Killer whale sounds fail to urge gray whale to sea

July 27, 2011

(AP) -- A female gray whale remains stuck in a Northern California river despite scientists' efforts to nudge the 40-ton mammal seaward with unpleasant underwater sounds.

Sarah Wilkin of the National Oceanic and Atmospheric Association says a rescue team Tuesday played killer whale and alarm sounds through speakers mounted on a boat on the Klamath River.

The team had hoped the sounds would help send the whale back in the direction of the a few miles downstream, but to no avail. The mother and her calf wandered into the river in late June.

Wilkin says the calf apparently weaned itself from the mother and returned to the ocean late Saturday.

Scientists are concerned the mother will not find enough food and that her skin will suffer in the freshwater environment.

Explore further: Whales trapped in California river

0 shares

Related Stories

Whales trapped in California river

May 16, 2007

A pair of humpback whales appears to be trapped in the Sacramento River because of fishing gear or rope in the California waterway.

Experts: Leave whale enough alone

August 3, 2007

Whale experts say that a young Minke now in a Scottish harbor should be allowed to decide for itself when to leave.

Rescuers fail to save beached whales in Florida

August 11, 2009

Hundreds of onlookers cheered Monday afternoon when a beached mother whale was reunited with her calf on a southern Florida beach, the mother frantically thrashing about and splashing water into the air.

2 gray whales stuck in N. Calif. river for month

July 26, 2011

(AP) -- Biologists say they're concerned about the health of a gray whale that's stranded in the Klamath River in Northern California after swimming up with her calf a month ago.

Recommended for you

Secrets of a heat-loving microbe unlocked

September 4, 2015

Scientists studying how a heat-loving microbe transfers its DNA from one generation to the next say it could further our understanding of an extraordinary superbug.

Plants also suffer from stress

September 4, 2015

High salt in soil dramatically stresses plant biology and reduces the growth and yield of crops. Now researchers have found specific proteins that allow plants to grow better under salt stress, and may help breed future generations ...

Ancient walnut forests linked to languages, trade routes

September 4, 2015

If Persian walnut trees could talk, they might tell of the numerous traders who moved along the Silk Roads' thousands of miles over thousands of years, carrying among their valuable merchandise the seeds that would turn into ...

Huddling rats behave as a 'super-organism'

September 3, 2015

Rodents huddle together when it is cold, they separate when it is warm, and at moderate temperatures they cycle between the warm center and the cold edges of the group. In a new study published in PLOS Computational Biology, ...

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.