David Fischer

Manager of Hudson River Studies/Education Associate Research Specialist and Data Coordinator

2801 Sharon Turnpike; P.O. Box AB
Millbrook, NY 12545-0129 USA

845 677-7600 x178

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David Fischer manages Cary Institute's Hudson River research program which included routine monitoring of the pelagic and benthic communities from Troy to Haverstraw as well as a number of more focused short term studies of the many habitats and communities associated with the river ecosystem. He is also involved in collaborative efforts with NYSDEC including HRECOS river monitoring stations and a citizen science research program monitoring submerged aquatic vegetation (SAV) in the estuary.

In addition David is now a member of the Cary science education team.

Fate of Environmental Proteins (eProteins) from Genetically Engineered Crops in Streams is Controlled by Water pH and Ecosystem Metabolism
Brandão-Dias, Pedro F. P., Emma J. Rosi, Arial Shogren, Jennifer L. Tank, David T. Fischer, and Scott P. Egan. 2021. “Fate Of Environmental Proteins (Eproteins) From Genetically Engineered Crops In Streams Is Controlled By Water Ph And Ecosystem Metabolism”. Environmental Science & Technology 55 (8). American Chemical Society (ACS): 4688-4697. doi:10.1021/acs.est.0c05731.
Long‐term variability and density dependence in Hudson River Dreissena populations
Strayer, David L., David T. Fischer, Stephen K. Hamilton, Heather M. Malcom, Michael L. Pace, and Christopher T. Solomon. 2020. “Long‐Term Variability And Density Dependence In Hudson River Dreissena Populations”. Freshwater Biology 65 (3). Wiley: 474-489. doi:10.1111/fwb.13444.
Decadal-Scale Change in a Large-River Ecosystem
Strayer, David L., Jonathan J. Cole, Stuart E. G. Findlay, David T. Fischer, Jessica A. Gephart, Heather M. Malcom, Michael L. Pace, and Emma J. Rosi-Marshall. 2014. “Decadal-Scale Change In A Large-River Ecosystem”. Bioscience 64 (6): 496 - 510. doi:10.1093/biosci/biu061.
Ecosystem attributes related to tidal wetland effects on water quality
Findlay, Stuart E. G., and David T. Fischer. 2013. “Ecosystem Attributes Related To Tidal Wetland Effects On Water Quality”. Ecology 94 (1): 117 - 125. doi:10.1890/12-0464.1.
Biodiversity in Hudson River shore zones: influence of shoreline type and physical structure
Strayer, David L., Stuart E. G. Findlay, D.M. Miller, Heather M. Malcom, David T. Fischer, and Thomas Coote. 2012. “Biodiversity In Hudson River Shore Zones: Influence Of Shoreline Type And Physical Structure”. Aquat. Sci. 74: 597-610. doi:10.1007/s00027-012-0252-9.
Littoral-zone influences on particulate organic matter composition along the freshwater-tidal Hudson River, New York
Hunsinger, G. B., S. Mitra, Stuart E. G. Findlay, and David T. Fischer. 2012. “Littoral-Zone Influences On Particulate Organic Matter Composition Along The Freshwater-Tidal Hudson River, New York”. Limnology And Oceanography 57 (5): 1303-1316. doi:10.4319/lo.2012.57.5.1303.
Recovery of native zooplankton associated with increased mortality of an invasive mussel
Pace, Michael L., David L. Strayer, David T. Fischer, and Heather M. Malcom. 2010. “Recovery Of Native Zooplankton Associated With Increased Mortality Of An Invasive Mussel”. Ecosphere 1: W07415. doi:10.1890/ES10-00002.1.
Total carbon analysis may overestimate organic carbon content of fresh waters in the presence of high dissolved inorganic carbon
Findlay, Stuart E. G., William H. McDowell, David T. Fischer, Michael L. Pace, Nina F. Caraco, Sujay S. Kaushal, and Kathleen C. Weathers. 2010. “Total Carbon Analysis May Overestimate Organic Carbon Content Of Fresh Waters In The Presence Of High Dissolved Inorganic Carbon”. Limnol. Oceanogr. Methods 8: 196-201.
Wetland-driven shifts in suspended particulate organic matter composition of the Hudson River estuary, New York
Hunsinger, G. B., S. Mitra, Stuart E. G. Findlay, and David T. Fischer. 2010. “Wetland-Driven Shifts In Suspended Particulate Organic Matter Composition Of The Hudson River Estuary, New York”. Limnol. Oceanogr. 55: 1653-1667.
Predicting carbon and nutrient transformations in tidal freshwater wetlands of the Hudson River
Arrigoni, A., Stuart E. G. Findlay, David T. Fischer, and K. Tockner. 2008. “Predicting Carbon And Nutrient Transformations In Tidal Freshwater Wetlands Of The Hudson River”. Ecosystems 11: 790-802.
Multi-scale controls on water quality effects of submerged aquatic vegetation in the tidal freshwater Hudson River
Findlay, Stuart E. G., W.C. Nieder, and David T. Fischer. 2006. “Multi-Scale Controls On Water Quality Effects Of Submerged Aquatic Vegetation In The Tidal Freshwater Hudson River”. Ecosystems 9: 84-96.
Relationship of bacterial growth efficiency to spatial variation in bacterial activity in the Hudson River
del Giorgio, P. A., Michael L. Pace, and David T. Fischer. 2006. “Relationship Of Bacterial Growth Efficiency To Spatial Variation In Bacterial Activity In The Hudson River”. Aquat. Microb. Ecol. 45: 55-67. http://www.caryinstitute.org/reprints/del_Giorgio_et_al_2006_AME.pdf.
Changes in bacterial activity and community structure in response to dissolved organic matter in the Hudson River, New York
Kirchman, D. L., A. Dittel, Stuart E. G. Findlay, and David T. Fischer. 2004. “Changes In Bacterial Activity And Community Structure In Response To Dissolved Organic Matter In The Hudson River, New York”. Aquat. Microb. Ecol. 35: 243-257.
Estimates of bacterial production using the leucine incorporation method are influenced by differences in protein retention of microcentrifuge tubes
Pace, Michael L., P. A. del Giorgio, David T. Fischer, R. Condon, and Heather M. Malcom. 2004. “Estimates Of Bacterial Production Using The Leucine Incorporation Method Are Influenced By Differences In Protein Retention Of Microcentrifuge Tubes”. Limnol. Oceanogr. Methods 2: 55-61. http://www.caryinstitute.org/reprints/Pace_et_al_L_O_Meth_2004.pdf.
Submersed macrophyte effects on nutrient cycling in riverine sediments: contribution of "New" inputs
Wigand, C., M. Finn, Stuart E. G. Findlay, and David T. Fischer. 2001. “Submersed Macrophyte Effects On Nutrient Cycling In Riverine Sediments: Contribution Of "New" Inputs”. Estuaries 24: 398-406.
Dissolved oxygen declines in the Hudson River associated with the invasion of the zebra mussel (Dreissena polymorpha)
Caraco, Nina F., Jonathan J. Cole, Stuart E. G. Findlay, David T. Fischer, G. G. Lampman, Michael L. Pace, and David L. Strayer. 2000. “Dissolved Oxygen Declines In The Hudson River Associated With The Invasion Of The Zebra Mussel (Dreissena Polymorpha)”. Environ. Sci. Technol. 34: 1204-1210. http://www.sgnis.org/publicat/est1204.htm.
Sources of dissolved organic carbon supporting planktonic bacterial production in the tidal freshwater Hudson River
Findlay, Stuart E. G., Robert L. Sinsabaugh, David T. Fischer, and P. Franchini. 1998. “Sources Of Dissolved Organic Carbon Supporting Planktonic Bacterial Production In The Tidal Freshwater Hudson River”. Ecosystems 1: 227-239.
Effect of the invasive zebra mussel (Dreissena polymorpha) on the microbial food web in the tidal freshwater Hudson River
Findlay, Stuart E. G., Michael L. Pace, and David T. Fischer. 1998. “Effect Of The Invasive Zebra Mussel (Dreissena Polymorpha) On The Microbial Food Web In The Tidal Freshwater Hudson River”. Microb. Ecol. 36: 131-140.
Effects of an invasive bivalve on the zooplankton community of the Hudson River
Pace, Michael L., Stuart E. G. Findlay, and David T. Fischer. 1998. “Effects Of An Invasive Bivalve On The Zooplankton Community Of The Hudson River”. Freshwater Biol. 39: 103-116. http://www.sgnis.org/publicat/fb98_103.htm.
Microbial assimilation of DIN in a nitrogen rich estuary: implications for food quality and isotope studies
Caraco, Nina F., G. G. Lampman, Jonathan J. Cole, K. E. Limburg, Michael L. Pace, and David T. Fischer. 1998. “Microbial Assimilation Of Din In A Nitrogen Rich Estuary: Implications For Food Quality And Isotope Studies”. Mar. Ecol. Prog. Ser. 167: 59-71.