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Direct fishing and eDNA metabarcoding for biomonitoring during a 3-year survey significantly improves number of fish detected around a South East Asian reservoir

Biodiversity has to be accurately evaluated to assess more precisely possible dam effects on fish populations, in particular on the most biodiverse rivers such as the Mekong River. To improve tools ... sites used in the study (dots). The dots are colored according to their status: affected, slightly affected or not affected by the dam in terms of water quality features, backwaters, reservoir and

Trace metal distribution in muddy-patch sediments from the northern Portuguese Shelf

dissolved oxygen being pumped into the sediment and the formation of several oxic/anoxic interfaces. At these depths trace metals are mobilized in the oxidized layers, diffused a few millimetres towards the ... concentrations in irrigated sediment depths. Key words: trace metals, sulphides, early diagenesis, northern Portuguese Shelf.   Resumen Se muestrearon tres testigos de sedimento en manchas de lodo

New Potentials in the Extraction of Trace Metal Using Natural Deep Eutectic Solvents (NADES)

that extraction by using the NADES has been successfully applied for determination of metals and metal complexes in young barley. ... metals extraction. Effect of Solvent Type—SEC-ICP-MS Analysis Since the main aim of the study was to find the most effective extraction conditions for analysis of metal complexes in plant (young barley

Extração seletiva de metais pesados em sedimentos de fundo do Rio Tietê, São Paulo

Sediment samples from Tietê river were submitted to chemical and sequential extractions of heavy metals (Cd, Cr, Cu, Ni, Pb and Zn). It was followed a single extraction by using 0.1 mol L-1 ... residual fractions. High concentrations of heavy metals were determined at Pirapora reservoir, which is closer to the Metropolitan Area of São Paulo while for Barra Bonita reservoir, the results showed low

Variabilidad geográfica de la concentración de Hg, Co, Fe y Ni en mejillones Mytilus californianus (Conrad, 1837) de la costa de Baja California

The spatial distribution of the Hg, Fe, Co, and Ni pollution was determined in the Northwest coast of Baja California using the mussel Mytilus californianus as biomonitor. Samplings of mussels were ... showed lower concentrations. No significant correlations were observed among metals and the biological variables of the analyzed mussels. The cluster analysis among metals, grouped Hg with elements (Ag and

Discovering mosses and mussels for natural inspiration

the Environment at SUNY/ESF. Abbie Gascho Landis: Immersion: The Science and Mystery of Freshwater Mussels Wash DC, Covelo and London: Island Press, 2017 Abbie Landis is a writer, veterinarian ... and naturalist and was a finalist for the Constance Rooke Creative Nonfiction Award. Much of her experience with freshwater mussels is drawn for biological fieldwork with her husband. Both writers

Bioleaching of trace elements and rare earth elements from coal fly ash

to the highest mineral loss and extracting efficiencies of trace elements and REEs among the three strains. The highest mineral loss observed from using the supernatant of this yeast strain was 59.7 ... in new window Fig. 5 Leaching efficiency of C. curvatus. a Trace metals; b REEs Comparing leaching results from using the supernatant derived from the three microbial strains, the exaction

Desenvolvimento e aplicação de sistema passivo de coleta de poluentes atmosféricos para monitoramento de Cd, Cr, Pb, Cu, Fe, Mn, Zn e particulados totais

The objective of this study was to assess a new monitoring technique of particulate and trace metals in the atmosphere via the use of a passive sampler of air pollutants in the city of Goiânia. The ... ; 17.8; 6.7; 1.9; 0.8; 0.2 μg/m2/day, respectively. Higher Pb and Cr concentrations were obtained in areas with intense traffic. This study revealed that it is possible to monitor trace metals with passive

Optimized production profile using a coupled reservoir-network model

methodology ensures maximum oil production at each time step of the reservoir simulator while honoring all operational constraints of the system. The proposed method is applied to a small North Sea offshore ... the result of an iterative process between several disciplines within the company. Initial profiles are generated using reservoir models and taking into consideration factors like drainage area

Cadmium and Lead content in Liver and Kidney tissues of Wild Turkey Vulture Cathartes aura (Linneo, 1758) from Chañaral, Atacama desert, Chile

the effects on terrestrial biota, we analyzed the concentration of cadmium and lead in tissues of Turkey Vulture (Cathartes aura). The results indicate that accumulation of cadmium in kidney was 10.31 ... . Concentrations of heavy metals and morphometric traits in Turkey Vulture analyzed. ID: Number of each Individual, CdL: Concentration of Cadmium in Liver, CdK: Concentration of Cadmium in Kidney, PbL: Concentration

Recovery of metals from waste nickel-metal hydride batteries using multifunctional Diphonix resin

). This type of ion exchanger can be considered as the multifunctional material having great affinity to many metal ions. Using Diphonix resin adsorption process was carried out for La(III) and Ni(II) ions ... antimony and bismuth. Hydrometallurgy 98, 122–127 (2009)CrossRefGoogle Scholar Meshram, P., Pandey, B.D., Mankhand, T.R.: Leaching of base metals from spent Ni-metal hydride batteries with emphasis on

Bacterial biofilms with emphasis on coagulase-negative staphylococci

is common in immunodepressed persons, in patients with cancer, in adult and neonatal intensive care units (ICU) and in patients using catheters or other prosthetic devices. The pathogenicity of CNS ... the present review was to describe basic and genetic aspects of biofilm formation and methods for its detection, with emphasis on biofilm creation by CNS and its relationship with diseases caused by

Estimations and changes of the dominant discharge in Three Gorges Reservoir channel

Dominant discharge is an important parameter reflecting the water inflow process and river channel shape. Since the impoundment and implementation of the Three Gorges Reservoir (TGR), the bed-forming ... of the dam, the dominant discharge in the variable backwater area remained basically unchanged, while increasing in the perennial backwater area. (3) The dominant discharge in the reservoir area is

Structural changes of the phytoplankton and epiphyton in an urban hypereutrophic reservoir

Reservoir, Brazil). Methods We collected water sample and phytoplankton in different depths at two sites (dam and near tributary input) in summer and winter 2010. Epiphyton on Salvinia spp. was ... reservoir during the study period (Zmax: maximum depth; S: subsurface, M: middle, B: bottom; DIN: dissolved inorganic nitrogen = N-NO2 + N-NO3 + N-NH4).  Summer Winter Site Dam TI Dam

Reproductive activity and recruitment of the yellow-mandi Pimelodus maculatus (Teleostei: Pimelodidae) in the Igarapava Reservoir, Grande River, Southeast Brazil

The catfish yellow-mandi, Pimelodus maculatus, is a valuable sporting and commercial fish of inland waters of Southeast Brazil including Igarapava Reservoir. It is a short-distance migrant that needs ... December, 2002 and January and February, 2003, using gill nets of 8 cm to 20 cm stretch–mesh. The nets were placed in the middle and distal third of the reservoir in regard to the dam near the mouth of

Correction: Correction: Wild-Type Mouse Models to Screen Antisense Oligonucleotides for Exon-Skipping Efficacy in Duchenne Muscular Dystrophy

Models to Screen OPEN ACCESS There is an error in the Correction published on November 15, 2018. In the last sentence of the caption for S2 Fig, ?mdx? should be ?C57BL6.? The publisher apologizes for the

Plantas aquáticas e nível de infestação das espécies presentes no reservatório de Barra Bonita, no rio Tietê

plants and the infestation levels of each species in the Barra Bonita reservoir. All the aquatic vegetation focuses in the dam (335 points) were evaluated and marked with a GPS apparel. The plants were ... Barra Bonita reservoir in the Tietê river     Carvalho, F.T.I; Galo, M.L.B.T.II; Velini, E.D.III; Martins, D.III IProf. Dr., FEIS-UNESP, Departamento de Biologia e Zootecnia IIProfa. Dra., FCT

Prediction of Dam Reservoir Volume Fluctuations Using Adaptive Neuro Fuzzy Approach

, navigation in the dam reservoirs, water quality management in reservoir and the safety of dam. In this study, reservoir volume variations were estimated using average monthly precipitation, monthly total ... planned and management. Dam reservoir water volume predicting for different time intervals using the records of past time series is an crucial issue in water resources planning and management. Since

A case-control study of trace-element status and lung cancer in Appalachian Kentucky

hypothesized that a population-based study would reveal higher trace element concentrations in App KY individuals with cancer compared to controls. Using toenail and drinking water trace element concentrations ... trace metal grade acetone (Fluka 69508) and ultrasonicated for 30 min in a bath-type ultrasonic cleaner to remove organic contaminants and nail polishes. If any visible polish remained for a sample the

Metabolism of pectenotoxins in brown crabs Cancer pagurus fed blue mussels Mytilus edulis

Marine Biological Laboratory in Sweden in September of 2006. Brown crabs, both male and female with all body parts intact, were collected at 15 to 25 m depth of the coast of Tjärnö. The toxic blue mussels ... cages in tanks with continuous pumping of deep sea water at temperatures ranging from 10 to 12º C during the experiment. Brown crabs were fed toxic blue mussels for 21 days and depurated for 42 days