Summary: Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
Publications269 found, 100 shown here
- Global threats to human water security and river biodiversityC J Vörösmarty
The Environmental CrossRoads Initiative, City University of New York, The City College of New York, New York, New York 10035, USA
Nature 467:555-61. 2010....
- Effect of river landscape on the sediment concentrations of antibiotics and corresponding antibiotic resistance genes (ARG)Ruoting Pei
Department of Civil and Environmental Engineering, 1372 Campus Mail, Colorado State University, Fort Collins, 80523, USA
Water Res 40:2427-35. 2006..To the knowledge of the authors, this study is the first to demonstrate a relationship between urban and agricultural activity and microbial resistance in river sediments using quantitative molecular tools...
- Impact of changing water levels and weather on Oncomelania hupensis hupensis populations, the snail host of Schistosoma japonicum, downstream of the Three Gorges DamEdmund Y W Seto
School of Public Health, University of California, Berkeley, CA 94720, USA
Ecohealth 5:149-58. 2008..However, additional data are needed to determine whether snail populations that are typically destroyed by seasonal floods may live longer in more stable environments created by the dam...
- Effect of floods on the transmission of schistosomiasis in the Yangtze River valley, People's Republic of ChinaXiao Hua Wu
National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, People s Republic of China
Parasitol Int 57:271-6. 2008..In view of our findings, emergency responses are warranted as soon as possible after the occurrence of a flood in order to avoid or mitigate the reemergence and spread of human schistosomiasis in the People's Republic of China...
- Correlation between anammox activity and microscale distribution of nitrite in a subtropical mangrove sedimentRikke Louise Meyer
Advanced Wastewater Management Centre, The University of Queensland, St Lucia, QLD 4072, Australia
Appl Environ Microbiol 71:6142-9. 2005..This finding suggests that denitrification, though using NO2- as a substrate, also provides a substrate for the anammox process, which has been suggested in previous studies where microscale NO2- profiles were not measured...
- Dissolved organic carbon trends resulting from changes in atmospheric deposition chemistryDonald T Monteith
Environmental Change Research Centre, UCL, London, WC1E 6BT, UK
Nature 450:537-40. 2007..The increase in DOC concentrations in these regions appears unrelated to other climatic factors...
- Does fish ecology predict dispersal across a river drainage divide?Christopher P Burridge
Department of Zoology, University of Otago, PO Box 56, Dunedin, New Zealand
Evolution 62:1484-99. 2008..We employed two adjacent rivers in southern New Zealand to test for interdrainage dispersal while controlling for historical drainage geometry, ..
- Global hydrological cycles and world water resourcesTaikan Oki
Institute of Industrial Science, University of Tokyo, 4 6 1 Komaba, Meguro ku, Tokyo 153 8505, Japan
Science 313:1068-72. 2006..Reducing current vulnerability will be the first step to prepare for such anticipated changes...
- Prevalence of clonorchiasis in southern endemic areas of Korea in 2006Shin Hyeong Cho
Department of Malaria and Parasitic Diseases, National Institute of Health, Korea Centers for Disease Control and Prevention, Seoul 122 701, Korea
Korean J Parasitol 46:133-7. 2008..performed to investigate prevalence of clonorchiasis among the inhabitants living in villages along the 4 major rivers, Nakdong-gang (=river), Seomjin-gang, Youngsan-gang, and Guem-gang in southern Korea...
- Elevated microbial tolerance to metals and antibiotics in metal-contaminated industrial environmentsRamunas Stepanauskas
Savannah River Ecology Laboratory, University of Georgia, Drawer E, Aiken, South Carolina 29802, USA
Environ Sci Technol 39:3671-8. 2005....
- Three Gorges Dam and its impact on the potential transmission of schistosomiasis in regions along the Yangtze RiverHuai Min Zhu
Department of Etiologic Biology, Second Military Medical University, Shanghai 200433, China
Ecohealth 5:137-48. 2008....
- Light, nutrients, and herbivore growth in oligotrophic streamsWalter R Hill
Environmental Sciences Division, Oak Ridge National Laboratory, P O Box 2008, Oak Ridge, Tennessee 37830 6351, USA
Ecology 91:518-27. 2010..Competition for limited food resources in habitats where herbivore densities are uncontrolled by predation or other mortality factors should strongly influence the potential for herbivores to be limited by mineral deficits in their food...
- The combined effects of rivers and refugia generate extreme cryptic fragmentation within the common ground skink (scincella lateralis)Nathan D Jackson
Museum of Natural Science and Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana 70803, USA
Evolution 64:409-28. 2010b>Rivers can act as both islands of mesic refugia for terrestrial organisms during times of aridification and barriers to gene flow, though evidence for long-term isolation by rivers is mixed...
- Widespread occurrence of intersex in black basses (Micropterus spp.) from U.S. rivers, 1995-2004Jo Ellen Hinck
U S Geological Survey USGS, Columbia Environmental Research Center CERC, Columbia, MO 65201, USA
Aquat Toxicol 95:60-70. 2009....
- Biogeographical distribution of diverse anaerobic ammonium oxidizing (anammox) bacteria in Cape Fear River EstuaryOlivia R Dale
Department of Biology and Marine Biology, University of North Carolina Wilmington, NC 28403, USA
Environ Microbiol 11:1194-207. 2009..Thus, we demonstrated a biogeographical distribution of diverse anammox bacteria influenced by salinity, and provide evidence to link anammox abundance and activities in estuarine sediments...
- Impacts of salmon on riparian plant diversityMorgan D Hocking
Earth2Ocean Research Group, Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada
Science 331:1609-12. 2011..Predicting how salmon affect terrestrial ecosystems is central to conservation plans that aim to better integrate ecosystem values into resource management...
- Distribution and speciation of heavy metals in sediments from the mainstream, tributaries, and lakes of the Yangtze River catchment of Wuhan, ChinaZhifeng Yang
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
J Hazard Mater 166:1186-94. 2009..0% from tributaries, and 88.9% from lakes exhibited low and moderate ecological risk of heavy metals, and the potential ecological risks in the mainstream and tributaries were higher than those in lakes...
- Class 1 and class 2 integrons and plasmid-mediated antibiotic resistance in coliforms isolated from ten rivers in northern TurkeyOsman Birol Ozgumus
Microbiology and Molecular Biology Research Laboratory, Department of Biology, Faculty of Arts and Sciences, Rize University, 53100 Rize, Turkey
J Microbiol 47:19-27. 2009We aimed to determine the molecular mechanisms of antibiotic resistance in coliforms isolated from ten rivers in northern region of Turkey...
- Relating juvenile spatial distribution to breeding patterns in anadromous salmonid populationsAnders Foldvik
Norwegian Institute for Nature Research, Tungasletta 2, NO 7047 Trondheim, Norway
J Anim Ecol 79:501-9. 2010....
- Unprecedented restoration of a native oyster metapopulationDavid M Schulte
Department of Fisheries Science, Virginia Institute of Marine Science, The College of William and Mary, Gloucester Point, VA 23062, USA
Science 325:1124-8. 2009..This reestablished metapopulation is the largest of any native oyster worldwide and validates ecological restoration of native oyster species...
- Environmental fate of the antiviral drug Tamiflu in two aquatic ecosystemsMaria Ludovica Saccà
Department of Agro Environmental Science and Technology, University of Bologna, Viale Fanin 44, 40127 Bologna, Italy
Chemosphere 75:28-33. 2009..The low affinity of OC to sediments suggests that presence of sediments would not reduce its bioavailability to microbial degradation...
- Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USAJoseph L Domagalski
U S Geological Survey, 6000 J Street, Placer Hall, Sacramento, California 95819, USA
Environ Toxicol Chem 29:813-23. 2010....
- Detection of antibiotic resistance and tetracycline resistance genes in Enterobacteriaceae isolated from the Pearl rivers in South ChinaRan Tao
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 511 Kehua Street, Tianhe District, Guangzhou 510640, China
Environ Pollut 158:2101-9. 2010..resistance profiles and tetracycline resistance genes in Enterobacteriaceae family isolates from the Pearl rivers. The Enterobacteriaceae isolates were tested for susceptibility to seven antibiotics ampicillin, chloramphenicol, ..
- Antibiotic resistance characteristics of environmental bacteria from an oxytetracycline production wastewater treatment plant and the receiving riverDong Li
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing, China
Appl Environ Microbiol 76:3444-51. 2010....
- Population diversity and the portfolio effect in an exploited speciesDaniel E Schindler
School of Aquatic and Fishery Sciences, University of Washington, Box 355020, Seattle, Washington 98195 5020, USA
Nature 465:609-12. 2010..The reliability of ecosystem services will erode faster than indicated by species loss alone...
- Long-term stream invertebrate community alterations induced by the insecticide thiacloprid: effect concentrations and recovery dynamicsMikhail A Beketov
UFZ Helmholtz Centre for Environmental Research, Department System Ecotoxicology, Leipzig, Germany
Sci Total Environ 405:96-108. 2008..Realistic prediction of community recovery dynamics requires consideration of the species' life-cycle traits...
- Survival of migrating salmon smolts in large rivers with and without damsDavid W Welch
Kintama Research, Nanaimo, British Columbia, Canada
PLoS Biol 6:e265. 2008..works in both freshwater and the ocean, it is therefore possible to extend the measurement of survival to large rivers lacking dams, such as the Fraser, and to also extend the measurement of survival to the lower Columbia River and ..
- Linear habitats and the nested clade analysis: an empirical evaluation of geographic versus river distances using an Ozark crayfish (Decapoda: Cambaridae)James W Fetzner
Department of Integrative Biology, Brigham Young University, 675 Widtsoe Building, Provo, Utah 84602, USA
Evolution 57:2101-18. 2003....
- Stream denitrification across biomes and its response to anthropogenic nitrate loadingPatrick J Mulholland
Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
Nature 452:202-5. 2008..budgets show that an average of about 20-25 per cent of the nitrogen added to the biosphere is exported from rivers to the ocean or inland basins, indicating that substantial sinks for nitrogen must exist in the landscape...
- Nest distribution shaping within-stream variation in Atlantic salmon juvenile abundance and competition over small spatial scalesSigurd Einum
Norwegian University of Science and Technology, Department of Biology, NO 7491 Trondheim, Norway
J Anim Ecol 77:167-72. 2008....
- Influence of natural dissolved organic carbon on the bioavailability of mercury to a freshwater algaP R Gorski
Limnology and Marine Sciences Program, University of Wisconsin Madison, Madison, WI, USA
Environ Pollut 154:116-23. 2008..However, variability of BCFs at low DOC indicates that DOC composition or other ligands may determine site-specific bioavailability of Hg...
- Extremely high secondary production of introduced snails in riversRobert O Hall
Department of Zoology and Physiology, University of Wyoming, Laramie, Wyoming 82071, USA
Ecol Appl 16:1121-31. 2006..dominance of invertebrate secondary production by invasive New Zealand mudsnails (Potamopyrgus antipodarum) in rivers. We measured secondary production of mudsnails and native invertebrates in three rivers in the Greater Yellowstone ..
- Analyzing effects of pesticides on invertebrate communities in streamsMatthias Liess
UFZ Centre for Environmental Research, Permoserstrasse 15, D 04318 Leipzig, Germany
Environ Toxicol Chem 24:954-65. 2005..The results emphasize the importance of considering ecological traits and recolonization processes on the landscape level for ecotoxicological risk assessment...
- Biphasic behavior of anammox regulated by nitrite and nitrate in an estuarine sedimentMark Trimmer
School of Biological Sciences, Queen Mary, University of London, London E1 4NS, United Kingdom
Appl Environ Microbiol 71:1923-30. 2005..Overall, anammox is likely to be regulated by the availability of NO3- and NO2- and the relative size or activity of the anammox population...
- Comparing denitrification estimates for a Texas estuary by using acetylene inhibition and membrane inlet mass spectrometryMelody J Bernot
Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana 46556, USA
Appl Environ Microbiol 69:5950-6. 2003..The C2H2 inhibition method with chloramphenicol addition, conducted over short incubation intervals, provides a cost-effective method for estimating denitrification, and rate estimates are comparable to those obtained by the MIMS method...
- Seasonal and substrate preferences of fungi colonizing leaves in streams: traditional versus molecular evidenceLiliya G Nikolcheva
63B York Street, Department of Biology, Mt. Allison University, Sackville, New Brunswick E4L 1G7, Canada
Environ Microbiol 7:270-80. 2005..Biomasses of the various taxa (based on DGGE band intensities) were related to substrate type...
- Distribution patterns of mercury in lakes and rivers of northeastern North AmericaIan F Dennis
Environment Canada, Atlantic Region, PO Box 6227, Sackville NB E4L 1G6, Canada
Ecotoxicology 14:113-23. 2005....
- Bacterial tolerances to metals and antibiotics in metal-contaminated and reference streamsMeredith S Wright
University of Georgia, Savannah River Ecology Laboratory, Aiken, SC 29802, USA
FEMS Microbiol Ecol 58:293-302. 2006..Temporal dynamics were not directly correlated to a suite of physicochemical parameters, suggesting that tolerance patterns within microhabitats are linked to a complex interaction of the physicochemical characteristics of the stream...
- Evolutionary history and biogeographic affinities of the serranochromine cichlids in Zambian riversCyprian Katongo
Department of Zoology, University of Graz, Universitatsplatz 2, 8010 Graz, Austria
Mol Phylogenet Evol 45:326-38. 2007Zambian rivers belong to two major drainages: the Luapula-Congo and the Zambezi River system...
- Distribution and toxicity of sediment-associated pesticides in agriculture-dominated water bodies of California's Central ValleyD P Weston
Department of Integrative Biology, University of California, 3060 Valley Life Sciences Building, Berkeley, California 94720 3140, USA
Environ Sci Technol 38:2752-9. 2004....
- Determination and fate of oxytetracycline and related compounds in oxytetracycline production wastewater and the receiving riverDong Li
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, Beijing, China
Environ Toxicol Chem 27:80-6. 2008..The mean concentration of beta-apo-OTC in river sediments was 20.8 +/- 7.8 mg/kg, and its ratio to OTC was approximately 0.11, nearly twice the ratio of alpha-apo-OTC and EOTC to OTC (0.058 +/- 0.014 and 0.061 +/- 0.015, respectively)...
- Vector bionomics and malaria transmission in the Upper Orinoco River, Southern VenezuelaMagda Magris
Ministerio de Salud, Maracay, Venezuela
Mem Inst Oswaldo Cruz 102:303-11. 2007..The present study was the first longitudinal entomological and epidemiological study conducted in this area and set up the basic ground for subsequent intervention with insecticide-treated nets...
- Eighty-year sedimentary record of heavy metal inputs in the intertidal sediments from the Nanliu River estuary, Beibu Gulf of South China SeaPeng Xia
College of Marine Geo science, Ocean University of China, Qingdao 266100, China
Environ Pollut 159:92-9. 2011..The excess metal fluxes also showed a consistently increasing tread since the early 1990s, which could be associated with the intensive use of phosphate fertilizers and the combustion of fossil fuels derived from human activities...
- Oil and gas projects in the Western Amazon: threats to wilderness, biodiversity, and indigenous peoplesMatt Finer
Save America s Forests, Washington, DC, USA
PLoS ONE 3:e2932. 2008..Underlying this landscape are large reserves of oil and gas, many yet untapped. The growing global demand is leading to unprecedented exploration and development in the region...
- Ecological risk assessment of heavy metals in sediment and human health risk assessment of heavy metals in fishes in the middle and lower reaches of the Yangtze River basinYujun Yi
State Key Laboratory of Water Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
Environ Pollut 159:2575-85. 2011..Hg may also originate from coal combustion. Significant positive correlations between TN and As were observed...
- Neutral metacommunity models predict fish diversity patterns in Mississippi-Missouri basinRachata Muneepeerakul
Department of Civil and Environmental Engineering, E Quad, Princeton University, Princeton, New Jersey 08544, USA
Nature 453:220-2. 2008..This framework offers direct linkage from large-scale forcing, such as global climate change, to biodiversity patterns...
- Northern Rivers Ecosystem Initiative: nutrients and dissolved oxygen - issues and impactsPatricia A Chambers
National Water Research Institute, Burlington, Ontario, Canada
Environ Monit Assess 113:117-41. 2006..The Northern Rivers Ecosystem Initiative required a research and assessment program to establish the contribution of pulp mill and ..
- A Google Earth-based surveillance system for schistosomiasis japonica implemented in the lower reaches of the Yangtze River, ChinaLe Ping Sun
Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, Key Laboratory of the Ministry of Health, China
Parasit Vectors 4:223. 2011..In this study, we imported Google Earth technology and a Global Positioning System (GPS) into the monitoring system for schistosomiasis surveillance of the banks of the Yangtze River in Jiangsu Province, China...
- Influence of treated sewage effluent on organic pollution assessment in the Sakai River basin in Central JapanHiromi Kobori
Faculty of Environmental and Information Studies, Musashi Institute of Technology, 3 3 1 Ushikubo nishi, Tsuzuki ku, Yokohama, 224 0015, Japan
Environ Monit Assess 151:243-9. 2009A 5-day biochemical oxygen demand (BOD(5)) test has been used as the standard measurement of organic pollution in rivers worldwide...
- Intersex (testicular oocytes) in smallmouth bass from the Potomac River and selected nearby drainagesV S Blazer
U S Geological Survey, National Fish Health Research Laboratory, 11649 Leetown Road, Kearneysville, West Virginia 25430, USA
J Aquat Anim Health 19:242-53. 2007..The prevalence of testicular oocytes is discussed in terms of human population and agricultural intensity...
- Reproductive health of bass in the Potomac, U.S.A., drainage: part 1. Exploring the effects of proximity to wastewater treatment plant dischargeLuke R Iwanowicz
National Fish Health Research Laboratory, U S Geological Survey, 11649 Leetown Road, Kearneysville, West Virginia 25430, USA
Environ Toxicol Chem 28:1072-83. 2009..It appears that proximity to effluent from WWTPs may influence the reproductive health of bass in the Potomac watershed, but inputs from other sources likely contribute to the widespread, high incidence of testicular oocytes...
- Statistical modeling suggests that antiandrogens in effluents from wastewater treatment works contribute to widespread sexual disruption in fish living in English riversSusan Jobling
Institute for the Environment, Brunel University, Uxbridge, Middlesex, United Kingdom
Environ Health Perspect 117:797-802. 2009..In contrast, the accepted explanation for feminization of wild male fish is that it results mainly from exposure to steroidal estrogens originating primarily from human excretion...
- Pollution by psychoactive pharmaceuticals in the Rivers of Madrid metropolitan area (Spain)Silvia González Alonso
Department of Preventive Medicine, Public Health, Immunology, and Medical Microbiology, Faculty of Health Science, Rey Juan Carlos University, C Atenas s n, E 28922 Alcorcón, Madrid, Spain
Environ Int 36:195-201. 2010..present study was to determine the presence of different psychoactive pharmaceuticals and metabolites in the main rivers of Madrid metropolitan area: Jarama, Manzanares, Guadarrama, Henares and Tajo...
- Effects on tree swallows exposed to dioxin-like compounds associated with the Tittabawassee River and floodplain near Midland, Michigan, USATimothy B Fredricks
Michigan State University, East Lansing, Michigan, USA
Environ Toxicol Chem 30:1354-65. 2011..from site-specific contaminant exposures were evaluated at study areas (SAs) along the Tittabawassee and Saginaw rivers downstream of Midland...
- Evaluation of pollutants removal efficiency to achieve successful urban river restorationSung Min Cha
Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology GIST, Buk Gu, Gwangju 500 712, South Korea
Water Sci Technol 59:2101-9. 2009..Overall, this study suggests that a combination of the two can be plausible scenarios not only to support sustainable urban water resources management, but to enhance a quality of urban stream restoration assignment...
- Mortality of centrarchid fishes in the Potomac drainage: survey results and overview of potential contributing factorsV S Blazer
U S Geological Survey, National Fish Health Research Laboratory, 11649 Leetown Road, Kearneysville, West Virginia 25430, USA
J Aquat Anim Health 22:190-218. 2010..Since that year morbidity and mortality have also been observed in the Shenandoah and Monocacy rivers. Despite much research, no single pathogen, parasite, or chemical cause for the lesions and mortality has been ..
- The influence of colloids on the geochemical behavior of metals in polluted water using as an example Yongdingxin River, Tianjin, ChinaHuimin Ren
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco Environmental Sciences, Chinese Academy of Sciences, P O Box 2871, Beijing 100085, China
Chemosphere 78:360-7. 2010....
- Spatial and seasonal distribution of selected antibiotics in surface waters of the Pearl Rivers, ChinaJi Feng Yang
Chinese Academy of Sciences, State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Guangzhou, China
J Environ Sci Health B 46:272-80. 2011..trimethoprim, roxithromycin, erythromycin-H₂O and norfloxacin) were detected in the water samples of the three rivers and the effluents...
- Effects of Pleistocene glaciations and rivers on the population structure of Bornean orangutans (Pongo pygmaeus)Natasha Arora
Anthropological Institute and Museum, University of Zurich, 8057 Zurich, Switzerland
Proc Natl Acad Sci U S A 107:21376-81. 2010..distance tests, which show a significant correlation between mtDNA divergence and distance and a strong effect of rivers as barriers for female movement...
- Past and future trends in nutrients export by rivers to the coastal waters of ChinaHong juan Qu
Environmental Systems Analysis Group, Wageningen University, P O Box 47, 6700, AA Wageningen, The Netherlands
Sci Total Environ 408:2075-86. 2010..dissolved and particulate nitrogen (N), phosphorus (P) and carbon (C) to the coastal waters of China, for sixteen rivers, as calculated by the Global NEWS models (Nutrient Export from WaterSheds)...
- Passerine exposure to primarily PCDFs and PCDDs in the river floodplains near Midland, Michigan, USATimothy B Fredricks
Department of Zoology, Michigan State University, East Lansing, MI 48824, USA
Arch Environ Contam Toxicol 58:1048-64. 2010..dominated by furan congeners (69-84%), primarily 2,3,7,8-tetrachlorodibenzofuran and 2,3,4,7,8-pentachlorodibenzofuran, for all species at SAs on the Tittabawassee and Saginaw rivers but were dominated by dioxin congeners at upstream RAs.
- Spatio-temporal migration patterns of Pacific salmon smolts in rivers and coastal marine watersMichael C Melnychuk
Department of Zoology and Fisheries Centre, University of British Columbia, Vancouver, British Columbia, Canada
PLoS ONE 5:e12916. 2010..Descriptions of the natural range of variation in migration strategies among individuals and populations is necessary before the ecological consequences of such variation can be established...
- Multiple central-place territories in wild young-of-the-year Atlantic salmon Salmo salarStefán O Steingrímsson
Department of Biology, Concordia University, 7141 Sherbrooke Street W, Montreal, Quebec, H4B 1R6, Canada
J Anim Ecol 77:448-57. 2008..Further studies, however, are needed to clarify the evolutionary benefits and population consequences of multiple central-place space-use in mobile animals...
- Genetic structure and dynamics of a small introduced population: the pikeperch, Sander lucioperca, in the Rhône deltaNicolas Poulet
Cemagref, UR Hydrobiologie Equipe Ecosystèmes Lacustres, Montpellier, France
Genetica 135:77-86. 2009..This genetic diversity probably stem from both its popularity as game fish and food resource which led to numerous stocking and an increasing propagule pressure and the reproductive strategy of the species...
- Description of freshwater bacterial assemblages from the upper paraná river floodpulse system, BrazilMichael J Lemke
Biology Department, University of Illinois at Springfield, One University Plaza, Springfield, IL, 62703, USA
Microb Ecol 57:94-103. 2009..Verrucomicrobia OTUs were only found in the free-living assemblage. This study documents the presence of globally distributed phyla in Upper Paraná River and taxa unique to habitat and particle attachment...
- Physical heterogeneity increases biofilm resource use and its molecular diversity in stream mesocosmsGabriel Singer
Department of Freshwater Ecology, University of Vienna, Vienna, Austria
PLoS ONE 5:e9988. 2010..Yet, the interactions between microbial biodiversity and the molecular diversity of resource use are poorly understood...
- Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River BasinRichard B Alexander
National Water Quality Assessment Program, U S Geological Survey, 413 National Center, Reston, Virginia 20192, USA
Environ Sci Technol 42:822-30. 2008..include recognition of important differences in the agricultural sources of N and P, the role of atmospheric N, attention to P sources downstream from reservoirs, and better control of both N and P in close proximity to large rivers.
- Environmental restoration. Delta blues, California styleRobert F Service
Science 317:442-5. 2007
- Survival of Escherichia coli O157:H7 in waters from lakes, rivers, puddles and animal-drinking troughsL M Avery
School of the Environment and Natural Resources, Bangor University, Gwynedd, LL57 2UW, UK Catchment Management, Macaulay Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
Sci Total Environ 389:378-85. 2008..Survival of the pathogen was better in lake and puddle waters than in river or drinking trough waters. Further studies are needed to establish the key water quality factors that regulate pathogen survival...
- Relevance of peat-draining rivers for the riverine input of dissolved iron into the oceanRegina Krachler
Institute of Inorganic Chemistry, University of Vienna, Wahringerstrasse 42, 1090 Vienna, Austria
Sci Total Environ 408:2402-8. 2010..We applied a characterization of the colloidal iron carriers in peatland-draining rivers in North Scotland, using field-flow fractionation (FFF), in combination with end-member mixing experiments of ..
- Mercury bioaccumulation in a stream networkMartin Tsz Ki Tsui
Graduate Program in Water Resources Science, Department of Ecology, Evolution and Behavior, University of Minnesota, St Paul, Minnesota 55108, USA
Environ Sci Technol 43:7016-22. 2009..However, our results show that in the absence of wetlands, substantial spatial variation of Hg bioaccumulation can arise in stream networks due to the influence of in-stream processes...
- An assessment of the variation in the prevalence of renal myxosporidiosis and hepatitis in wild brown trout, Salmo trutta L., within and between rivers in South-West EnglandE J Peeler
Centre for Environment, Fisheries and Aquaculture Science, Weymouth, UK
J Fish Dis 31:719-28. 2008..These values can be used in future studies to estimate the sample sizes required to generate prevalence estimates with the required precision...
- Bioaccumulation syndrome: identifying factors that make some stream food webs prone to elevated mercury bioaccumulationDarren M Ward
Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire, USA
Ann N Y Acad Sci 1195:62-83. 2010..Finally, based on an understanding of the ecological drivers of MeHg accumulation, we identify situations when anthropogenic effects and management practices could significantly exacerbate or ameliorate MeHg accumulation in stream fish...
- A survey of Cryptosporidium oocysts in water supplies during a 10-year period (2000-2009) in SeoulMok Young Lee
Seoul Waterworks Research Institute, Seoul, Korea
Korean J Parasitol 48:219-24. 2010....
- Mercury in southeastern U.S. riverine fish populations linked to water body typeAndrew L Rypel
Department of Biological Sciences, University of Alabama, Box 870206, Tuscaloosa, Alabama 35487, USA
Environ Sci Technol 42:5118-24. 2008..We tested the generality of these findings by comparing largemouth bass Hg concentrations among unregulated rivers (n=6) and reservoirs (n=11) throughout the southern Coastal Plain geologic region...
- Route choices, migration speeds and daily migration activity of European silver eels Anguilla anguilla in the River Rhine, north-west EuropeA W Breukelaar
Rijkswaterstaat Waterdienst, AA Lelystad, The Netherlands
J Fish Biol 74:2139-57. 2009..Practical implications of the results for predicting emigration routes, timings and magnitudes and use in management initiatives to promote escapement of A. anguilla silver eels to the sea are critically discussed...
- Influence of sea temperature and initial marine feeding on survival of Atlantic salmon Salmo salar post-smolts from the Rivers Orkla and Hals, NorwayN A Hvidsten
Norwegian Institute for Nature Research, Tungasletta 2, NO 7485 Trondheim, Norway
J Fish Biol 74:1532-48. 2009..salar may be indirectly linked through variation in annual availability of pelagic fish larvae or other suitable food items in the early post-smolt phase...
- Occurrence of organic chemicals in two rivers inhabited by Ozark hellbenders (Cryptobranchus alleganiensis bishopi)M E Solís
Department of Biological Sciences and Environmental Research Center, University of Missouri Rolla, 105 Schrenk Hall, 1870 Miner Circle, Rolla, MO 65409, USA
Arch Environ Contam Toxicol 53:426-34. 2007..systematic, comprehensive study of organic chemical concentrations and physical and nutrient parameters in two rivers containing Ozark hellbender populations. Water samples were collected monthly from August 2003 to November 2004...
- High levels of perfluorochemicals in Taiwan's wastewater treatment plants and downstream rivers pose great risk to local aquatic ecosystemsAngela Yu Chen Lin
Graduate Institute of Environmental Engineering, National Taiwan University, 71, Chou Shan Rd, Taipei 106, Taiwan
Chemosphere 80:1167-74. 2010..The impact of IWWTP effluents on the receiving rivers (the Nanmen and Keya Rivers) was evaluated by measuring PFC levels in the surface waters of both rivers and the ..
- Determination and source apportionment of five classes of steroid hormones in urban riversHong Chang
Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, China
Environ Sci Technol 43:7691-8. 2009..discharging sites, and 4 composite effluent samples were analyzed to reveal their occurrence and sources in urban rivers. Of the 45 river samples, androgens were the dominant steroids detected (total concentrations up to 480 ng/L), ..
- Water hyacinths (Eichhornia crassipes) as indicators of heavy metal impact of a large landfill on the Almendares River near Havana, CubaS Olivares Rieumont
Laboratorio de Análisis Ambiental, Instituto Superior de Tecnologias y Ciencias Aplicadas, Ave Salvador Allende y Luaces, Plaza, Ciudad Habana, Cuba
Bull Environ Contam Toxicol 79:583-7. 2007..05), implying elevated levels likely result from landfill activity and might be useful biomonitors as river remediation proceeds...
- Out of the rivers: are some aquatic hyphomycetes plant endophytes?Marc Andre Selosse
New Phytol 178:3-7. 2008
- The impact of semiconductor, electronics and optoelectronic industries on downstream perfluorinated chemical contamination in Taiwanese riversAngela Yu Chen Lin
National Taiwan University, Graduate Institute of Environmental Engineering, Taipei, Taiwan
Environ Pollut 157:1365-72. 2009..of the semiconductor and electronics industries on perfluorinated chemicals (PFCs) contamination in receiving rivers. We have quantified ten PFCs, including perfluoroalkyl sulfonates (PFASs: PFBS, PFHxS, PFOS) and perfluoroalkyl ..
- Detection of human viruses in rivers of a densly-populated area in Germany using a virus adsorption elution method optimized for PCR analysesIbrahim Ahmed Hamza
Department of Hygiene, Social and Environmental Medicine, Ruhr University Bochum, Federal Republic of Germany
Water Res 43:2657-68. 2009Transmission of viruses via surface water is a major public health concern. To determine the viral concentration in rivers of a densely-populated area in Germany, the virus adsorption elution (VIRADEL) method was optimized for downstream ..
- Predators reverse the direction of density dependence for juvenile salmon mortalityDarren M Ward
Department of Biological Sciences, Dartmouth College, Hanover, NH 03755, USA
Oecologia 156:515-22. 2008....
- Faecal bacterial indicators removal in various wastewater treatment plants located in Almendares River watershed (Cuba)Tamara Garcia-Armisen
Ecologie des Systèmes Aquatiques, Universite Libre de Bruxelles, Brussels, Belgium
Water Sci Technol 58:773-9. 2008..This case study confirms the usefulness of small and natural WWTPs for tropical developing countries, even in urban and periurban areas...
- Flood hydrology and methylmercury availability in coastal plain riversPaul M Bradley
US Geological Survey, 720 Gracern Rd, Suite 129, Columbia, South Carolina 29210 7651, United States
Environ Sci Technol 44:9285-90. 2010..results indicate that flood hydrodynamics contribute to the variability in Hg vulnerability between Coastal Plain rivers and that comprehensive regional assessment of the relationship between flood hydrodynamics and Hg risk in Coastal ..
- SPEAR indicates pesticide effects in streams--comparative use of species- and family-level biomonitoring dataM A Beketov
UFZ Helmholtz Centre for Environmental Research, Department System Ecotoxicology, Permoserstrasse 15, D 04318 Leipzig, Germany
Environ Pollut 157:1841-8. 2009..Class boundaries for SPEAR(pesticides) according to EU Water Framework Directive are defined to contribute to the assessment of ecological status of water bodies...
- Predicting summer hypoxia in the northern Gulf of Mexico: riverine N, P, and Si loadingR E Turner
Coastal Ecology Institute, Louisiana State University, Baton Rouge, LA 70803, USA
Mar Pollut Bull 52:139-48. 2006..Nutrient management that places stronger emphasis on reducing nitrogen loading as compared to phosphorus loading, is justified...
- Evaluating the effects of chlortetracycline on the proliferation of antibiotic-resistant bacteria in a simulated river water ecosystemJeannette Muñoz Aguayo
Department of Veterinary and Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, 1971 Commonwealth Avenue, St Paul, MN 55108, USA
Appl Environ Microbiol 73:5421-5. 2007..Low concentrations of antibiotics in the environment may select for resistant bacterial populations once they are concentrated in sediments or other locations...
- Test of APEX for nine forested watersheds in East TexasX Wang
Texas Agricultural Experiment Stn, Blackland Research and Extension Center, 720 E Blackland Rd, Temple, TX 76502, USA
J Environ Qual 36:983-95. 2007..Overall, the results show that APEX was able to predict the effects of silvicultural practices with BMPs on water quantity and quality and that the model is a useful tool for simulating a variety of responses to forest conditions...
- Genetic diversity of Escherichia coli isolates in irrigation water and associated sediments: implications for source trackingLingeng Lu
Poultry Science Department, Food Safety and Environmental Microbiology Program, Texas A and M University, Kleberg Center, 2472 TAMUS, 418D Kleberg, College Station, TX 77843-2472, USA
Water Res 38:3899-908. 2004Identifying the sources of fecal contaminants in surface water bodies such as rivers and lakes is of significant importance for environmental quality, food safety and regulatory purposes...
- Climate impacts at multiple scales: evidence for differential population responses in juvenile Chinook salmonLisa Crozier
National Marine Fisheries Service, North west Fisheries Science Center, 2725 Montlake Blvd E, Seattle, WA 98112, USA
J Anim Ecol 75:1100-9. 2006..6. Climate change will likely have different impacts on different populations within this metapopulation, and recognizing this diversity is important for accurately assessing risks...
- Detection of Helicobacter pylori and fecal indicator bacteria in five North American riversMary A Voytek
US Geological Survey, Water Resources Division, 430 National Center, 12201 Sunrise Valley Dr, Reston, VA 20192, USA
J Water Health 3:405-22. 2005..and H. pylori from five North American rivers of different size and with different land use characteristics...
- Surveys of plasma vitellogenin and intersex in male flounder (Platichthys flesus) as measures of endocrine disruption by estrogenic contamination in United Kingdom estuaries: temporal trends, 1996 to 2001Mark F Kirby
Centre for Environment, Fisheries and Aquaculture Science Burnham Laboratory, Remembrance Avenue, Burnham on Crouch, Essex CM0 8HA, United Kingdom
Environ Toxicol Chem 23:748-58. 2004..The significance of the findings and possible mitigating influences are discussed in terms of the impacts on wild fish and the role of effluent treatment in reducing these...
- Epidemiology of Anguillicola crassus in the European eel (Anguilla anguilla) from two rivers in southern EnglandJ Norton
School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX
Parasitology 130:679-86. 2005European eels Anguilla anguilla from the rivers Thames and Test, in the south of England, were examined between 2000 and 2003 for infection with the swim-bladder nematode Anguillicola crassus...
- Occurrence and behaviour of 4-nonylphenol in river water of GermanyElke Fries
J W Goethe Universität Frankfurt am Main, FB Geowissenschaften, Institut fur Mineralogie, Umweltanalytik, Georg Voigt Str 14, D 60325 Frankfurt, Germany
J Environ Monit 5:598-603. 2003..Therefore dilution was not the determinant factor of the 4-NP concentration in river water. The diurnal dynamics of the sewage treatment works (STWs) have to be considered as an influencing factor for the presence of 4-NP in river water...
- Routine monitoring of antibiotics in water and wastewater with a radioimmunoassay techniqueShinwoo Yang
Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523-1372, USA
Water Res 38:3155-66. 2004..The method provides a semi-quantitative composite measurement of similar compounds in an antibiotic family without complex and expensive analytical equipment...
- Concurrent comparison of three water contact measurement tools in four endemic villages of the Philippines. The schistosomiasis transmission ecology in the Philippines project (STEP)G Payne
Oklahoma City County Health Department, Oklahoma City, OK, USA
Trop Med Int Health 11:834-42. 2006..Schistosomiasis japonica is a chronic helminthic infection contracted through contact with water infested with Schistosoma japonicum. The infection is associated with severe disease and is an important public health concern in Philippines...
- A classification of U.S. estuaries based on physical and hydrologic attributesVirginia D Engle
ORD NHEERL, Gulf Ecology Division, U S Environmental Protection Agency, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA
Environ Monit Assess 129:397-412. 2007....
- Evolution of antibiotic occurrence in a river through pristine, urban and agricultural landscapesShinwoo Yang
Department of Civil Engineering, Colorado State University, Fort Collins, CO 80523-1372, USA
Water Res 37:4645-56. 2003..At Site 5, which had both urban and agricultural influences all five of the TCs monitored were detected indicating both urban and agricultural influences. The concentration of TCs at Site 5 ranged from 0.08 to 0.30 microg/L...
- Riparian nutrients and food webs on a regulated riverTERESA TIBBETS; Fiscal Year: 2005..ecosystems has become one of the most intense areas of research as human demands for freshwater from streams and rivers increase worldwide...
- Development of vector-specific, resistance-breaking insecticides to reduce malariPaul R Carlier; Fiscal Year: 2010..We propose to develop a new class of insecticide that is safe for ITN deployment, effective against current insecticide-resistant mosquitoes, and less likely to promote emergence of new resistant strains. ..
- Development of vector-specific, resistance-breaking insecticides to reduce malariPAUL CARLIER; Fiscal Year: 2009..We propose to develop a new class of insecticide that is safe for ITN deployment, effective against current insecticide-resistant mosquitoes, and less likely to promote emergence of new resistant strains. ..
- B.pseudomallei bioterrorism and quorum sensingDANIEL HASSETT; Fiscal Year: 2003..A major area of concern is the distribution and survival of pathogenic bacteria in lakes, rivers, streams, swimming pools, our water supply and soils...
- Portable Pesticide MonitorTONY RAGUCCI; Fiscal Year: 2007....
- Physiological response of Escherichia coli to temperature and desiccation stressSusan Bornstein Forst; Fiscal Year: 2006Fecal pollution of public waterways, rivers, and lakes is a global problem of increasing concern, however, little is known about the survival and persistence of biological contaminants in the surrounding terrestrial environments ..
- ANALYSIS AND ANNOTATION OF THE E. COLI GENOME SEQUENCEKENNETH RUDD; Fiscal Year: 2009..The wealth of information collected at EcoGene.org from all over the world about the life of E. coli, both friend and foe of man, should help in achieving this ..
- ANALYSIS AND ANNOTATION OF THE E. COLI GENOME SEQUENCEKENNETH EDWARD RUDD; Fiscal Year: 2010..The wealth of information collected at EcoGene.org from all over the world about the life of E. coli, both friend and foe of man, should help in achieving this ..
- MECHANISMS OF METHYLMERCURY INDUCED NEURONAL TOXICITYMichael Aschner; Fiscal Year: 1999....
- Reinforcing Effects of Alcohol During Group FormationMichael Sayette; Fiscal Year: 2007..abstract_text> ..
- Reinforcing Effects of Alcohol During Group FormationMichael Sayette; Fiscal Year: 2009..abstract_text> ..
- Striatal Deep Brain Stimulation for Learning EnhancementEmad Eskandar; Fiscal Year: 2009....
- Striatal Deep Brain Stimulation for Learning EnhancementEmad N Eskandar; Fiscal Year: 2010....
- Striatal Deep Brain Stimulation for Learning EnhancementEmad N Eskandar; Fiscal Year: 2010....
- FUNCTIONAL ORGANIZATION OF PRIMARY AUDITORY CORTEXChristoph E Schreiner; Fiscal Year: 2011..Once the normal functions are better understood, the detrimental consequences of hearing loss on these central mechanisms can be examined and may lead to the development of new therapeutic approaches to communicative disorders. ..
- In Vivo Analysis of the Mechanisms of Neural Crest MigrationPaul M Kulesa; Fiscal Year: 2010....
- Testing a Comorbid PTSD & Substance/Alcohol Use Intervention in Delinquent GirlsAmy E Lansing; Fiscal Year: 2010..This research will serve as a model for implementing and evaluating evidence based treatments with high-risk youth who gain the attention of the Juvenile Court but are traditionally underserved in the general community. ..
- Integration of ascending and descending input to auditory cortexMatthew I Banks; Fiscal Year: 2010..The proposed experiments will elucidate how one such cortical feedback circuit affects the processing of incoming auditory information. ..
- Integration of ascending and descending input to auditory cortexMatthew Banks; Fiscal Year: 2009..The proposed experiments will elucidate how one such cortical feedback circuit affects the processing of incoming auditory information. ..
- Alcohol and Condom Use Resistance in Sexually Coercive/Violent MenKelly Cue Davis; Fiscal Year: 2010....
- CELLULAR MECHANISMS OF AUDITORY INFORMATION PROCESSINGPAUL MANIS; Fiscal Year: 2009..These experiments will ultimately generate insights for alternative stimulation strategies for the hard-of-hearing, and for cochlear implant users. ..
- CELLULAR MECHANISMS OF AUDITORY INFORMATION PROCESSINGPaul B Manis; Fiscal Year: 2010..These experiments will ultimately generate insights for alternative stimulation strategies for the hard-of-hearing, and for cochlear implant users. ..
- PROCESSING STREAMS IN EARLY VISIONPatrick Cavanagh; Fiscal Year: 2004..In these final studies I will test normal and neurological subjects and record brain activation using fMRI. ..
- Biofilm Development by Vibrio choleraePaula Watnick; Fiscal Year: 2006..As a natural inhabitant of oceans, estuaries, rivers, and lakes, V. cholerae is well adapted for survival in both fresh water and marine environments. V...