The National Park Service continues its efforts to prevent the spread of aquatic invasive species. Invasive species such as the zebra mussel have caused extensive damage to natural resources and cost millions of dollars in eradication and control efforts. Ballast water discharges from ships (water used for ship stability) is a primary pathway for introduction of invasive species. The NPS and its partners have conducted significant research into ballast water treatment technology, most recently this summer at Isle Royale National Park.
Results are in from the summer testing of two freshwater ballast treatment systems on the NPS ship Ranger III. The NPS tested a manually operated rapid response treatment process that used chlorine and a neutralizer and a fully automated permanent treatment system using filtration and ultraviolet (UV) technology. The shipboard status tests were conducted in September 2014 and the final report was recently released. Both systems passed United States federal and international standards for two out of three requirements: discharge of living zooplankton and indicator bacteria.
The systems did not meet the standards for phytoplankton, which remain some of the toughest organisms to kill. Since the numbers of live phytoplankton collected exceeded the standard, the test facility conducted a viability analysis. After giving the organisms optimum conditions for growth and reproduction it was determined they were not viable (not capable of reproduction) after undergoing either of the treatments.
More information on results and criteria will be posted on the Isle Royale website, www.nps.gov/isro.
Don't forget! We are open until 7 pm on Friday, December 19th!
Join us for Christmas Cheer, Wine and Gift-Wrapping :-D
See you Friday!
CONTACT: Sivertson Gallery
DATE: 12/17/2014 02:31pm
Attention college students and those back home for Christmas Break - Lutsen Mountains has temporary positions available through the holiday season (now through January 11). We are looking for lift operators, rental shop staff, cashiers, etc. Have fun, make some extra money, and earn skiing privelages while you work!
Please contact Kathy Buckman if interested.
CONTACT: Melissa Dressely
DATE: 12/17/2014 01:39pm
We are looking for a second Graphic Designer. 3+ years of experience, Part-time to start. Must be proficient with Adobe Creative Suite. Should have knowledge of web design and printing. Able to meet deadlines and manage multiple projects. Work well with others in a fast-paced work environment. Send resumes to Northern Wilds Media, PO Box 26, Grand Marais, MN 55606 or by email to email@example.com.
DATE: 12/17/2014 11:22am
We have a Sharp 32 inch TV to give away. It works great, but we are upgrading. Is not a flat screen. Call to arrange to pick it up. 387-9008
CONTACT: Anne Hegg
DATE: 12/17/2014 10:14am
We have some new appetizers on the menu. Come on in and try us out!
CONTACT: Karli Wiinanen
DATE: 12/17/2014 09:56am