Reproductive failure of the red shiner (Cyprinella lutrensis) after exposure to an exogenous estrogen
M.M. McGree, D.L. Winkelman, N.K.M. Vieira, A.M. Vajda
2010, Canadian Journal of Fisheries and Aquatic Sciences (67) 1730-1743
Endocrine disrupting chemicals (EDCs) have been detected in surface waters worldwide and can lead to developmental and reproductive disruption in exposed fishes. In the US Great Plains, EDCs are impacting streams and rivers and may be causing adverse reproductive effects. To examine how estrogenic EDCs might affect reproductive success of...
Valuing ecosystem services from wetlands restoration in the Mississippi Alluvial Valley
W.A. Jenkins, B. C. Murray, R.A. Kramer, S.P. Faulkner
2010, Ecological Economics (69) 1051-1061
This study assesses the value of restoring forested wetlands via the U.S. government's Wetlands Reserve Program (WRP) in the Mississippi Alluvial Valley by quantifying and monetizing ecosystem services. The three focal services are greenhouse gas (GHG) mitigation, nitrogen mitigation, and waterfowl recreation. Site- and region-level measurements of these ecosystem services...
Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USA
Joseph L. Domagalski, Donald P. Weston, Minghua Zhang, Michelle L. Hladik
2010, Environmental Toxicology and Chemistry (29) 813-823
Pyrethroid insecticide use in California, USA, is growing, and there is a need to understand the fate of these compounds in the environment. Concentrations and toxicity were assessed in streambed sediment of the San Joaquin Valley of California, one of the most productive agricultural regions of the United States. Concentrations...
Effects of coalbed natural gas development on fish assemblages in tributary streams of the Powder and Tongue rivers
W.N. Davis, R.G. Bramblett, A.V. Zale
2010, Freshwater Biology (55) 2612-2625
1. Extraction of coalbed natural gas (CBNG) often results in disposal of large quantities of CBNG product water, which may affect aquatic ecosystems. We evaluated the effects of CBNG development on fish assemblages in tributary streams of the Powder and Tongue rivers. We used treatment and control, impact versus reference...
Evolution of a natural debris flow: In situ measurements of flow dynamics, video imagery, and terrestrial laser scanning
S.W. McCoy, J. W. Kean, J. A. Coe, D.M. Staley, T.A. Wasklewicz, G.E. Tucker
2010, Geology (38) 735-738
Many theoretical and laboratory studies have been undertaken to understand debris-flow processes and their associated hazards. However, complete and quantitative data sets from natural debris flows needed for confirmation of these results are limited. We used a novel combination of in situ measurements of debris-flow dynamics, video imagery, and pre-...
Dramatic beach and nearshore morphological changes due to extreme flooding at a wave-dominated river mouth
P.L. Barnard, J.A. Warrick
2010, Marine Geology (271) 131-148
Record flooding on the Santa Clara River of California (USA) during January 2005 injected ∼ 5 million m3 of littoral-grade sediment into the Santa Barbara Littoral Cell, approximately an order of magnitude more than both the average annual river loads and the average annual alongshore littoral transport in this portion...
Influence of organic carbon loading, sediment associated metal oxide content and sediment grain size distributions upon Cryptosporidium parvum removal during riverbank filtration operations, Sonoma County, CA
D.W. Metge, R.W. Harvey, G. R. Aiken, R. Anders, G. Lincoln, James Jasperse
2010, Water Research (44) 1126-1137
This study assessed the efficacy for removing Cryptosporidium parvum oocysts of poorly sorted, Fe- and Al-rich, subsurface sediments collected from 0.9 to 4.9 and 1.7–13.9 m below land surface at an operating riverbank filtration (RBF) site (Russian River, Sonoma County, CA). Both formaldehyde-killed oocysts and oocyst-sized (3 μm) microspheres were employed in sediment-packed flow-through...
Lake temperature and ice cover regimes in the Alaskan Subarctic and Arctic: Integrated monitoring, remote sensing, and modeling
C.D. Arp, Benjamin M. Jones, Matthew Whitman, A. Larsen, F.E. Urban
2010, Journal of the American Water Resources Association (46) 777-791
Lake surface regimes are fundamental attributes of lake ecosystems and their interaction with the land and atmosphere. High latitudes may be particularly sensitive to climate change, however, adequate baselines for these lakes are often lacking. In this study, we couple monitoring, remote sensing, and modeling techniques to generate baseline datasets...
Factors associated with mortality of walleyes and saugers caught in live-release tournaments
Harold Schramm Jr., Bruce C. Vondracek, William E. French, Patrick D. Gerard
2010, North American Journal of Fisheries Management (30) 238-253
We measured the initial mortality (fish judged nonreleasable at weigh-in), prerelease mortality (fish judged nonreleasable 1–2 h after weigh-in [which includes initial mortality]), and postrelease mortality (fish that died during a 5-d retention in net-pens) in 14 live-release tournaments for walleye Sander vitreus conducted in April–October 2006 and April–July 2007 in lakes...
Radar image and data fusion for natural hazards characterisation
Zhong Lu, Daniel Dzurisin, Hyung-Sup Jung, Jixian Zhang, Yonghong Zhang
2010, International Journal of Image and Data Fusion (1) 217-242
Fusion of synthetic aperture radar (SAR) images through interferometric, polarimetric and tomographic processing provides an all - weather imaging capability to characterise and monitor various natural hazards. This article outlines interferometric synthetic aperture radar (InSAR) processing and products and their utility for natural hazards characterisation, provides an overview of the...
Migration of waterfowl in the east asian flyway and spatial relationship to HPAI H5N1 outbreaks
John Y. Takekawa, S. H. Newman, X. Xiao, D.J. Prosser, K.A. Spragens, E.C. Palm, B. Yan, T. Li, F. Lei, D. Zhao, David C. Douglas, S.B. Muzaffar, W. Ji
2010, Avian Diseases (54) 466-476
Poyang Lake is situated within the East Asian Flyway, a migratory corridor for waterfowl that also encompasses Guangdong Province, China, the epicenter of highly pathogenic avian influenza (HPAI) H5N1. The lake is the largest freshwater body in China and a significant congregation site for waterfowl; however, surrounding rice fields and...
Reactive transport modeling to study changes in water chemistry induced by CO2 injection at the Frio-I Brine Pilot
T. Xu, Y.K. Kharaka, C. Doughty, B.M. Freifeld, T.M. Daley
2010, Chemical Geology (271) 153-164
To demonstrate the potential for geologic storage of CO2 in saline aquifers, the Frio-I Brine Pilot was conducted, during which 1600 tons of CO2 were injected into a high-permeability sandstone and the resulting subsurface plume of CO2 was monitored using a variety of hydrogeological, geophysical, and geochemical techniques. Fluid samples...
Response of a macrotidal estuary to changes in anthropogenic mercury loading between 1850 and 2000
E.M. Sunderl, J. Dalziel, A. Heyes, B.A. Branfireun, David P. Krabbenhoft, F.A.P.C. Gobas
2010, Environmental Science & Technology (44) 1698-1704
Methylmercury (MeHg) bioaccumulation in marine food webs poses risks to fish-consuming populations and wildlife. Here we develop and test an estuarine mercury cycling model for a coastal embayment of the Bay of Fundy, Canada. Mass budget calculations reveal that MeHg fluxes into sediments from settling solids exceed losses from sediment-to-water...
Evaluating the spatiotemporal variations of water budget across China over 1951-2006 using IBIS model
Q. Zhu, H. Jiang, J. Liu, X. Wei, C. Peng, X. Fang, S. Liu, G. Zhou, S. Yu, W. Ju
2010, Hydrological Processes (24) 429-445
The Integrated Biosphere Simulator is used to evaluate the spatial and temporal patterns of the crucial hydrological variables [run-off and actual evapotranspiration (AET)] of the water balance across China for the period 1951–2006 including a precipitation analysis. Results suggest three major findings. First, simulated run-off captured 85% of the spatial...
Spectral assessment of new ASTER SWIR surface reflectance data products for spectroscopic mapping of rocks and minerals
J.C. Mars, L. C. Rowan
2010, Remote Sensing of Environment (114) 2011-2025
ASTER reflectance spectra from Cuprite, Nevada, and Mountain Pass, California, were compared to spectra of field samples and to ASTER-resampled AVIRIS reflectance data to determine spectral accuracy and spectroscopic mapping potential of two new ASTER SWIR reflectance datasets: RefL1b and AST_07XT. RefL1b is a new reflectance dataset produced for this...
The impact of rare taxa on a fish index of biotic integrity
H. Wan, C.J. Chizinski, C.L. Dolph, B. Vondracek, B.N. Wilson
2010, Ecological Indicators (10) 781-788
The index of biotic integrity (IBI) is a commonly used bioassessment tool that integrates abundance and richness measures to assess water quality. In developing IBIs that are both responsive to human disturbance and resistant to natural variability and sampling error, water managers must decide how to weigh information about rare...
Evaluation of the use of performance reference compounds in an oasis-HLB adsorbent based passive sampler for improving water concentration estimates of polar herbicides in freshwater
N. Mazzella, S. Lissalde, S. Moreira, F. Delmas, P. Mazellier, J.N. Huckins
2010, Environmental Science & Technology (44) 1713-1719
Passive samplers such as the Polar Organic Chemical Integrative Sampler (POCIS) are useful tools for monitoring trace levels of polar organic chemicals in aquatic environments. The use of performance reference compounds (PRC) spiked into the POCIS adsorbent for in situ calibration may improve the semiquantitative nature of water concentration estimates...
Diviner lunar radiometer observations of cold traps in the moon's south polar region
D. A. Paige, M.A. Siegler, J.A. Zhang, P.O. Hayne, E.J. Foote, K.A. Bennett, A.R. Vasavada, B. T. Greenhagen, J. T. Schofield, D. J. McCleese, M. C. Foote, E. DeJong, B.G. Bills, W. Hartford, B. C. Murray, C. C. Allen, K. Snook, L.A. Soderblom, S. Calcutt, F. W. Taylor, N. E. Bowles, J. L. Bandfield, R. Elphic, R. Ghent, T.D. Glotch, M.B. Wyatt, P. G. Lucey
2010, Science (330) 479-482
Diviner Lunar Radiometer Experiment surface-temperature maps reveal the existence of widespread surface and near-surface cryogenic regions that extend beyond the boundaries of persistent shadow. The Lunar Crater Observation and Sensing Satellite (LCROSS) struck one of the coldest of these regions, where subsurface temperatures are estimated to be 38 kelvin. Large...
Sediment transport on the Palos Verdes shelf, California
B. Ferre, C. R. Sherwood, P.L. Wiberg
2010, Continental Shelf Research (30) 761-780
Sediment transport and the potential for erosion or deposition have been investigated on the Palos Verdes (PV) and San Pedro shelves in southern California to help assess the fate of an effluent-affected deposit contaminated with DDT and PCBs. Bottom boundary layer measurements at two 60-m sites in spring 2004 were...
Influence of coal-tar sealcoat and other carbonaceous materials on polycyclic aromatic hydrocarbon loading in an urban watershed
Y. Yang, P. C. Van Metre, B.J. Mahler, J.T. Wilson, B. Ligouis, M. Razzaque, D.J. Schaeffer, C.J. Werth
2010, Environmental Science & Technology (44) 1217-1223
Carbonaceous material (CM) particles are the principal vectors transporting polycyclic aromatic hydrocarbons (PAHs) into urban waters via runoff; however, characteristics of CM particles in urban watersheds and their relative contributions to PAH contamination remain unclear. Our objectives were to identify the sources and distribution of CM particles in an urban...
Agricultural wetlands as potential hotspots for mercury bioaccumulation: Experimental evidence using caged fish
Joshua T. Ackerman, Collin A. Eagles-Smith
2010, Environmental Science & Technology (44) 1451-1457
Wetlands provide numerous ecosystem services, but also can be sources of methylmercury (MeHg) production and export. Rice agricultural wetlands in particular may be important sites for MeHg bioaccumulation due to their worldwide ubiquity, periodic flooding schedules, and high use by wildlife. We assessed MeHg bioaccumulation within agricultural and perennial wetlands...
Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau
Gardner W. Payton, D. D. Susong, Solomon D. Kip, H. Heasler
2010, Journal of Hydrology (383) 209-222
Snowmelt hydrograph analysis and groundwater age dates of cool water springs on the Yellowstone volcanic plateau provide evidence of high volumes of groundwater circulation in watersheds comprised of quaternary Yellowstone volcanics. Ratios of maximum to minimum mean daily discharge and average recession indices are calculated for watersheds within and surrounding...
Distribution of non-breeding great lakes piping plovers (Charadrius melodus) along Atlantic and Gulf of Mexico coastlines: Ten years of band sightings
J. H. Stucker, F.J. Cuthbert, Brad Winn, B.L. Noel, S.B. Maddock, P.R. Leary, J. Cordes, L.C. Wemmer
2010, Waterbirds (33) 22-32
In 1993, a mark-recapture effort was initiated to band annually all Great Lakes Piping Plover nesting adults and offspring. With voluntary reporting by observers, >430 sightings of 154 individually-marked Great Lakes banded birds were documented on the wintering grounds during 19952005. This paper reports non-breeding distribution and site-fidelity and identifies...
Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River - an unregulated river embedded within a multiple-use landscape
H.H. Welsh, G.R. Hodgson, J.J. Duda, J.M. Emlen
2010, Animal Biodiversity and Conservation (33) 63-87
Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ecological services. We sampled 60 headwater tributaries in the South Fork Trinity River, a...
Judging a brook by its cover: The relation between ecological condition of a stream and urban land cover in new England
J.F. Coles, T. F. Cuffney, G. McMahon, C. J. Rosiu
2010, Northeastern Naturalist (17) 29-48
The US Geological Survey conducted an urban land-use study in the New England Coastal Basins (NECB) area during 2001 to determine how urbanization relates to changes in the ecological condition of streams. Thirty sites were selected that differed in their level of watershed development (low to high). An urban intensity...
