Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Salmon forced to “sprint” less likely to survive migration

25.08.2014

Sockeye salmon that sprint to spawning grounds through fast-moving waters may be at risk, suggests new research by University of British Columbia scientists.

When salmon encounter turbulent, fast-moving water—such as rapids or areas downstream of dams—they must move upstream using a behavior known as “burst swimming” that is similar to sprinting for humans.


“Days after sockeye passed through extremely fast-moving water, we started to see fish dying only a short distance from their spawning grounds,” said Nicholas Burnett, a research biologist at UBC and lead author of the study, published today in Physiology and Biochemical Zoology.

“We now understand how this important but energetically costly swimming behavior can impact the survival of sockeye during their upstream migration,” said Burnett, who worked on this study as part of his master’s research with UBC Professor Scott Hinch and Carleton University Professor Steven Cooke. 

“Our work demonstrates how important it is for salmon to have easy access around obstacles in the river.”

BACKGROUND

Researchers tagged fish with accelerometer transmitters, a new tracking technology that records how fast fish swim and how much oxygen they consume.

Tagged fish were released in the high flows downstream of a dam in southwestern British Columbia and tracked as they navigated through a fishway and two lakes to their spawning grounds. 

N. J. Burnett, S. G. Hinch, D. C. Braun, M. T. Casselman, C. T. Middleton, S. M. Wilson, and S. J. Cooke, “Burst Swimming in Areas of High Flow: Delayed Consequences of Anaerobiosis in Wild Adult Sockeye Salmon,” Physiological and Biochemical Zoology 87(5), September/October 2014. http://www.jstor.org/stable/10.1086/677219 

Physiological and Biochemical Zoology (http://journals.uchicago.edu/PBZ) publishes original research in animal physiology and biochemistry, with a specific emphasis on studies that address the ecological and/or evolutionary aspects of physiological and biochemical mechanisms. Studies at all levels of biological organization from the molecular to the whole organism are welcome, and work that integrates levels of organization to address important questions in behavioral, ecological, evolutionary, or comparative physiology is particularly encouraged.

Contact: Emily Murphy / 773-702-7521 / emurphy@press.uchicago.edu
Source Contact: Heather Amos / University of British Columbia Public Affairs
heather.amos@ubc.ca

Emily Murphy | Eurek Alert!
Further information:
http://www.press.uchicago.edu/pressReleases/2014/August/140822_PBZ_Burnett.html

Further reports about: Consequences Fishway Flow Physiology UBC Zoology downstream mechanisms

More articles from Ecology, The Environment and Conservation:

nachricht Upcycling of PET Bottles: New Ideas for Resource Cycles in Germany
25.06.2018 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF

nachricht Dry landscapes can increase disease transmission
20.06.2018 | Forschungsverbund Berlin e.V.

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Detecting damage in non-magnetic steel with the help of magnetism

23.07.2018 | Materials Sciences

Researchers move closer to completely optical artificial neural network

23.07.2018 | Information Technology

Enabling technology in cell-based therapies: Scale-up, scale-out or program in-place

23.07.2018 | Health and Medicine

VideoLinks
Science & Research
Overview of more VideoLinks >>>