YSI 5908 DO Cap Membrane Kit
Features
- For use with sampling applications where DO speed of response is of most concern.
- Can be used with the YSI 556, 550A, DO200 & Pro Series meters
- Provides the fastest response time of 9 seconds and a flow dependence of about 25%
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 605306 | 5908 PE yellow 1.25 mil cap membrane kit, 550A, DO200, 559 & 2003 polarographic sensors | $58.90 | In Stock | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 052380 | 5238 probe reconditioning kit, for use with 5239, 85, 559, 2002 & 2003 DO probes | $31.83 | In Stock | ||
- (6) 1.25 mil yellow cap membranes
- (1) Bottle of electrolyte solution
- (1) Sanding disk
- (1) Instruction sheet
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Wisconsin watershed program involves high schools to collect, share data
A group of high schoolers in the Green Bay, Wisc. area are learning about careers in environmental science thanks to the Lower Fox River Watershed Monitoring Program . The program, supported by the University of Wisconsin, has involved more than 700 students since its 2003 launch. “We have almost ten years of data,” said Annette Pelegrin, program coordinator. “It began in 2003 with five watersheds. We’ve trained teachers and schools that are interested and showed them how to measure different parameters.” Those include flow, temperature, transparency and turbidity of the program’s streams. YSI 55 meters are used to measure dissolved oxygen and levels of phosphorus, ammonia and nitrogen are checked with a Hach colorimeter.
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Chloride Contamination Threatens Thousands of Northeast & Midwest Lakes
Thousands of lakes in the northeastern United States are at risk of chloride contamination. In a 17-state area from Minnesota to Missouri to Maine, elevated chloride levels in some of the region’s nearly 50,000 lakes are driven largely by landscape features that are cleared of snow and ice by road salt in the winter. “The biggest driver of increasing chloride concentrations in these lakes was road density and development. The more developed a watershed, the more likely you are to have roads and parking lots,” said Hilary Dugan, an assistant professor in the Center for Limnology at University of Wisconsin—Madison. Dugan is the lead author on a study examining the issue recently published in Environmental Science and Technology .
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Is eradicating Great Lakes sea lamprey an “impossible dream?” Researchers say no
The sea lamprey’s days in the Great Lakes could be numbered. That’s according to one researcher who took one of the first scientific looks at the possibility of sea lamprey eradication in the Great Lakes. So, can you remove enough sea lamprey to make them disappear? “Well the answer is we already have,” said Michael Jones, emeritus professor of fisheries and wildlife at Michigan State University. “Then there’s the obvious question: Why are they still here?” While multiple gaps in current management techniques, like sea lamprey poisons called lampricides, could account for sea lamprey’s persistence in the Great Lakes, new technology could help sea lamprey managers eliminate inaccessible populations.
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