The 17 July 2006 Tsunami earthquake in West Java, Indonesia
J. Mori, Walter D. Mooney, Afnimar, S. Kurniawan, A.I. Anaya, S. Widiyantoro
2007, Seismological Research Letters (78) 201-207
A tsunami earthquake (Mw = 7.7) occurred south of Java on 17 July 2006. The event produced relatively low levels of high-frequency radiation, and local felt reports indicated only weak shaking in Java. There was no ground motion damage from the earthquake, but there was extensive damage and loss of...
Metal accumulation in the earthworm Lumbricus rubellus. Model predictions compared to field data
K. Veltman, M.A.J. Huijbregts, M.G. Vijver, W.J.G.M. Peijnenburg, P.H.F. Hobbelen, J.E. Koolhaas, C.A.M. van Gestel, P.C.J. van Vliet, Hendriks A. Jan
2007, Environmental Pollution (146) 428-436
The mechanistic bioaccumulation model OMEGA (Optimal Modeling for Ecotoxicological Applications) is used to estimate accumulation of zinc (Zn), copper (Cu), cadmium (Cd) and lead (Pb) in the earthworm Lumbricus rubellus. Our validation to field accumulation data shows that the model accurately predicts internal cadmium concentrations. In addition, our results show...
Field evaluation of shallow-water acoustic doppler current profiler discharge measurements
M.S. Rehmel
2007, Conference Paper, Examining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006
In 2004, the U.S. Geological Survey (USGS) Office of Surface Water staff and USGS Water Science employees began testing the StreamPro, an acoustic Doppler current profiler (ADCP) for shallow-water discharge measurements. Teledyne RD Instruments introduced the StreamPro in December of 2003. The StreamPro is designed to make a "moving boat"...
Ra and Rn isotopes as natural tracers of submarine groundwater discharge in Tampa Bay, Florida
P.W. Swarzenski, C. Reich, K.D. Kroeger, M. Baskaran
2007, Marine Chemistry (104) 69-84
A suite of naturally occurring radionuclides in the U/Th decay series (222Rn, 223,224,226,228Ra) were studied during wet and dry conditions in Tampa Bay, Florida, to evaluate their utility as groundwater discharge tracers, both within the bay proper and within the Alafia River/estuary — a prominent free-flowing river that empties into...
Effects of ghost shrimp on zinc and cadmium in sediments from Tampa Bay, FL
P.L. Klerks, D.L. Felder, K. Strasser, P.W. Swarzenski
2007, Marine Chemistry (104) 17-26
This study investigated the effects that ghost shrimp have on the distribution of metals in sediment. We measured levels of HNO3-extractable zinc and cadmium in surface sediment, in ghost shrimp burrow walls and in sediment ejected by the ghost shrimp from their burrows, at five sandy intertidal sites in Tampa...
Submarine groundwater discharge to Tampa Bay: Nutrient fluxes and biogeochemistry of the coastal aquifer
Kevin D. Kroeger, Peter W. Swarzenski, Jason Greenwood, Christopher Reich
2007, Marine Chemistry (104) 85-97
To separately quantify the roles of fresh and saline submarine groundwater discharge (SGD), relative to that of rivers, in transporting nutrients to Tampa Bay, Florida, we used three approaches (Darcy's Law calculations, a watershed water budget, and a 222Rn mass-balance) to estimate rate of SGD from the Pinellas peninsula. Groundwater...
Seasonal variations on the residence times and partitioning of short-lived radionuclides (234Th, 7Be and 210Pb) and depositional fluxes of 7Be and 210Pb in Tampa Bay, Florida
M. Baskaran, P.W. Swarzenski
2007, Marine Chemistry (104) 27-42
Historically, Tampa Bay has been impacted heavily by a wide range of anthropogenic perturbations that may include, agricultural-, shipping-, phosphate mining/distribution-related activities, as well as a burgeoning coastal population. Due to the presence of U-rich underlying sediments, elevated activities of U- and Th-series daughter products may be naturally released into...
Plumbing the global carbon cycle: Integrating inland waters into the terrestrial carbon budget
J. J. Cole, Y.T. Prairie, N.F. Caraco, W. H. McDowell, L.J. Tranvik, Robert G. Striegl, C.M. Duarte, Pirkko Kortelainen, J. A. Downing, J. J. Middelburg, J. Melack
2007, Ecosystems (10) 171-184
Because freshwater covers such a small fraction of the Earth's surface area, inland freshwater ecosystems (particularly lakes, rivers, and reservoirs) have rarely been considered as potentially important quantitative components of the carbon cycle at either global or regional scales. By taking published estimates of gas exchange, sediment accumulation, and carbon...
Nutrient export from watersheds on Mt. Desert Island, maine, as a function of land use and fire history
M.G. Nielsen, J. S. Kahl
2007, Environmental Monitoring and Assessment (126) 81-96
A study of 13 small (less than 7.5 km2) watersheds on Mt. Desert Island, Maine, was conducted from January 1999 to September 2000 to determine nutrient export delivery to coastal waters around the island, and to determine whether a series of wildfires in 1947 have affected nutrient export in burned...
Diel mercury-concentration variations in streams affected by mining and geothermal discharge
David A. Nimick, R. Blaine McCleskey, C.H. Gammons, Tom Cleasby, S.R. Parker
2007, Science of the Total Environment (373) 344-355
Diel variations of concentrations of unfiltered and filtered total Hg and filtered methyl Hg were documented during 24-h sampling episodes in water from Silver Creek, which drains a historical gold-mining district near Helena, Montana, and the Madison River, which drains the geothermal system of Yellowstone National Park. The concentrations of...
Best management practices for nutrient and sediment retention in urban stormwater runoff
D.M. Hogan, M.R. Walbridge
2007, Journal of Environmental Quality (36) 386-395
Stormwater management infrastructure is utilized in urban areas to alleviate flooding caused by decreased landscape permeability from increased impervious surface cover (ISC) construction. In this study, we examined two types of stormwater detention basins, SDB-BMPs (stormwater detention basin-best management practice), and SDB-FCs (stormwater detention basin-flood control). Both are constructed to...
Age and trophic position dominate bioaccumulation of mercury and organochlorines in the food web of Lake Washington
J.K. McIntyre, D.A. Beauchamp
2007, Science of the Total Environment (372) 571-584
Understanding the mechanisms of bioaccumulation in food webs is critical to predicting which food webs are at risk for higher rates of bioaccumulation that endanger the health of upper-trophic predators, including humans. Mercury and organochlorines were measured concurrently with stable isotopes of nitrogen and carbon in key fishes and invertebrates...
Nitrate retention in riparian ground water at natural and elevated nitrate levels in North Central Minnesota
J.H. Duff, A. P. Jackman, F.J. Triska, R.W. Sheibley, R.J. Avanzino
2007, Journal of Environmental Quality (36) 343-353
The relationship between local ground water flows and NO3− transport to the channel was examined in three well transects from a natural, wooded riparian zone adjacent to the Shingobee River, MN. The hillslope ground water originated as recharge from intermittently grazed pasture up slope of the site. In the hillslope...
A new species of Tallaperla (Plecoptera: Peltoperlidae) from North Carolina, U.S.A.
B.C. Kondratieff, R.F. Kirchner, R.E. Zuellig, D. R. Lenat
2007, Entomological News (118) 81-82
A new species of Tallaperla, T. maiyae, is described from Wilkes County, North Carolina, U.S.A. from two males. The new species is similar to T. maria and T. anna, but can be distinguished by the combination of a prominent spine-like epiproct and brown coloration....
Emplacement of a silicic lava dome through a crater glacier: Mount St Helens, 2004-06
Joseph S. Walder, Richard G. Lahusen, James W. Vallance, Steve P. Schilling
2007, Annals of Glaciology (45) 14-20
The process of lava-dome emplacement through a glacier was observed for the first time after Mount St Helens reawakened in September 2004. The glacier that had grown in the crater since the cataclysmic 1980 eruption was split in two by the new lava dome. The two parts of the glacier...
Colored dissolved organic matter in Tampa Bay, Florida
Z. Chen, C. Hu, R.N. Conmy, F. Muller-Karger, P. Swarzenski
2007, Marine Chemistry (104) 98-109
Absorption and fluorescence of colored dissolved organic matter (CDOM) and concentrations of dissolved organic carbon (DOC), chlorophyll and total suspended solids in Tampa Bay and its adjacent rivers were examined in June and October of 2004. Except in Old Tampa Bay (OTB), the spatial distribution of CDOM showed a conservative...
Improving the accuracy of sediment-associated constituent concentrations in whole storm water samples by wet-sieving
W.R. Selbig, R. Bannerman, G. Bowman
2007, Journal of Environmental Quality (36) 226-232
Sand-sized particles (>63 ??m) in whole storm water samples collected from urban runoff have the potential to produce data with substantial bias and/or poor precision both during sample splitting and laboratory analysis. New techniques were evaluated in an effort to overcome some of the limitations associated with sample splitting and...
Littoral fish assemblages of the alien-dominated Sacramento-San Joaquin Delta, California, 1980-1983 and 2001-2003
L. R. Brown, D. Michniuk
2007, Estuaries and Coasts (30) 186-200
We analyzed monthly boat electrofishing data to characterize the littoral fish assemblages of five regions of the Sacramento-San Joaquin Delta (northern, southern, eastern, western, and central), California, during two sampling periods, 1980-1983 (1980s) and 2001-2003 (2000s), to provide information pertinent to the restoration of fish populations in this highly altered...
The effect of Appalachian mountaintop mining on interior forest
James D. Wickham, K.H. Riitters, T.G. Wade, Michael Coan, Collin G. Homer
2007, Landscape Ecology (22) 179-187
Southern Appalachian forests are predominantly interior because they are spatially extensive with little disturbance imposed by other uses of the land. Appalachian mountaintop mining increased substantially during the 1990s, posing a threat to the interior character of the forest. We used spatial convolution to identify interior forest at multiple scales...
Forensic fingerprinting of oil-spill hydrocarbons in a methanogenic environment-Mandan, ND and Bemidji, MN
Frances D. Hostettler, Y. Wang, Y. Huang, W. Cao, Barbara A. Bekins, Colleen E. Rostad, C. F. Kulpa, Andrew E. Laursen
2007, Environmental Forensics (8) 139-153
In recent decades forensic fingerprinting of oil-spill hydrocarbons has emerged as an important tool for correlating oils and for evaluating their source and character. Two long-term hydrocarbon spills, an off-road diesel spill (Mandan, ND) and a crude oil spill (Bemidji, MN) experiencing methanogenic biodegradation were previously shown to be undergoing...
Inflammatory reaction to fabric collars from percutaneous antennas attached to intracoelomic radio transmitters implanted in harlequin ducks (Histrionicus histrionicus)
Daniel M. Mulcahy, K.A. Burek, Daniel Esler
2007, Journal of Avian Medicine and Surgery (21) 13-21
In wild birds implanted intracoelomically with radio transmitters, a synthetic fabric collar placed around the base of a percutaneous antenna is believed to function as a barrier to contamination of the coelom. We examined 13 fabric collars recovered from percutaneous antennas of radio transmitters implanted intracoelomically in harlequin ducks (Histrionicus...
Occurrence of the amphibian pathogen Batrachochytrium dendrobatidis in the Pacific Northwest
C.A. Pearl, E. L. Bull, D. E. Green, J. Bowerman, M.J. Adams, A. Hyatt, W.H. Wente
2007, Journal of Herpetology (41) 145-149
Chytridiomycosis (infection by the fungus Batrachochytrium dendrobatidis) has been associated with amphibian declines in at least four continents. We report results of disease screens from 210 pond-breeding amphibians from 37 field sites in Oregon and Washington. We detected B. dendrobatidis on 28% of sampled amphibians, and we found ??? 1...
Conditions for coexistence of freshwater mussel species via partitioning of fish host resources
Brenda Rashleigh, D.L. DeAngelis
2007, Ecological Modelling (201) 171-178
Riverine freshwater mussel species can be found in highly diverse communities where many similar species coexist. Mussel species potentially compete for food and space as adults, and for fish host resources during the larval (glochidial) stage. Resource partitioning at the larval stage may promote coexistence. A model of resource utilization...
Evidence of experimental postcyclic transmission of Bothriocephalus acheilognathi in bonytail chub (Gila elegans)
S. P. Hansen, A. Choudhury, Rebecca A. Cole
2007, Journal of Parasitology (93) 202-204
We examined the role that predation of infected conspecific fish and postcyclic transmission might play in the life cycle of the Asian fish tapeworm, Bothriocephalus acheilognathi (Cestoda: Pseudophyllidea) Yamaguti, 1934. Young-of-the-year (YOY) bonytail chub (Gila elegans) were exposed to copepods infected with B. acheilognathi and subsequently fed to subadult bonytail chub. Within 1 wk...
Associations of decadal to multidecadal sea-surface temperature variability with Upper Colorado River flow
G.J. McCabe, J.L. Betancourt, H.G. Hidalgo
2007, Journal of the American Water Resources Association (43) 183-192
The relations of decadal to multidecadal (D2M) variability in global sea-surface temperatures (SSTs) with D2M variability in the flow of the Upper Colorado River Basin (UCRB) are examined for the years 1906-2003. Results indicate that D2M variability of SSTs in the North Atlantic, North Pacific, tropical Pacific, and Indian Oceans...
