Unified Interior Regions

Region 1: North Atlantic-Appalachian

Our Science Centers

Our Science Centers

The NAA Region has 15 Science Centers spanning 14 NE States and Washington, DC. The Centers conduct interdisciplinary biologic, geologic, hydrologic, and energy monitoring and research addressing natural resource issues facing our nation.

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March Photo Contest

March Photo Contest

Check out the winning photographs in the March 2021 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

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Regions L2 Landing Page Tabs

Filter Total Items: 1,148
Date published: February 20, 2018
Status: Active

Giant African Land Snail

Originally from East Africa, the giant African land snail (Achatina fulica), has been established throughout the Indo-Pacific Basin, including the Hawaiian Islands.  Since 2011, these snails have been found in Miami, Florida. Although the current range is limited to the southern latitudes of Florida, this snail can withstand freezing and go into hibernation for as much as a year.  This allows...

Date published: February 15, 2018
Status: Archived

Biological Survey Unit

Scientists and staff of the USGS Patuxent Wildlife Research Center stationed at the Smithsonian National Museum of Natural History (NMNH) do research on the systematics and conservation of vertebrate species and curate and manage the North American collections of Amphibian, Reptile, Bird, and Mammal specimens and associated records.

Date published: February 15, 2018
Status: Active

Fish Passage

A major focus of USGS-LSC is the design and evaluation of state-of the-art upstream and downstream fish passage structures for hydropower facilities of different sizes and locations and for different fish species, including endangered sturgeons and Atlantic salmon. Performance, physiology, behavior and energetics of each fish species are tested in-house for each design.

Date published: February 13, 2018
Status: Completed

New England WSC seminar series Lamontagne 20180213

Author provided a technical summary of work in flood frequency analysis in the context of the new Bulletin 17C procedure.

Date published: February 12, 2018
Status: Active

Comprehensive 1966 - 2017 Results! North American Breeding Bird Survey

The North American Breeding Bird Survey program (BBS) provides critical science-based population data for more than 400 bird species to improve our understanding of how these federally entrusted species respond to environmental variability and ecosystem change.  The BBS generates results that inform Federal wildlife managers in the Fish and Wildlife Service, the National Park Service,...

Date published: February 9, 2018
Status: Active

Fish Physiology

Physiological demands are especially important to anadromous fish because of their need to move between freshwater and seawater and to make long, often difficult migrations. These demands can become critical when barriers to migration and other changes in river ecosystems occur. We are particularly interested in how environmental change, both of 'natural' and 'human' origins, affects normal...

Date published: February 9, 2018
Status: Active

Fish Behavior

Recent discoveries of the extent of sturgeon movement in the Gulf of Maine combined with relicensing and water use issues in the Connecticut River demand closer evaluation of shortnose and Atlantic sturgeon migration and behavior patterns. Through field collaboration with state, federal, university and military institutions LSC-Conte scientists work to define the significance of pre-spawning...

Contacts: Micah Kieffer
Date published: February 9, 2018
Status: Active

The West Brook Story

Natural systems, like rivers and streams, are remarkably complex, with many interacting parts. Data visualization tools make understanding and communicating complex ecological processes easier. Effective visualizations help users learn about patterns in data and how models work. Interactive visualizations are particularly useful, as they let users explore data and develop a personal...

Date published: February 9, 2018
Status: Active

Conservation Engineering

Engineering has an important role to play in the conservation of migratory fish species.  As a result of anthropogenic development on river systems, full and partial barriers to fish movement commonly exist in watersheds worldwide.  There is an estimated 2.5 million barriers to fish migration in the United States alone.  These barriers typically consist of small to large size dams, culverts,...

Date published: February 8, 2018
Status: Active

Lake Ontario Flood Monitoring and Mapping

Problem– Lake Ontario experienced period-of-record (1918-2017) maximum monthly average water levels during May through July 2017. NOAA lake gages recorded instantaneous peaks-of record, 249.2 at Olcott, 249.1 at Rochester, and 249.0 at Oswego and St. Vincent. These high water levels along with wind-generated waves caused flooding of thousands of residences and businesses and the erosion of...

Date published: February 7, 2018
Status: Active

Native Bee Inventory and Monitoring Lab

The USGS Native Bee Inventory and Monitoring Program designs and develops large and small scale surveys for native bees. As part of that program we also develop identification tools and keys for native bee species. One aspect of creating those tools is creating accurate and detailed pictures of native bees and the plants and insects they interact with.

Date published: February 5, 2018
Status: Active

Fish Ecology

Our goal is to identify the factors that govern population dynamics. Emphasis is on an integrative approach, combining field and laboratory studies to provide data for mathematical models of ecological and evolutionary dynamics. We focus on the fish that live in streams; how environmental variation, barriers to movement, and landscape characteristics influence changes in abundance over time...

Filter Total Items: 15,966
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Year Published: 2019

Establishing molecular methods to quantitatively profile gastric diet items of fish—Application to the invasive blue catfish (ictalurus furcatus)

Understanding the diet of invasive species helps researchers to more accurately assess the health, survivorship, growth, and stability of an invasive fish species, as well as their effects on native populations. Techniques capable of identifying multiple prey species from fish stomach contents have been developed. In this study, a multi-locus...

Iwanowicz, Deborah D.; Schill, W. Bane; Sanders, Lakyn R.; Tim Groves; Groves, Mary C.
Iwanowicz, D.D., Schill, W.B., Sanders, L.R., Groves, T., and Groves, M.C., 2019, Establishing molecular methods to quantitatively profile gastric diet items of fish—Application to the invasive blue catfish (Ictalurus furcatus): U.S. Geological Survey Open-File Report 2019–1021, 15 p., https://doi.org/10.3133/ofr20191021.

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Year Published: 2019

Mid-latitude net precipitation decreased with Arctic warming during the Holocene

The latitudinal temperature gradient between the Equator and the poles influences atmospheric stability, the strength of the jet stream and extratropical cyclones. Recent global warming is weakening the annual surface gradient in the Northern Hemisphere by preferentially warming the high latitudes; however, the implications of these changes for...

Cody Routson; Nicholas McKay; Kaufman, Darrell; Hugues Goosse; Bryan Shuman; Rodysill, Jessica; Toby Ault

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Year Published: 2019

Confronting uncertainty: Contributions of the wildlife profession to the broader scientific community

Most wildlife professionals are engaged in 1 or both of 2 basic endeavors: science and management. These endeavors are a focus of many other disciplines, leading to widespread sharing of general methodologies. Wildlife professionals have appropriately borrowed and assimilated many methods developed primarily in other disciplines but have also led...

Nichols, James D.

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Year Published: 2019

Scale‐dependent effects of isolation on seasonal patch colonisation by two Neotropical freshwater fishes

The metapopulation paradigm has been central to improve the conservation and management of natural populations. However, despite the large number of studies on metapopulation dynamics, the overall support for the relationships on which the paradigm is based has not been strong. Here, we studied the occupancy dynamics of two Neotropical fishes (i.e...

Penha, Jerry; Hakamada, Karlo Y. P.; Hines, James E.; Nichols, James D.

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Year Published: 2019

State-space analysis of power to detect regional brook trout population trends over time

Threats to aquatic biodiversity are expressed at broad spatial scales, but identifying regional trends in abundance is challenging owing to variable sampling designs, and temporal and spatial variation in abundance. We compiled a regional dataset of brook trout Salvelinus fontinalis counts across their southern range representing 326 sites from...

Pregler, Kasey C.; Hanks, R. Daniel; Childress, Evan S.; Hitt, Nathaniel P.; Hocking, Daniel J.; Letcher, Benjamin H.; Kanno, Yoichiro

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Year Published: 2019

100-kyr paced climate change in the Pliocene warm period, Southwest Pacific

The mid to late Pliocene (~4.2-2.8 Ma.) represents an experiment in climate sensitivity to orbital pacing in which nearly all continental ice was confined to the Southern Hemisphere. Most studies have emphasized the dominant role of obliquity in determining changes in ice volume and temperature at this time, although most records come from the...

Caballero-Gill, Rocio; Herbert, Timothy D.; Dowsett, Harry

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Year Published: 2019

Tectono-magmatic evolution of porphyry belts in the central Tethys region of Turkey, the Caucasus, Iran, western Pakistan, and southern Afghanistan

Exploration in the central Tethys region of Turkey, Armenia, Azerbaijan, Georgia, Iran, and western Pakistan has led to the identification of the giant Reko Diq (24 Mt Cu and 1300 t Au), Sar Cheshmeh (8.9 Mt Cu and 0.46 Mt Mo), Sungun (5.1 Mt Cu and 0.20 Mt Mo), and Kadjaran (4.6 Mt Cu, 0.94 Mt Mo, and 1100 t Au), and 10 other large (1–2 Mt Cu)...

Zürcher, Lukas; Bookstrom, Arthur A.; Hammarstrom, Jane M.; Mars, John C.; Ludington, Stephen; Zientek, Michael L.; Dunlap, Pamela; Wallis, John

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Year Published: 2019

Focus areas for data acquisition for potential domestic sources of critical minerals—Rare earth elements

Rare earth elements (REEs) are critical mineral commodities for the United States. In response to a need for information on potential domestic sources of REEs in mineral deposits, the U.S. Geological Survey (USGS) identified broad focus areas throughout the conterminous United States and Alaska as a guide for selecting new geoscience research...

Hammarstrom, Jane M.; Dicken, Connie L.
Hammarstrom, J.H., and Dicken, C.L., 2019, Focus areas for data acquisition for potential domestic sources of critical minerals—Rare earth elements, chap. A of U.S. Geological Survey, Focus areas for data acquisition for potential domestic sources of critical minerals: U.S. Geological Survey Open-File Report 2019–1023, 11 p., https://doi.org/10.3133/ofr20191023A.

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Year Published: 2019

Molecular characterization of Bathymodiolus mussels and gill symbionts associated with chemosynthetic habitats from the U.S. Atlantic margin

Mussels of the genus Bathymodiolus are among the most widespread colonizers of hydrothermal vent and cold seep environments, sustained by endosymbiosis with chemosynthetic bacteria. Presumed species of Bathymodiolus are abundant at newly discovered cold seeps on the Mid-Atlantic continental slope, however morphological taxonomy is challenging, and...

Coykendall, Dolly (Katharine); Cornman, Robert S.; Prouty, Nancy G.; Brooke, Sandra; Demopoulos, Amanda W. J.; Morrison, Cheryl L.
Coykendall, D.K., Cornman, R.S., Prouty, N.G., Brooke, S., Demopoulos, A.W.J., and Morrison, C.L., 2019, Molecular characterization of Bathymodiolus mussels and gill symbionts associated with chemosynthetic habitats from the U.S. Atlantic margin: PLoS ONE, v. 14, no. 3, art. e0211616, https://doi.org/10.1371/journal.pone.0211616.

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Year Published: 2019

Functional divergence of thyrotropin beta-subunit paralogs gives new insights into salmon smoltification metamorphosis

Smoltification is a metamorphic event in salmon life history, which initiates downstream migration and pre-adapts juvenile salmon for seawater entry. While a number of reports concern thyroid hormones and smoltification, few and inconclusive studies have addressed the potential role of thyrotropin (TSH). TSH is composed of a α-subunit common to...

Fleming, Mitchell S; Maugars, Gersende; LaFont, Anne-Gaelle; Fontaine, Romain; Weltzien, Finn-Arne; McCormick, Stephen D.

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Year Published: 2019

North American Commission on Stratigraphic Nomenclature Note 69 – Application for addition of subseries/subepoch to the North American Stratigraphic Code

Consistency in stratigraphic nomenclature enables communication among scientists both regionally and globally, thus requiring the North American Stratigraphic Code, as presented by the North American Commission on Stratigraphic Nomenclature, to follow international convention. The ratification of three subseries of the Holocene by the...

Aubry, Marie-Pierre; Fluegeman, Richard H.; Edwards, Lucy E.; Pratt, Brian R.; Brett, Carlton E.

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Year Published: 2019

Assessment of skin and liver neoplasms in white sucker (Catostomus commersonii) collected in the Sheboygan River Area of Concern, Wisconsin, in 2017

Two hundred adult white sucker (Catostomus commersonii), age 3 years and older, were collected from the lower Sheboygan River Area of Concern in 2017, during the spring spawning run. Fish were euthanized, weighed, and measured, and any visible abnormalities were documented. Pieces of raised skin lesions as well as five to eight pieces of liver...

Blazer, Vicki S.; Walsh, Heather L.; Braham, Ryan P.; Mazik, Patricia M.
Blazer, V.S., Walsh, H.L., Braham, R.P., and Mazik, P.M., 2019, Assessment of skin and liver neoplasms in white sucker (Catostomus commersonii) collected in the Sheboygan River Area of Concern, Wisconsin, in 2017: U.S. Geological Survey Open-File Report 2019–1014, 18 p., https://doi.org/10.3133/ofr20191014.

Filter Total Items: 1,705
Aerial image of Woods Hole Coastal and Marine Science Center's Quissett Campus
May 1, 2018

Bird's eye view of Woods Hole's Quissett Campus, MA

View from a drone!  Aerial view of Woods Hole Coastal and Marine Science Center's Quissett Campus.

A boat floating on calm, shallow waters with mountains far off in the distance.
April 30, 2018

Israel Oceanographic and Limnological Institute research boat Lillian

The Israel Oceanographic and Limnological Institute research boat Lillian on its way to deploy receivers in the Sea of Galilee to record data during an April, 2018 experiment to image the deep structure of the Dead Sea fault in Israel.

An instrument attached to a floatation orb floats in calm water alongside a boat.
April 30, 2018

Seismic receiver

One of 40 seismic receivers modified to work in water and anchored to the bottom of the Sea of Galilee in Israel's Dead Sea fault zone.

Two men pour pink powder into a hole in dirt, another man looks on, everyone is wearing safety gear and a hard hat.
April 30, 2018

Powder for seismic experiments

Contractors pour explosive powder into one of the holes where shots were detonated to provide seismic (sound) energy for the experiment. See study area map for shot locations.

Two men stand in a room looking at something on a table in the background, room filled with large trunks with equipment inside.
April 30, 2018

Downloading data from seismic receivers

Working in a temporary lab in Kibbutz Moran, Lloyd Carothers (left, IRIS-PASSCAL) and Eldad Levi (Geophysical Institute of Israel) download data from seismic receivers (in blue and yellow boxes) retrieved after completion of the Dead Sea fault experiment.

USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the offshore
April 25, 2018

Equipment recovery off Matanzas Inlet, FL

he USGS team and R/V Savannah crew prepare to lower the quadpod deployed at the offshore site onto the deck during recovery operations.  Note all the hairy encrusting organisms that grew in 3 months.

USGS staff uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating
April 25, 2018

Can you hear me now?

Steve Suttles (USGS) uses a radio to determine if an Acoustic Backscatter sensor (white circle) is still operating at the end of the deployment.

Deploying ground control targets
April 24, 2018

Ground control targets

Rob Thieler, Sandy Brosnahan and Alex Nichols deploying ground control targets for a UAS study on Coast Guard National Seashore in Eastham, MA.  

 

Drone Pilot Training
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone Pilot Training
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone Pilot Training Selfie
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Drone Pilot Training
April 24, 2018

Drone Pilot Training!

Elizabeth Pendleton and Seth Ackerman of the Woods Hole Coastal and Marine Science Center at A-450 drone pilot training in Gainesville, Florida in January 2018. Drone pilot training was provided by the DOI Office of Aviation Services (OAS), and was also attended by employees from USGS water and volcano centers, other DOI agencies, and the US Forest Service.

Filter Total Items: 590