Publications
These publications showcase the significant science conducted in our Science Centers.
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Preliminary stage and streamflow data at selected U.S. Geological Survey streamgages in Maine and New Hampshire for the flood of October 30–31, 2017 Preliminary stage and streamflow data at selected U.S. Geological Survey streamgages in Maine and New Hampshire for the flood of October 30–31, 2017
Rainfall from a storm on October 24–27, 2017, and Tropical Storm Philippe on October 29–30, created conditions that led to flooding across portions of New Hampshire and western Maine. On the basis of streamflow data collected at 30 selected U.S. Geological Survey (USGS) streamgages in the Androscoggin River, Connecticut River, Merrimack River, and Saco River Basins, the storms caused...
Authors
Richard G. Kiah, Nicholas W. Stasulis
Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology Estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology
The water quality of the Chesapeake Bay may be adversely affected by dissolved nitrate carried in groundwater discharge to streams. To estimate the concentrations, loads, and yields of nitrate from groundwater to streams for the Chesapeake Bay watershed, a regression model was developed based on measured nitrate concentrations from 156 small streams with watersheds less than 500 square...
Authors
Silvia Terziotti, Paul D. Capel, Anthony J. Tesoriero, Jessica A. Hopple, Scott C. Kronholm
Changes in freshwater mussel communities linked to legacy pollution in the Lower Delaware River Changes in freshwater mussel communities linked to legacy pollution in the Lower Delaware River
Freshwater mussels are among the most-imperiled organisms worldwide, although they provide a variety of important functions in the streams and rivers they inhabit. Among Atlantic-slope rivers, the Delaware River is known for its freshwater mussel diversity and biomass; however, limited data are available on the freshwater mussel fauna in the lower, non-tidal portion of the river. This...
Authors
Carrie J. Blakeslee, Erik L. Silldorff, Heather S. Galbraith
Carbon budget of tidal wetlands, estuaries, and shelf waters of eastern North America Carbon budget of tidal wetlands, estuaries, and shelf waters of eastern North America
Carbon cycling in the coastal zone affects global carbon budgets and is critical for understanding the urgent issues of hypoxia, acidification, and tidal wetland loss. However, there are no regional carbon budgets spanning the three main ecosystems in coastal waters: tidal wetlands, estuaries, and shelf waters. Here we construct such a budget for eastern North America using historical...
Authors
R.G. Najjar, M. Herrmann, Richard B. Alexander, E.W. Boyer, D. J. Burdige, D. Butman, W.-J. Cai, E.A. Canuel, R.F. Chen, M. A. M. Friedrichs, R.A. Feagin, P. C. Griffith, A.L. Hinson, J.R. Holmquist, X. Hu, W.M. Kemp, Kevin D. Kroeger, A. Mannino, S.L. McCallister, W.R. McGillis, M.R. Mulholland, C. H. Pilskaln, J. Salisbury, S. R. Signorini, P. St. Laurent, H. Tian, M Tzortziou, P. Vlahos, Zhanming Wan, R. C. Zimmerman
Sensitivity of Na+/K+-ATPase isoforms to acid and aluminum explains differential effects on Atlantic salmon osmoregulation in fresh water and seawater Sensitivity of Na+/K+-ATPase isoforms to acid and aluminum explains differential effects on Atlantic salmon osmoregulation in fresh water and seawater
Atlantic salmon (Salmo salar) smolts are sensitive to acid rain and associated increases in dissolved inorganic aluminum (Al) resulting in decreased seawater tolerance at this critical life stage. Salmon have two major isoforms of the catalytic alpha subunit of Na+/K+-ATPase (NKA), with NKAα1a being the major freshwater (FW) isoform and NKAα1b the major seawater (SW) isoform. Here we...
Authors
Amy M. Regish, John T. Kelly, Michael F. O'Dea, Stephen D. McCormick
Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania Freshwater mussel salvage and relocation at the Pond Eddy Bridge, Delaware River, New York and Pennsylvania
In a study conducted by the U.S. Geological Survey, in cooperation with the Pennsylvania Department of Transportation, freshwater mussels were salvaged and relocated from the anticipated zone of impact for the Pond Eddy Bridge construction project in New York and Pennsylvania. Five 25-meter (m) by 25-m cells along the Pennsylvania bank of the Delaware River were sampled in three...
Authors
Heather S. Galbraith, Carrie J. Blakeslee, Jeffrey C. Cole
Environmental, anthropogenic, and dietary influences on fine-scale movement patterns of Atlantic salmon through challenging waters Environmental, anthropogenic, and dietary influences on fine-scale movement patterns of Atlantic salmon through challenging waters
Partial barriers to migration can affect migratory fish population dynamics and be influenced by many biotic, abiotic, and anthropogenic factors, including nutritional deficiencies. We investigated how such variables (including a thiamine deficiency) impact fine-scale movement of landlocked Atlantic salmon (Salmo salar) by treating returning spawners with thiamine and observing their...
Authors
Andrew B. Harbicht, Theodore R. Castro-Santos, Dimitry Gorsky, D.M. Hand, D.J. Fraser, W.R. Ardren
Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the eastern Alaska Range Application of imaging spectroscopy for mineral exploration in Alaska: A study over porphyry Cu deposits in the eastern Alaska Range
The U.S. Geological Survey tested the utility of imaging spectroscopy (also referred to as hyperspectral remote sensing) as an aid to regional mineral exploration efforts in remote parts of Alaska. Airborne imaging spectrometer data were collected in 2014 over unmined porphyry Cu deposits in the eastern Alaska Range using the HyMap™ sensor. Maps of the distributions of predominant...
Authors
Garth E. Graham, Raymond F. Kokaly, Karen D. Kelley, Todd M. Hoefen, Michaela Johnson, Bernard E. Hubbard
Environmental contaminants of health-care origin: Exposure and potential effects in wildlife Environmental contaminants of health-care origin: Exposure and potential effects in wildlife
A diverse range of fauna could be exposed to active pharmaceutical ingredients (APIs) via diet, dermal absorption or bioconcentration. Low level exposures of free-ranging wildlife to APIs has only been demonstrated for a few pathways (e.g., ingestion of fish in estuaries by piscivorous birds), and many remain hypothetical (e.g., ingestion of invertebrates in sludge amended fields by...
Authors
Thomas Bean, Barnett A. Rattner
Anomalous bioaccumulation of lead in the earthworm Eisenoides lonnbergi (Michaelsen) Anomalous bioaccumulation of lead in the earthworm Eisenoides lonnbergi (Michaelsen)
Lead concentrations in soil organisms are usually well below those in the associated soil and tend to decrease with each higher trophic level in a food chain. Earthworms of the species Eisenoides lonnbergi provide an exception to this observation, accumulating very high concentrations of lead from acidic soils. Earthworms belonging to this species were collected from strongly to...
Authors
W. Nelson Beyer, Eton E. Codling, Michael A. Rutzke
Molecular systematics and biodiversity of the Cryptotis mexicanus group (Eulipotyphla: Soricidae): two new species from Honduras supported Molecular systematics and biodiversity of the Cryptotis mexicanus group (Eulipotyphla: Soricidae): two new species from Honduras supported
Small-eared shrews of the genus Cryptotis (Mammalia: Eulipotyphla: Soricidae) are widespread in the northern Neotropics. Systematic studies of these shrews over the past two decades have revealed previously undocumented morphological and species diversity, resulting in a quadrupling of the number of recognized species. Unfortunately, a small proportion of the species in the genus have...
Authors
Amy B. Baird, Timothy J. McCarthy, Robert G. Trujillo, Yuan Yuan Kang, Mehdi Esmaeiliyan, Joselyn Valdez, Neal Woodman, John W. Bickham
Species distribution modeling in regions of high need and limited data: waterfowl of China Species distribution modeling in regions of high need and limited data: waterfowl of China
Background A number of conservation and societal issues require understanding how species are distributed on the landscape, yet ecologists are often faced with a lack of data to develop models at the resolution and extent desired, resulting in inefficient use of conservation resources. Such a situation presented itself in our attempt to develop waterfowl distribution models as part of a...
Authors
Diann J. Prosser, Changqing Ding, R. Michael Erwin, Taej Mundkur, Jeffery D. Sullivan, Erle C. Ellis