Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10419
The Sargassum Frogfish (Histrio histrio Linnaeus) observed in mangroves in St. John, US Virgin Islands The Sargassum Frogfish (Histrio histrio Linnaeus) observed in mangroves in St. John, US Virgin Islands
The Sargassum Frogfish (Histrio histrio), the only pelagic member of the frogfish family Antennariidae, is considered an obligate associate of floating mats of the brown algae Sargassum natans and S. fluitans (Adams 1960; Dooley 1972; Pietsch and Grobecker 1987). Between February and April 2010, 20 of these fish were observed in three mangrove-fringed bays in Virgin Islands Coral Reef...
Authors
C.S. Rogers, T.W. Pietsch, J.E. Randall, R.J. Arnold
Flood-depth frequency relations for rural streams in Alabama, 2003 Flood-depth frequency relations for rural streams in Alabama, 2003
Equations have been defined for estimating the depth of water for floods having a 67-, 50-, 20-, 10-, 4-, 2-, and 1-percent chance exceedance on rural streams in Alabama. Multiple regression analyses of streamgage data were used to define the equations. Eight basin and climatic characteristics that were computed by using a geographical information system were evaluated as independent...
Authors
K.G. Lee, T.S. Hedgecock
Zn and Cu isotopes as tracers of anthropogenic contamination in a sediment core from an urban lake Zn and Cu isotopes as tracers of anthropogenic contamination in a sediment core from an urban lake
In this work, we use stable Zn and Cu isotopes to identify the sources and timing of the deposition of these metals in a sediment core from Lake Ballinger near Seattle, Washington, USA. The base of the Lake Ballinger core predates settlement in the region, while the upper sections record the effects of atmospheric emissions from a nearby smelter and rapid urbanization of the watershed...
Authors
Anita Thapalia, David M. Borrok, Peter C. Van Metre, MaryLynn Musgrove, Edward R. Landa
Development of inferential sensors for real-time quality control of water-level data for the Everglades Depth Estimation Network Development of inferential sensors for real-time quality control of water-level data for the Everglades Depth Estimation Network
The Everglades Depth Estimation Network (EDEN) is an integrated network of real-time water-level gaging stations, ground-elevation models, and watersurface models designed to provide scientists, engineers, and water-resource managers with current (2000-present) water-depth information for the entire freshwater portion of the greater Everglades. The generation of EDEN waterlevel surfaces...
Authors
Ruby C. Daamen, Jr. Edwin A. Roehl, Paul Conrads
Surface-water quality-assurance plan for the USGS Georgia Water Science Center, 2010 Surface-water quality-assurance plan for the USGS Georgia Water Science Center, 2010
The U.S. Geological Survey requires that each Water Science Center prepare a surface-water quality-assurance plan to describe policies and procedures that ensure high quality surface-water data collection, processing, analysis, computer storage, and publication. The Georgia Water Science Center's standards, policies, and procedures for activities related to the collection, processing...
Authors
Anthony J. Gotvald
Extreme drought to extreme floods: summary of hydrologic conditions in Georgia, 2009 Extreme drought to extreme floods: summary of hydrologic conditions in Georgia, 2009
The United States Geological Survey (USGS) Georgia Water Science Center (WSC) maintains a long-term hydrologic monitoring network of more than 317 real-time streamgages, more than 180 groundwater wells of which 31 are real-time, and 10 lake-level monitoring stations. One of the many benefits of data collected from this monitoring network is that analysis of the data provides an overview...
Authors
Andrew E. Knaak, Timothy K. Pojunas, Michael F. Peck
Words matter: Recommendations for clarifying coral disease nomenclature and terminology Words matter: Recommendations for clarifying coral disease nomenclature and terminology
Coral diseases have caused significant losses on Caribbean reefs and are becoming a greater concern in the Pacific. Progress in coral disease research requires collaboration and communication among experts from many different disciplines. The lack of consistency in the use of terms and names in the recent scientific literature reflects the absence of an authority for naming coral...
Authors
Caroline S. Rogers
Fish population dynamics in a seasonally varying wetland Fish population dynamics in a seasonally varying wetland
Small fishes in seasonally flooded environments such as the Everglades are capable of spreading into newly flooded areas and building up substantial biomass. Passive drift cannot account for the rapidity of observed population expansions. To test the reaction-diffusion mechanism for spread of the fish, we estimated their diffusion coefficient and applied a reaction-diffusion model. This...
Authors
Donald L. DeAngelis, Joel C. Trexler, Chris Cosner, Adam Obaza, Fred Jopp
Climate change effects on an endemic-rich edaphic flora: resurveying Robert H. Whittaker's Siskiyou sites (Oregon, USA) Climate change effects on an endemic-rich edaphic flora: resurveying Robert H. Whittaker's Siskiyou sites (Oregon, USA)
Species with relatively narrow niches, such as plants restricted (endemic) to particular soils, may be especially vulnerable to extinction under a changing climate due to the enhanced difficulty they face in migrating to suitable new sites. To test for community-level effects of climate change, and to compare such effects in a highly endemic-rich flora on unproductive serpentine soils vs...
Authors
Ellen Ingman Damschen, Susan Harrison, James B. Grace
Challenges and opportunities for integrating lake ecosystem modelling approaches Challenges and opportunities for integrating lake ecosystem modelling approaches
A large number and wide variety of lake ecosystem models have been developed and published during the past four decades. We identify two challenges for making further progress in this field. One such challenge is to avoid developing more models largely following the concept of others (‘reinventing the wheel’). The other challenge is to avoid focusing on only one type of model, while...
Authors
Wolf M. Mooij, Dennis Trolle, Erik Jeppesen, George Arhonditsis, Pavel V. Belolipetsky, Deonatus B.R. Chitamwebwa, Andrey G. Degermendzhy, Donald L. DeAngelis, Lisette N. De Senerpont Domis, Andrea S. Downing, J. Alex Elliott, Carlos Ruberto Fragoso, Ursula Gaedke, Svetlana N. Genova, Ramesh D. Gulati, Lars Hakanson, David P. Hamilton, Matthew R. Hipsey, Jochem ’t Hoen, Stephan Hulsmann, F. Hans Los, Vardit Makler-Pick, Thomas Petzoldt, Igor G. Prokopkin, Karsten Rinke, Sebastiaan A. Schep, Koji Tominaga, Anne A. Van Dam, Egbert H. Van Nes, Scott A. Wells, Jan H. Janse
Corals as climate recorders Corals as climate recorders
The U.S. Geological Survey (USGS) Coral Reef Ecosystem Studies (CREST) Project is analyzing corals from various sites in the Caribbean region, Dry Tortugas National Park, Biscayne National Park, other areas of the Florida Keys, and the Virgin Islands. The objective of this project is to develop records of past environmental change to better our understanding of climate variability. The...
Authors
Jennifer A. Flannery, Richard Z. Poore
EAARL Coastal Topography-Eastern Florida, Post-Hurricane Jeanne, 2004: First Surface EAARL Coastal Topography-Eastern Florida, Post-Hurricane Jeanne, 2004: First Surface
These remotely sensed, geographically referenced elevation measurements of lidar-derived first-surface (FS) topography datasets were produced collaboratively by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL, and the National Aeronautics and Space Administration (NASA), Wallops Flight Facility, VA. This project provides highly...
Authors
Xan Fredericks, Amar Nayegandhi, J.M. Bonisteel-Cormier, C. W. Wright, A. H. Sallenger, J. C. Brock, E.S. Klipp, D.B. Nagle