Navigation Links
New ballast treatment could protect Great Lakes fish
Date:6/4/2008

A Michigan Technological University professor has developed a new water treatment that could help keep a deadly fish disease out of Lake Superior.

David Hand, a professor of civil and environmental engineering at Michigan Tech, has devised a simple way to treat ballast water in vessels ranging from pleasure craft to ore boats. His method is designed to kill the virus that causes viral hemorrhagic septicemia (VHS), an often-fatal disease that has been attacking fish populations in the lower Great Lakes.

Hand's treatment is simple.

The ballast water is disinfected with sodium hypochloriteordinary household bleach. Then it is treated with ascorbic acid, or vitamin C, which neutralizes the bleach before the water is released into the lake.

With good initial results, Hand has tested his method on the Ranger III, a National Park Service vessel that shuttles visitors and staff between the mainland and Isle Royale National Park.

In the next few weeks, the Great Ships Initiative will conduct independent lab tests on his system at the University of WisconsinSuperior to help determine if it is safe, effective and inexpensive. Other partners in the effort are the National Park Service and the US Fish and Wildlife Service.

"VHS has had a devastating effect on the musky population in Lake St. Clair and affects 23 species of game fish," said Phyllis Green, superintendent of Isle Royale National Park and the midwest coordinator of the park service's VHS Prevention Team. "It's important that we keep it out of the Lake Superior basin or at least slow its spread. Our aim is to find a low-tech, low-cost, interim solution that can stop the spread of VHS."

Since 2003, VHS it has caused massive dieoffs of fish species ranging from walleyes to salmon in all of the Great Lakes except Superior. Infected fish die from bleeding of their internal organs and often have open sores and bruised-looking, reddish tints on their skin.

As bad as it is, VHS is only part of the problem Hand wants to address. Exotic species have been hitchhiking throughout the Great Lakes via ballast tanks since 1959, when the St. Lawrence Seaway opened. And, as global trade increases, the problem will only get worse.

"Ships unload their ballast water from all over the world, and with it all kinds of exotic, invasive species, from viruses and bacteria to the zebra mussel," said Hand.

It's unfair to point the finger only at ocean-going ships, says Hand, a devoted angler and boat owner himself. All boaters should sterilize their bilge, ballast and livewell water.

"Not only do we need to prevent the salties from bringing in new viruses, we also need the lake carriers from the lower Great Lakes to treat their ballast, because the VHS virus is already in Lakes Huron, Michigan and Erie, and we don't want it in Superior," he said. "We really need something for all ships, as well as pleasure boats."

"We all need to protect the resource," he said.

If tests show that his system is as safe and effective as he believes, Hand hopes to map a strategy to implement its use throughout the Great Lakes.


'/>"/>

Contact: Jennifer Donovan
jdonovan@mtu.edu
906-487-4521
Michigan Technological University
Source:Eurekalert

Related biology news :

1. U-M ballast-free ship could cut costs while blocking aquatic invaders
2. Quest for better treatment for effects of menopause
3. Sugar linkage could lead to better treatment for autoimmune diseases
4. Glypican-3 gene function in regulating body size helps inform novel cancer treatments
5. Early treatment of stomach infection may prevent cancer
6. New surgery improves head and neck cancer treatment
7. Hyperviscous fluids: Better treatment for severe blood loss
8. Pregnancy is possible after cancer treatment
9. Three Dimensional Visualization of Right Ventricle Provides Important Information for Treatment of Patients with Tetralogy of Fallot, According to a Study in The American Journal of Cardiology
10. Research identifies first method for testing, assessing drug treatments for Chagas disease
11. Pregnant patients lose out in breast cancer treatment; a new approach is needed
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/26/2016)... BANGALORE, India and LONDON ... Infosys Finacle, part of EdgeVerve Systems, a ... ), and Onegini today announced a partnership to ... banking solutions.      (Logo: http://photos.prnewswire.com/prnh/20151104/283829LOGO ... banks to provide their customers enhanced security to ...
(Date:4/15/2016)... 2016  A new partnership announced today will ... decisions in a fraction of the time it ... high-value life insurance policies to consumers without requiring ... Force Diagnostics, rapid testing (A1C, Cotinine and HIV) ... pressure, weight, pulse, BMI, and activity data) available ...
(Date:4/13/2016)... 13, 2016  IMPOWER physicians supporting Medicaid patients in ... new clinical standard in telehealth thanks to a new ... higi platform, IMPOWER patients can routinely track key health ... mass index, and, when they opt in, share them ... to a local retail location at no cost. By ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Houston ... with the Cy-Fair Sports Association to serve as ... the agreement, Houston Methodist Willowbrook will provide sponsorship ... and connectivity with association coaches, volunteers, athletes and ... with the Cy-Fair Sports Association and to bring ...
(Date:6/23/2016)... 2016  The Biodesign Challenge (BDC), a university competition ... harness living systems and biotechnology, announced its winning teams ... New York City . The ... projects at MoMA,s Celeste Bartos Theater during the daylong ... senior curator of architecture and design, and Suzanne ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... STACS DNA ... Technical Leader at the Arkansas State Crime Laboratory, has joined STACS DNA as a ... STACS DNA team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In further ...
(Date:6/23/2016)... 23, 2016  Blueprint Bio, a company dedicated to ... medical community, has closed its Series A funding round, ... "We have received a commitment from Forentis ... need to meet our current goals," stated Matthew ... runway to complete validation on the current projects in ...
Breaking Biology Technology: