Leetown Science Center

Publications

Filter Total Items: 2,435
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Year Published: 2020

Assessment of microscopic pathology in fishes collected at sites impacted by wood tar in Pennsylvania

In an effort to determine whether fish populations in an area affected by wood tar waste exhibited health effects, fish were collected and analyzed with histopathology. Multiple species, including Mottled Sculpin (Cottus bairdii), Creek Chub (Semotilus atromaculatus), White Sucker (Catostumus commersonii), Redside Dace (Clinostomus elongatus),...

Walsh, Heather L.; Blazer, Vicki S.; Mazik, Patricia M.; Sperry, Adam J.; Pavlick, Diana
Walsh, H.L., Blazer, V.S., Mazik, P.M., Sperry, A.J., and Pavlick, D., 2020, Assessment of microscopic pathology in fishes collected at sites impacted by wood tar in Pennsylvania: U.S. Geological Survey Open-File Report 2020–1024, 14 p., https://doi.org/10.3133/ofr20201024.

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Year Published: 2020

Reconnaissance of surface water estrogenicity and the prevalence of intersex in smallmouth bass (Micropterus dolomieu) inhabiting New Jersey

The observation of testicular oocytes in male fishes has been utilized as a biomarker of estrogenic endocrine disruption. A reconnaissance project led in the Northeastern United States (US) during the period of 2008–2010 identified a high prevalence of intersex smallmouth bass on or near US Fish & Wildlife Service National Wildlife Refuges...

Iwanowicz, Luke; Smalling, Kelly; Blazer, Vicki S.; Braham, Ryan P.; Sanders, Lakyn R.; Boetsma, Anna; Procopio, Nick; Goodrow, Sandra; Buchanan, Gary; Millemann, Daniel; Ruppel, Bruce; Vile, John; Henning, Brian; Abatemarco, John

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Year Published: 2020

Monitoring chemical contaminants in the Gulf of Maine, using sediments and mussels (Mytilus edulis): An evaluation

The objective of this paper is to determine whether contaminant data on mussels and sediments can be used interchangeably, or not, when assessing the degree of anthropogenic contamination of a water body. To obtain adequate coverage of the entire Gulf of Maine, Bay of Fundy sediment samples were collected, analyzed and combined with similar data...

Elskus, Adria; LeBlanc, Lawrence A; Latimer, James S; Page, David; Harding, Gareth; Wells, Peter G

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Year Published: 2020

Spatial and temporal trends in Potomac River fish abundance linked to species traits

Analysis of species abundance trends can inform an understanding of the underlying mechanisms. We evaluated spatial and temporal trends in fish species abundance in the non-tidal Potomac River (USA) from a dataset comprising 2841 seine-hauls with > 250,000 individual fish records across 10 sites and 43 years (1975-2017). The dataset contained...

Hitt, Nathaniel P.; Rogers, Karli; Kelly, Zachary; Henesy, Josh; Mullican, John E.

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Year Published: 2020

Identification of management thresholds of urban development in support of aquatic biodiversity conservation

Urbanization degrades stream ecosystems and causes loss of bodiversity. Using benthic macroinvertebrates as a surragate for overall aquatic diversity, we conducted a series of analytical approaches to derive management thresholds of urban development designed to link ecological responses to the primary management goal of protecting aquatic...

Snyder, Craig D.; Young, John A.

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Year Published: 2020

Sustaining Environmental Capital Initiative summary report

Federal agencies need credible scientific information to determine the production and value of ecosystem services in an efficient and timely manner. The U.S. Geological Survey addresses this scientific information need through the Sustaining Environmental Capital Initiative project. The project has relied on U.S. Geological Survey expertise...

Huber, Christopher; Meldrum, James R.; Schuster, Rudy M.; Ancona, Zachary H.; Bagstad, Kenneth J.; Beck, Scott M.; Carlisle, Daren M.; Claggett, Peter R.; Franco, Fabiano; Galbraith, Heather S.; Haefele, Michelle; Hoelting, Kristin R; Hogan, Dianna M.; Hopkins, Kristina G.; Kern, Tim; Lawrence, Collin B.; Lischka, Stacy; Loomis, John B.; Mueller, Julie M.; Noe, Gregory B.; Pindilli, Emily J.; Quay, Brian; Semmens, Darius J.; Sinclair, Wilson; Spooner, Daniel E.; Voigt, Brian; St. John White, Barabara
Huber, C., Meldrum, J.R., Schuster, R.M., Ancona, Z.H., Bagstad, K.J., Beck, S.M., Carlisle, D.M., Claggett, P.R., Franco, F., Galbraith, H.S., Haefele, M., Hoelting, K.R., Hogan, D.M., Hopkins, K.G., Kern, T., Lawrence, C.B., Lischka, S., Loomis, J.B., Mueller, J.M., Noe, G.B., Pindilli, E.J., Quay, B., Semmens, D.J., Sinclair, W., Spooner, D.E., Voigt, B., and St. John White, B., 2020, Sustaining Environmental Capital Initiative summary report: U.S. Geological Survey Open-File Report 2019–1117, 23 p., https://doi.org/10.3133/ofr20191117.

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Year Published: 2020

Malignant melanoma of Brown Bullhead (Ameiurus nebulosus) in Lake Memphremagog, Vermont/Quebec

In 2012, brown bullhead (Ameiurus nebulosus) with large, raised, black growths were first reported from multiple areas within the Vermont portion of Lake Memphremagog. Subsequent surveys conducted from 2014 to 2017 at two sites within the lake indicated a prevalence of 30% in adult brown bullhead 200 mm and above total length. These lesions...

Blazer, Vicki S.; Shaw, Cassidy H.; Smith, Cheyenne R; Emerson, P; Jones, Thomas R.

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Year Published: 2020

Push and pull of downstream moving juvenile sea lamprey (Petromyzon marinus) exposed to chemosensory and light cues

Visual and olfactory stimuli induce behavioural responses in fishes when applied independently, but little is known about how simultaneous exposure influences behaviour, especially in downstream migrating fishes. Here, downstream moving juvenile sea lamprey (Petromyzon marinus) were exposed to light and a conspecific chemosensory alarm cue in a...

Johnson, Nicholas S.; Miehls, Scott M.; Haro, Alexander J.; Wagner, Michael C.

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Year Published: 2020

Assessing the hydrologic impact of historical railroad embankments on wetland vegetation response in Canaan Valley, WV (USA): The value of high-resolution data

The recovery of natural ecological processes after disturbance is poorly understood. Some disturbances may be so severe as to set ecosystems onto a new trajectory. The Canaan Valley National Wildlife Refuge in West Virginia protects a unique high-altitude wetland that was heavily disturbed by logging 100 years BP and has since transitioned to a...

Young, John A.; Welsch, Daniel; Deacon, Sarah

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Year Published: 2019

Exposure and potential effects of pesticides and pharmaceuticals in protected streams of the US National Park Service southeast Region

Globally protected areas offer refugia for a broad range of taxa including threatened and endangered species. The United States National Park Service (NPS) manages public lands to preserve biodiversity, but increasing park visitation and development of surrounding landscapes increase exposure to and effects from bioactive contaminants. The risk (...

Bradley, Paul; Romanok, Kristin; Duncan, Jeffrey R.; Battaglin, William; Clark, Jimmy; Hladik, Michelle; Huffman, Bradley; Iwanowicz, Luke; Journey, Celeste A.; Smalling, Kelly

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Year Published: 2019

Fishway entrance gate experiments with adult American Shad

The goal of this multiyear study was to examine how changes to an upstream fishway entrance impacted the passage rate of adult American shad (Alosa sapidissima). We evaluated a total of nine treatment conditions that consisted of three fishway entrance gate types and three submergence depths (i.e., the water surface elevation of the tailwater...

Mulligan, Kevin; Haro, Alexander J.; Towler, Brett; Sojkowski, Bryan; Noreika, John

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Year Published: 2019

In vitro immune function in laboratory-reared age-0 smallmouth bass (Micropterus dolomieu) relative to diet

Smallmouth bass (Micropterus dolomieu) are used as an indicator species in environmental monitoring and assessment studies. However, laboratory-based studies for methods development and effector assessment are limited for this species. Nutrition, a known modulator of teleost physiological responses including immune function, is a critical...

Ottinger, Christopher A.; Smith, Cheyenne R; Blazer, Vicki S.