Tristen Tagliaferri

I have worked for the Long Island, NY sub-district office since 2004. Currently I am co-managing a growing network of continuous tide and water-quality monitors throughout Long Island


I began working in the basic data section in the Long Island, NY sub-district office in 2004 monitoring groundwater levels, helping to organize synoptic runs, surveying and doing general maintenance, and spent many summers sampling for NAWQA and other water-quality projects.

Since transferring to the EHI section in about 2008 I have been co-managing a growing network of continuous tide and water-quality monitors throughout Long Island in support of tidal wetland loss investigations, coastal flood warning systems, and improving the health of our bays. I also currently manage a seasonal network of dissolved oxygen monitors to determine the influence of hypoxic conditions on juvenile hard clam recruitment. Another project consists of sampling water and sediment for mosquito insecticides as the local vector control agency tests new materials and methods of application to combat new mosquito species with different behaviors, vector competencies, and emerging diseases. I have also taken on the role of part-time local data manager and help with related tasks as I can.

Other research interests include:

  • Water-quality effects on coastal marine organisms/habitat via stormwater runoff and contaminant transport in hyporheic zones
  • Seagrass conservation/restoration
  • Understanding local causes and effects of harmful algal blooms
  • Hydrodynamics and nutrient flux in wetlands.

I am also interested in finding innovative ways to monitor water-quality to further ecological health and conservation goals. I have used the continuous water-quality monitoring network to assist Stony Brook University in characterizing the variability of dissolved oxygen, pH, and CO2 to study ocean acidification as a stressor to marine organisms, especially in the face of climate change. Since using the University’s large, expensive, CO2 sensor; I have been working with a USGS colleague in Reston to develop affordable CO2 sensors that would work with our existing infrastructure and hold up in the marine environment. I was also recently introduced to autonomous underwater vehicle technology by the TX WSC and we used it to gather high resolution spatial data to complement the high resolution temporal data already collected in the network. I want one for our center! Another goal that is partially realized through experiences gained in the seasonal DO network is the development of a rapid-response, distributed water-quality monitoring network similar to SWaTH.   



M.S. in Environmental Studies with emphasis in Conservation Biology, Green Mountain College, 2011

B.A. in Environmental Studies with emphasis in Ecology, Stony Brook University, 2005


Baumann, Hannes, Wallace, R. B., Tagliaferri, Tristen, Gobler, C. J., Large natural pH, CO2 and O2 fluctuations in a temperate tidal salt marsh on diel, seasonal, and interannual time scales, 2014, Journal of the Coastal and Estuarine Research Federation, 10 p., accessed September 30, 2016 at

Fisher, I.J., et al., The impact of onsite wastewater disposal systems on groundwater in areas inundated by Hurricane Sandy in New York and New Jersey, Marine Pollution Bulletin (2016),

Schubert, C.E., Busciolano, Ronald, Cartwright, R.A., and Tagliaferri, T.N., 2013, Historic coastal flooding produced by Hurricane Sandy in southeastern New York (abs), in National Hydrologic Warning Council, 2013 Training Conference & Exposition, June 3-6, 2013, Ponte Vedra, Florida

Tagliaferri, T.N., and Abbene, I.J., 2011, Monitoring of Waterways for Mosquito Insecticides in Suffolk County, New York. Poster session presented at: 5th USGS/DEC Summit: New York Cooperative Program; Troy, NY.

Schubert, C.E., Cartwright, R.A., Lange, A.D., Petecca, T.N., 2008, Monitoring Tidal Water Elevation and Water Quality in Four Embayments of Long Island Sound to Assess Tidal Wetland Loss. Poster session presented at: Long Island Sound Research Conference Program; New London, CT.

Petecca, T.N., and Abbene, I.J., 2007, National Water Quality Assessment Program: Land-Use Study for Long Island. Poster session presented at: Long Island Groundwater Symposium: Brookhaven National Laboratory; Upton, NY.


Continuous and Spatially Distributed Dissolved Oxygen Monitoring in Long Island Estuaries in Support of Coastal Resource Management

Monitoring of Waterways for Mosquito Insecticides, Suffolk County, New York

Monitoring Tidal Water Elevation and Water Quality to Assess Tidal Wetland Loss in Four Embayments of Long Island Sound, New York


Tagliaferri, T.N., and Fisher, I.J., 2012, Monitoring of Waterways for Mosquito Insecticides in Suffolk County, NY [abs.], in Association of Long Island Geologists, Nineteenth Conference on Geology of Long Island and Metropolitan New York, Programs with Abstracts, State University of New York at Stony Brook, NY, April 14, 2012, accessed April 4, 2012, at