Navigation Links
Great lakes waterfowl die-offs: Finding the source
Date:11/24/2013

WASHINGTON D.C. Nov. 24, 2013 -- A deadly menace stalks the loons, gulls and other water birds of the Great Lakes region: Type E botulism, a neuromuscular disease caused when birds eat fish infected with toxin-producing bacteria. Cases of the disease are on the rise, killing approximately 10,000 more waterfowl in 2007 than when it was first reported in 1963.

To understand die-off origin and distribution, ocean engineers from the Florida Atlantic University (FAU) Institute for Ocean Systems Engineering in Dania Beach, Florida are using their expertise in experimental hydrodynamics. They have teamed with the U.S. Geological Survey to help develop a novel way of tracking waterfowl carcasses to determine the source of lethal outbreaks that infect fish eaten by waterbirds.

Monitoring the drift of waterbird carcasses associated with marine oil spills is another potential application. At the annual meeting of the American Physical Society's Division of Fluid Dynamics, held Nov. 24 26 in Pittsburgh, Pa., the team will present experimental measurements conducted to support the development of tracking software that will better determine the origin of waterbird die-offs.

The team performed towing tank experiments on submerging bird carcasses to determine the relevant drag coefficients. Together with wind and current data, these coefficients can be used in probabilistic source tracking simulations to calculate waterbird drift velocity and direction in order to reconstruct the likely routes that bird bodies may have traveled after a die-off.

Ultimately, this information will be compared to waterbird distribution and abundance revealed through aerial surveys to identify locations where waterbirds are likely exposed to botulinum toxin, explained Karl von Ellenrieder of FAU.

"Using the submerged frontal area of an ellipse, together with the frontal area of any submerged portions of the bird's head and neck gives good similarity across the range of speeds and submergence levels tested," von Ellenrieder said. "This is the first effort we are aware of to obtain estimates of force parameters operating on drifting waterbirds for incorporation into a current and waved-based tracking model."


'/>"/>

Contact: Jason Socrates Bardi
dfdmedia@aps.org
240-535-4954
American Physical Society
Source:Eurekalert  

Related biology news :

1. Nearby chimpanzee populations show much greater genetic diversity than distant human populations
2. WHOI researchers, collaborators receive $1.4 million grant to study life in oceans greatest depths
3. Is rainfall a greater threat to Chinas agriculture than warming?
4. Research4Life greatly expands peer-reviewed research available to developing world
5. Mercury rising: Greater L.A. to heat up an average 4 to 5 degrees by mid-century
6. Smallest and largest fetuses at greater risk of being stillborn, research finds
7. Newly discovered dinosaur implies greater prevalence of feathers
8. Obesity plus low vitamin D may add up to a greater risk of diabetes
9. US-born Latinas at great risk of having babies with retinoblastoma
10. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
11. Study shows hope of greater global food output, less environmental impact of agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Great lakes waterfowl die-offs: Finding the source
(Date:3/30/2017)... March 30, 2017 The research team of ... three-dimensional (3D) fingerprint identification by adopting ground breaking 3D fingerprint minutiae ... realm of speed and accuracy for use in identification, crime investigation, ... cost. ... A research ...
(Date:3/29/2017)... , March 29, 2017  higi, the health IT ... North America , today announced a ... the acquisition of EveryMove. The new investment and acquisition ... of tools to transform population health activities through the ... data. higi collects and secures data today ...
(Date:3/27/2017)... N.Y. , March 27, 2017  Catholic ... Information and Management Systems Society (HIMSS) Analytics for ... EMR Adoption Model sm . In addition, CHS ... of U.S. hospitals using an electronic medical record ... for its high level of EMR usage in ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... ... September 20, 2017 , ... ... Huron Digital Pathology , a provider of whole slide imaging solutions, are ... conference . The workshop, entitled “Successfully Deploying a Best-in-Class Strategy for Digital Pathology,” ...
(Date:9/20/2017)... ... September 20, 2017 , ... Foresight Institute, a leading think ... technologies, announced the winners for the 2017 Foresight Institute Feynman Prizes.These are given ... manufacturing. , Established in 1993 and named in honor of pioneer physicist Richard ...
(Date:9/19/2017)... ... September 19, 2017 , ... Participants of this educational ... fume hood. Along with the advantages and disadvantages of ductless, filtered fume hoods, ... in the laboratory. , Attendees will learn from an industry expert about the ...
(Date:9/19/2017)... ... September 19, 2017 , ... The new and improved Oakton® pocket testers, ... even stand upright with a new cap design that is versatile, functional and leakproof. ... who need to test water quality. , The Oakton pocket testers have many user-friendly ...
Breaking Biology Technology: