Wetland restoration in Oregon : issues, options, and recommendations

"This report is organized as follows. First, the objectives and methods used are outlined. Background information follows, including what is known about the extent, past alterations, and condition of wetlands in Oregon today; the status of wetland restoration in the U.S. and in Oregon; definitions of important terms; the functions of wetlands and their importance in restoration planning and priority setting; and a general model for the role of restoration in overall wetlands management. Next is the slate of ecological, socioeconomic, and institutional principles that should be followed throughout policy formulation. This is followed by the heart of the report: a three-tiered, function-based framework for wetland restoration and priority setting in Oregon. Finally, responsibilities and methods for implementing the planning framework are outlined, primarily from an institutional perspective. Several appendices provide additional background and supporting information."--p.

Passive Polymer Application for Turbidity Reduction

2012 S.C. Water Resources Conference - Exploring Opportunities for Collaborative Water Research, Policy and Managemen

Bacteria in Construction Site Sediment Basins

2010 S.C. Water Resources Conference - Science and Policy Challenges for a Sustainable Futur

Recommendations for a Nonregulatory Wetland

2 p. Review produced for HC 441: Science Colloquium: Willamette River Environmental Health, Robert D. Clark Honors College, University of Oregon, Spring term, 2004.Print copies of the reviewed report are available from several locations within the UO Libraries, under the call number: QH76.5.O7 G66 199

In Situ Water Quality Measurements Using an Unmanned Aerial Vehicle (UAV) System

An unmanned aerial vehicle-assisted water quality measurement system (UAMS) was developed for in situ surface water quality measurement. A custom-built hexacopter was equipped with an open-source electronic sensors platform to measure the temperature, electrical conductivity (EC), dissolved oxygen (DO), and pH of water. Electronic components of the system were coated with a water-resistant film, and the hexacopter was assembled with flotation equipment. The measurements were made at thirteen sampling waypoints within a 1.1 ha agricultural pond. Measurements made by an open-source multiprobe meter (OSMM) attached to the unmanned aerial vehicle (UAV) were compared to the measurements made by a commercial multiprobe meter (CMM). Percent differences between the OSMM and CMM measurements for DO, EC, pH, and temperature were 2.1 %, 3.43 %, 3.76 %, and <1.0 %, respectively. The collected water quality data was used to interpret the spatial distribution of measurements in the pond. The UAMS successfully made semiautonomous in situ water quality measurements from predetermined waypoints. Water quality maps showed homogeneous distribution of measured constituents across the pond. The concept presented in this paper can be applied to the monitoring of water quality in larger surface waterbodies

Autonomous In Situ Measurements of Noncontaminant Water Quality Indicators and Sample Collection with a UAV

The objective of this research was to conduct in situ measurements of electrical conductivity (EC), pH, dissolved oxygen (DO), and temperature, and collect water samples simultaneously at different depths using an unmanned aerial vehicle (UAV). The UAV system consists of a hexacopter, water sampling cartridges (WSC), and a sensor node. Payload capacity and endurance of the UAV were determined using an indoor test station. The UAV was able to produce 106 N of thrust for 10 min with 6.3 kg of total takeoff weight. The thrust-to-weight ratio of the UAV was 2.5 at 50% throttle. The decision for activating the water sampling cartridges and sensor node was made autonomously from an onboard microcontroller. System functions were verified at 0.5 m and 3.0 m depths in 6 locations over a 1.1 ha agricultural pond. Average measurements of EC, pH, DO, and temperature at 0.5 m depth were 42 µS/cm, 5.6, 8.2 mg/L, and 31 °C, while the measurements at 3 m depth were 80 µS/cm, 5.3, 5.34 mg/L, and 24 °C, respectively. The UAV-assisted autonomous water sampling system (UASS) successfully activated the WSC at each sampling location. The UASS would reduce the duration of water quality assessment and help practitioners and researchers to conduct observations with lower operational costs. The developed system would be useful for sampling and monitoring of water reservoirs, lakes, rivers, and ponds periodically or after natural disasters

Observations on Effluent Limits for Stormwater Runoff from Construction

2012 S.C. Water Resources Conference - Exploring Opportunities for Collaborative Water Research, Policy and Managemen

Introduction to Harmful Algal Blooms (HABs) in Freshwater Systems

Harmful Algal Blooms (HABs) are detrimental to the ecosystem through their biomass and toxin production. HABs monitoring is complicated by existence of diverse species of algae causing blooms and their varying enabling conditions. This article gives an overview of the causes and effects of HABs in South Carolina as well as detection methods adopted by researchers and monitoring approaches set aside by South Carolina Department of Health and Environmental Control

ErbB2 promotes endothelial phenotype of human left ventricular epicardial highly proliferative cells (eHiPC).

The adult human heart contains a subpopulation of highly proliferative cells. The role of ErbB receptors in these cells has not been studied. From human left ventricular (LV) epicardial biopsies, we isolated highly proliferative cells (eHiPC) to characterize the cell surface expression and function of ErbB receptors in the regulation of cell proliferation and phenotype. We found that human LV eHiPC express all four ErbB receptor subtypes. However, the expression of ErbB receptors varied widely among eHiPC isolated from different subjects. eHiPC with higher cell surface expression of ErbB2 reproduced the phenotype of endothelial cells and were characterized by endothelial cell-like functional properties. We also found that EGF/ErbB1 induces VEGFR2 expression, while ligands for both ErbB1 and ErbB3/4 induce expression of Tie2. The number of CD3