National News

Long, fast swims could be fatal for salmon

By The Canadian Press

VANCOUVER - Reaching spawning grounds is hard work for salmon and researchers from the University of British Columbia say fish forced to "sprint" through fast-moving water or other obstacles can suffer heart attacks.

The study found sockeye are more likely to die in the hours after being forced to swim fast and hard to push through turbulent waters below dams.

Researchers say so-called "burst swimming" creates severe stress that could lead to heart failure.

Female sockeye are especially prone, in part because females may be using more energy to produce eggs, hiking their sensitivity to other environmental challenges.

Biologist and lead author Nicholas Burnett says the study demonstrates how vital it is for salmon to have easy access around obstacles in the river.

The study is published in the latest issue of the journal Physiological and Biochemical Zoology.

We encourage an open exchange of ideas on this story's topic, but we ask you to follow our guidelines for respecting community standards. Personal attacks, inappropriate language, and off-topic comments may be removed, and comment privileges revoked, per our Terms of Use. Please see our FAQ if you have questions or concerns about using Facebook to comment.

You might like ...

Police tackle, apprehend man in Campbell River
 
Meet the 2014 Citizen of the Year
 
Langley Secondary School closure considered
Local 10-year-old declares the right to a healthy environment
 
Woman found dead in Yale
 
Mission hockey team serves Hope Central
Referendum poll shows slim lead for new transit tax
 
Matthew Foerster pleads guilty to violent attacks
 
Plan to manage Rossland Range

Community Events, December 2014

Add an Event

Read the latest eEdition

Browse the print edition page by page, including stories and ads.

Dec 17 edition online now. Browse the archives.