Filters: Tags: sediment analysis (X)248 results (10ms)
Seasonal dynamics and storage of particulate organic matter within bed sediment of three streams with contrasted riparian vegetation and morphology
Lake Baikal record of continental climate response to orbital insolation during the past 5 million years
Cyst and radionucleotide evidence for the recent introduction of the toxic dinoflagellate Gymnodinium catenatum into Tasmanian waters
Physical, chemical and microbial community characteristics of lakes of the Larsemann Hills, continental Antarctica
Particulate matter filtration and seasonal nutient dynamics in permeable carbonate and silicate sands of the Gulf of Aqaba, Red Sea
Accumulation of Heavy Metals by Individually Analyzed Bacterial Cells and Associated Nonliving Material in Polluted Lake Sediments
Shoreline ecology program for Prince William Sound, Alaska, following the Exxon Valdez oil spill: Part 1 -- study design and methods
Nutrient content of macroalgae with differing morphologies may indicate sources of nutrients for tropical marine systems.
Latitudinal delta super(13)C sub(org) variations in sinking matter and sediments from the South Atlantic: Effects of anthropogenic CO sub(2) and implications for paleo-PCO sub(2) reconstructions
Increased dissolved oxygen in Pacific intermediate waters due to lower rates of carbon oxidation in sediments
14 000-year record of paleoenvironmental change in the western basin of China's third largest lake, Lake Taihu
Relationship between soft bottom macrofauna and polycyclic aromatic hydrocarbons (PAH) from smelter discharge in Norwegian fjords and coastal waters
This Benthic Invertebrate Community Analysis dataset, a conceptual subgroup of the Lake Erie Ecological Investigations (LEEI) dataset, focuses on the benthic invertebrates sampled at Areas of Concern (AOCs) on Lake Erie. Per the Quality Assurance Project Plan (QAPP), the invertebrate samples were taken from sediments remaining from the sediment analysis. Identification of the invertebrates was completed by the same invertebrate taxonomist for both the 1998-2000 evaluation and 1986-87 historical evaluation (Smith et al. 1994) for increased consistency. Oligochaetes were identified to species if possible, chironomids were identified to genus, as adult specimens are needed for specific identification, and other taxa...
During the winter of 2016 and the summer of 2018, the U.S. Geological Survey, Lower Mississippi-Gulf Water Science Center collected sediment cores for grain-size analysis in Mississippi and Arkansas. In a farm field adjacent to the Tallahatchie River near Money, Mississippi, 13 continuous sections of approximately 5-cm (2-in) diameter by approximately 1.5-m (5-ft) long sediment cores were extracted to better understand the sediment within the Mississippi River Valley alluvial aquifer. These data were used to support ongoing aquifer testing activities by the U.S. Department of Agriculture’s Agricultural Research Service. Lake Poinsett Dam is an earthen embankment dam located near Harrisburg, AR. In May of 2018, the...
Matrix inhibition PCR and Microtox® 81.9% screening assay analytical results for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015
Coastal communities are uniquely vulnerable to sea-level rise (SLR) and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in coming years. The U.S. Geological Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health (EH) stressors. These data document toxicity measured by reduction of the light emission of Aliivibrio (formerly Photobacterium) fischeri and the inhibition of polymerase chain reactions caused by environmental...