Killer whale sounds fail to urge gray whale to sea

Jul 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: Warning coloration paved the way for louder, more complex calls in certain species of poisonous frogs

not rated yet
add to favorites email to friend print save as pdf

Related Stories

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

Jul 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.

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.

Rescuers fail to save beached whales in Florida

Aug 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.

Recommended for you

Cat dentals fill you with dread?

Oct 24, 2014

A survey published this year found that over 50% of final year veterinary students in the UK do not feel confident either in discussing orodental problems with clients or in performing a detailed examination of the oral cavity ...

User comments : 0