National Health and Environmental Effects Research Lab, Narragansett, RI.
• Millard, M.J., S. Welsh, J. Skjeveland, W. Fletcher, J. Mohler, M. Hendrix, A. Kahnle, and K. Hattala. 2000. Mortality associated with catch and release of American shad and striped bass in the Hudson River. Final Report: 1999 Project Year to: NY State Department of Environmental Conservation, Hudson River Fisheries Unit, New Palz, NY.
• Millard, M., W. Fletcher, J. Mohler, S. McCormick, M. O''Dea, D. Lerner, and A. Moeckel. 2001. Evaluating sedation as a means to suppress the stress response associated with handling and transport of American shad. Chapter 5: Annual Report to the Susquehanna River Anadromous Fish Restoration Committee, Susquehanna River Commission, Harrisburg, PA.
• Millard, M.J., J. Mohler, A. Kahnle, A. Cosman, K. Hattala, and W. Keller. 2001. Mortality associated with catch and release angling of striped bass in the Hudson River. Report to: NY State Dept. of Environmental Conservation, Hudson River Fisheries Unit, New Paltz, NY.
• Mohler, J.W. 1998. Short-term marking of American eel (Anguilla rostrata) elvers with the fluorescent compounds calcein and DCAF. Technical Information Leaflet LM-98-03. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Mohler, J.W. 1999. Use of calcein as an alternative or in combination with oxytetracycline for increased flexibility in batch-marking larval American shad Alosa sapidissima. Technical Information Leaflet LM-99-04. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Mohler, J.W., and J.W. Fletcher. 2000. Effect of density on Atlantic salmon eggs and alevins in incubator trays at White River National Fish Hatchery - Bethel, VT (Phase I and Phase II studies). Technical Information Leaflet LM-98-09. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA
• Mohler, J.W. 2002. Analysis of Atlantic salmon tissues for residual calcein fluorescence after osmotic induction of a calcein mark using SE-MARK TM. Technical Information Leaflet LM-02-01. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Mohler, J.W. 2002. Producing fluorescent marks on Atlantic salmon fin rays and scales with calcein via osmotic induction. Technical Information Leaflet LM-02-02. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Mohler, J.W. 2003. Cuture Manual for the Atlantic sturgeon Acipenser oxyrinchus oxyrinchus. Region 5 U.S. Fish & Wildlife Service Publication. U.S. Fish and Wildlife Service, Northeast Region, Hadley, MA
  (.pdf - 4.68 MB)
• Mohler, J.W. 2004. Evaluation of calcein-marked and unmarked Atlantic salmon fry stocked into the West Branch Sheepscot River, Maine. Technical Information Leaflet No. LM-04-01. U.S. Fish & Wildlife Service, Lamar, PA.
• Mohler, J.W. 2007. All that Atlantic sturgeon fry need are plenty of food, space, and clean tanks. World Aquaculture 38:55-56.
• Summerfelt, S., J. Bebak-Williams, J. Fletcher, A. Carta, and D. Creaser. (In Press). Description of the surface water filtration and ozone treatment system at the NortheastFisheryCenter. Bioengineering Symposium IV. American Fisheries Society.
• Swihart, G., M. Millard, N. Lazar, and C. Wenner. 2000. Gill net selectivity for the spring weakfish fishery near Delaware. A report to the Atlantic States Marine Fisheries Commission Weakfish Technical Committee, ASMFC, Washington, DC.
• Sweka, J.A., M. Millard, and J.F. McKeon. 2002. Evaluation of sampling methodology for Merrimack River age-1 Atlantic salmon parr abundance estimation (1994-2001). Fishery Management Report. U.S. Fish and Wildlife Service, NortheastFisheryCenter, Lamar, PA.
• Sweka, J. A., J. Mohler, and M. J. Millard. 2006. Relative Abundance Sampling of Juvenile Atlantic Sturgeon in the Hudson River. Final Report to the New Your State Department of Environmental Conservation, Hudson River Fisheries Unit, New Paltz, NY, 44 pages.
  (.pdf - 2.86 MB)
• Sweka, J. A., M. L. Bartron, J. Trial, and P. Christman. 2008. Assessment of watershed scale habitat features on the survival of juvenile Atlantic salmon. Final Report to the National Fish and Wildlife Foundation, Project Number: 2003-0118-028.
  (.pdf - 939 KB)

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Biological Activity Reports:

• 1993 (.pdf - 30 KB)
• 1994 (.pdf - 196 KB)
• 1995 (.pdf - 125 KB)
• 1996 (.pdf - 137 KB)
• 1997 (.pdf - 65 KB)
• 1998 (.pdf - 460 KB)
• 2002 (.pdf - 874 KB)
• 2003 (.pdf - 1,924 KB)
• 2004 (.pdf - 258 KB)
• 2005 (.pdf - 672 KB)
• 2006 (.pdf - 354 KB)

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