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 Climate change alters cast of winter birds
20.10.2014 | University of Wisconsin-Madison

nachricht First Detailed Map of Aboveground Forest Carbon Stocks in Mexico Unveiled
17.10.2014 | Woods Hole Research Center

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

The most recent press releases about innovation >>>

Anzeige

Anzeige

Event News

Battery Conference April 2015 in Aachen

16.10.2014 | Event News

Experts discuss new developments in the field of stem cell research and cell therapy

10.10.2014 | Event News

Zoonoses: Global collaboration is more important than ever

07.10.2014 | Event News

 
Latest News

Siemens wins major HVDC order in Canada

20.10.2014 | Press release

Hubble Finds Extremely Distant Galaxy through Cosmic Magnifying Glass

20.10.2014 | Physics and Astronomy

Rapid agent restores pleasure-seeking ahead of other antidepressant action

20.10.2014 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>