Sea lion decline linked to climate change

March 19, 2007

The recent decrease in the Alaskan sea lion population is linked to the changing ocean climate, a report says.

The report was published in "Fisheries Oceanography."

The study said climate change caused the creation of a new fish system around Alaska, had the new fish system's lower energy value has led to the dramatic fall in the area's sea lion population, the Anchorage Daily News reported.

By combining research from 28 scientists, the study found that since the dramatic climate shift began in the North Pacific back in 1976-77, regional fish populations have varied and that variance has proven detrimental to sea lions.

While the National Marine Fisheries Service recognized the efficacy of the new research, officials there are not willing to alter regulations to benefit the sea lions without further evidence, the report said.

"Oceanographic changes can change the distribution of fish, as can man's activities," agency biologist Lowell Fritz told the Daily News. "Lots of things affect sea lion energy."

Copyright 2007 by United Press International

Explore further: Mounting threat to Galapagos from 'El Nino'

Related Stories

Mounting threat to Galapagos from 'El Nino'

July 23, 2015

The Galapagos Islands, celebrated for their breathtaking biodiversity, could face a major threat from "El Nino," the weather system known to wreak havoc every few years.

Climate change projected to drive species northward

December 10, 2014

Anticipated changes in climate will push West Coast marine species from sharks to salmon northward an average of 30 kilometers per decade, shaking up fish communities and shifting fishing grounds, according to a new study ...

Recommended for you

Study calculates the speed of ice formation

August 3, 2015

Researchers at Princeton University have for the first time directly calculated the rate at which water crystallizes into ice in a realistic computer model of water molecules. The simulations, which were carried out on supercomputers, ...

'Snowball earth' might be slushy

August 3, 2015

Imagine a world without liquid water—just solid ice in all directions. It would certainly not be a place that most life forms would like to live.

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.