HOME >> BIOLOGY >> NEWS
Threatened juvenile salmon get scientific assistance

Research has found that thousands of miles of essential juvenile salmon habitat are blocked by tens of thousands of culverts that lay beneath Pacific Northwest roadways. Many of these culverts - that for years have successfully channeled water under roadbeds - are acting as barriers to young salmon preventing them the upstream passage required for growth and development.

To find a more 'fish friendly' design for future stream crossings and for the thousands of retrofits expected to be completed in coming years, the Washington State Department of Transportation (WSDOT), representing West Coast transportation agencies, has hired Pacific Northwest National Laboratory (PNNL), to design and install a culvert test bed in southwestern Washington. PNNL, located in Richland, Wash., is operated by Battelle for the U.S. Department of Energy.

"We're blending the expertise of hydraulics engineers, mechanical engineers, statisticians, fish biologists and fish behavior specialists to find a solution to a problem that faces the entire Northwest, and has implications for culverts throughout the country," said Walter Pearson, PNNL fish behaviorist and program manager.

The full-scale, one-of-a-kind culvert test bed system is located at the Washington Department of Fish and Wildlife Skookumchuck Hatchery near Tenino, Wash.

The system allows scientists to adjust and measure the hydraulic conditions water velocity, turbulence and depth of various culvert designs being evaluated. By assessing different slopes and flow regimes, scientists can determine how these conditions influence fish behavior and the ability of the fish to pass through a variety of culvert designs being considered as retrofits.

"There are hundreds of possibilities for bed configurations," Pearson said. "A particular design may stop passing fish at some flow rate or some slope and that's what we'll be looking for. This will help us design stream crossings that accommoda
'"/>

Contact: Geoffrey Harvey
geoffrey.harvey@pnl.gov
509-372-6083
DOE/Pacific Northwest National Laboratory
18-Aug-2003


Page: 1 2 3

Related biology news :

1. Threatened Galapagos plants are focus of biologists field guide
2. Threatened marbled murrelet first to be hatched in captivity
3. Turtle Population Apparently Threatened By Urban Sprawl, Traffic
4. Gene mutation found for a form of juvenile-onset motor neuron disease
5. Pittsburgh researchers discover genetic link between two juvenile onset renal diseases
6. Study finds autoimmune link in juvenile Batten disease
7. Study finds rare juvenile turtles
8. PNNL lands $10.3 million NIH biodefense contract to unlock proteomes of salmonella and pox
9. Flame retardant levels much higher in farmed salmon
10. Common worm provides insights into salmonella virulence
11. Policy review in Science calls for Bush Administration to protect wild salmon

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/6/2017)... -- RAM Group , Singaporean based technology ... biometric authentication based on a novel  quantum-state ... perform biometric authentication. These new sensors are based on a ... Group and its partners. This sensor will have widespread ... security. Ram Group is a next generation sensor ...
(Date:4/18/2017)... 18, 2017  Socionext Inc., a global expert in SoC-based imaging ... server, the M820, which features the company,s hybrid codec technology. A ... Tera Probe, Inc., will be showcased during the upcoming Medtec Japan ... at the Las Vegas Convention Center April ... Click here for ...
(Date:4/13/2017)... According to a new market research report "Consumer ... Administration, and Authorization), Service, Authentication Type, Deployment Mode, Vertical, and Region - ... to grow from USD 14.30 Billion in 2017 to USD 31.75 Billion ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... , ... October 11, 2017 , ... ... announced today it will be hosting a Webinar titled, “Pathology is going digital. ... Associates , on digital pathology adoption best practices and how Proscia improves lab ...
(Date:10/11/2017)... ... ... Disappearing forests and increased emissions are the main causes of the evolving ... those living in larger cities are affected by air pollution related diseases. , That ... countries globally - decided to take action. , “I knew I had to take ...
(Date:10/10/2017)... , ... October 10, 2017 , ... San Diego-based team ... its corporate rebranding initiative announced today. The bold new look is part of ... the company moves into a significant growth period. , It will also expand its ...
(Date:10/10/2017)... ... 10, 2017 , ... Dr. Bob Harman, founder and CEO of VetStem ... The event entitled “Stem Cells and Their Regenerative Powers,” was held ... Harman, DVM, MPVM was joined by two human doctors: Peter B. Hanson, M.D., Chief ...
Breaking Biology Technology:
Cached News: