Search Results - "KLUMP, J. Val"
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Spatiotemporal variations in the abundance and composition of bulk and chromophoric dissolved organic matter in seasonally hypoxia-influenced Green Bay, Lake Michigan, USA
Published in The Science of the total environment (15-09-2016)“…Green Bay, Lake Michigan, USA, is the largest freshwater estuary in the Laurentian Great Lakes and receives disproportional terrestrial inputs as a result of a…”
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Dynamics of dissolved and particulate phosphorus influenced by seasonal hypoxia in Green Bay, Lake Michigan
Published in The Science of the total environment (15-01-2016)“…Despite major investments in point source reductions, portions of the Great Lakes, like Green Bay, remain hypereutrophic and are subject to persistent seasonal…”
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Elemental and stable isotope records of organic matter input and its fate in the Pichavaram mangrove–estuarine sediments (Tamil Nadu, India)
Published in Marine chemistry (20-09-2011)“…In order to evaluate the sources and fate of organic matter (OM) in the Pichavaram mangrove–estuarine ecosystem, C org, N tot, C/N atm, and stable isotopes (δ…”
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Sediment biomarker profiles trace organic matter input in the Pichavaram mangrove complex, southeastern India
Published in Marine chemistry (01-04-2015)“…The nature and distribution of lipid biomarkers (n-alkanes, n-alkanols, sterols and triterpenols) were investigated in five dated sediment cores from the…”
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Temporal and spatial distribution of trace metals in the Rufiji delta mangrove, Tanzania
Published in Environmental monitoring and assessment (01-06-2018)“…Spatial and temporal distribution of trace metals and their cycling is a key issue for understanding the ongoing biogeochemical processes in coastal…”
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Freshwater Suspended Sediments and Sewage Are Reservoirs for Enterotoxin-Positive Clostridium perfringens
Published in Applied and Environmental Microbiology (01-08-2010)“…The release of fecal pollution into surface waters may create environmental reservoirs of feces-derived microorganisms, including pathogens. Clostridium…”
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Chemical speciation, reactivity, and long-term burial of sedimentary phosphorus in Green Bay, a seasonally hypoxia-influenced freshwater estuary
Published in The Science of the total environment (20-10-2024)“…Sediment cores were collected along a trophic gradient in Green Bay, a seasonally hypoxia-influenced freshwater estuary in Lake Michigan, to measure various…”
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Benthic Biogeochemical Cycling, Nutrient Stoichiometry, and Carbon and Nitrogen Mass Balances in a Eutrophic Freshwater Bay
Published in Limnology and oceanography (01-05-2009)“…Green Bay, while representing only ~ 7% of the surface area and ~1.4% of the volume of Lake Michigan, contains one-third of the watershed of the lake, and…”
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Polycyclic aromatic hydrocarbon fingerprints in the Pichavaram mangrove–estuarine sediments, southeastern India
Published in Organic geochemistry (01-12-2012)“…► One of the few studies of Indian mangroves focusing on PAHs. ► Higher concentration of PAHs in mangrove sediments than estuarine sediments. ► PAH…”
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Underwater sinkhole sediments sequester Lake Huron’s carbon
Published in Biogeochemistry (01-10-2013)“…Lake Huron’s submerged sinkhole habitats are impacted by high-conductivity groundwater that allows photosynthetic cyanobacterial mats to form over thick,…”
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Major and trace element geochemistry in Zeekoevlei, South Africa: A lacustrine record of present and past processes
Published in Applied geochemistry (01-08-2008)“…This study reports a multi-parameter geochemical investigation in water and sediments of a shallow hyper-eutrophic urban freshwater coastal lake, Zeekoevlei,…”
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Elemental (C, N, H and P) and stable isotope (δ15N and δ13C) signatures in sediments from Zeekoevlei, South Africa: a record of human intervention in the lake
Published in Journal of paleolimnology (01-04-2008)“…We used elemental carbon, nitrogen, phosphorus and hydrogen ratios (C/N, N/P and H/C) with total organic carbon (TOC) and total phosphorus (TP) as well as…”
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The role of circulation and heat fluxes in the formation of stratification leading to hypoxia in Green Bay, Lake Michigan
Published in Journal of Great Lakes research (01-12-2015)“…Summertime bottom water hypoxia has been a recurring water quality issue in Green Bay for decades. Evidence suggests that the magnitude and duration of hypoxia…”
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Vertical and horizontal particle transport in the coastal waters of a large lake: An assessment by sediment trap and thorium-234 measurements
Published in Journal of geophysical research. Oceans (01-10-2013)“…The horizontal and vertical flux of particulate material in the nearshore of southern Lake Michigan (0–40 m) was estimated with the naturally occurring…”
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A hypothesis for the origin of perylene based on its low abundance in sediments of Green Bay, Wisconsin
Published in Chemical geology (30-07-2001)“…Perylene, a polycyclic aromatic hydrocarbon (PAH) that is common in sediments, is believed to originate principally from anaerobic diagenesis of organic…”
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Variations in chemical speciation and reactivity of phosphorus between suspended-particles and surface-sediment in seasonal hypoxia-influenced Green Bay
Published in Journal of Great Lakes research (01-10-2018)“…Water, suspended-particles, and surface-sediment samples were collected from Green Bay, Lake Michigan, for the measurements of phosphorus (P) species,…”
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The Green Bay saga: Environmental change, scientific investigation, and watershed management
Published in Journal of Great Lakes research (01-10-2018)“…The Green Bay watershed, draining a total area of approximately 40,468 km2, comprises about a third of the Lake Michigan drainage. In the early years, fur…”
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Spatial analysis of toxic or otherwise bioactive cyanobacterial peptides in Green Bay, Lake Michigan
Published in Journal of Great Lakes research (01-10-2018)“…Cyanobacterial harmful algal blooms (cyanoHABs) are a growing problem in freshwater systems worldwide. CyanoHABs are well documented in Green Bay, Lake…”
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Evidence of persistent, recurring summertime hypoxia in Green Bay, Lake Michigan
Published in Journal of Great Lakes research (01-10-2018)“…Six years (2009–2015) of temperature and dissolved oxygen profile data show hypoxic conditions are common in the bottom waters of southern Green Bay, Lake…”
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Modeling the fecal coliform footprint in a Lake Michigan urban coastal area
Published in Environmental modelling & software : with environment data news (01-09-2017)“…The fecal coliform footprint in a Lake Michigan urban coastal area was studied using field sampling and modeling. Testing for fecal indicator bacteria at large…”
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