Climate change may reduce vulnerable salmon populations

April 6, 2016, Wiley

New research in north-central Mongolia illuminates the effects of global climate change on certain vulnerable species of salmon.

Air temperature records demonstrate that in the last 40 years, Northern Mongolia's rate of warming has been 3-times greater than the northern hemisphere average. Streamside measurements indicate that salmon metabolism has increased exponentially with temperature, and the fish are now experiencing temperatures near their upper levels for growth during summer.

"Because of the remote location of many Northern Mongolian rivers, the are generally in great shape. However, many of the salmonid species in Mongolia are already living near the limits of their ability to withstand ," said Dr. Kyle Hartman, co-author of the Ecology of Freshwater Fish study.

"As the climate here continues to warm, these species could be pushed out of one of their last refuges in the world," added co-author Dr. Olaf Jensen.

Explore further: Drought pushes endangered California salmon to the brink

More information: Kyle J. Hartman et al. Anticipating climate change impacts on Mongolian salmonids: bioenergetics models for lenok and Baikal grayling, Ecology of Freshwater Fish (2016). DOI: 10.1111/eff.12282

Related Stories

Recommended for you

NASA instruments image fireball over Bering Sea

March 22, 2019

On Dec. 18, 2018, a large "fireball—the term used for exceptionally bright meteors that are visible over a wide area—exploded about 16 miles (26 kilometers) above the Bering Sea. The explosion unleashed an estimated 173 ...

Paleontologists report world's biggest Tyrannosaurus rex

March 22, 2019

University of Alberta paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The 13-metre-long T. rex, nicknamed "Scotty," lived in prehistoric Saskatchewan ...

Coffee-based colloids for direct solar absorption

March 22, 2019

Solar energy is one of the most promising resources to help reduce fossil fuel consumption and mitigate greenhouse gas emissions to power a sustainable future. Devices presently in use to convert solar energy into thermal ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.