'Operation Humpback' taught lessons on rare whales
A Happy Ending!
POSTED: 8:50 a.m. EDT, May 31, 2007
Story Highlights• NEW: Scientists, rescuers ready to declare Operation Humpback a success
• Whales believed to have have reached Pacific Ocean
• Mother and calf first spotted May 12; they got as far as 90 miles inland
• Journey gave scientists unique opportunity to study endangered whales
SAN FRANCISCO, California (AP) -- Scientists observing the wayward wanderings of two humpback whales in a California river have more to celebrate than their return to the Pacific Ocean.
The duo provided an unexpected opportunity to study the endangered species.
The information scientists gathered includes sound recordings, logs of their behavior and tissue samples from both the mother and calf.
It which will be analyzed to determine whether they come from a pod of whales that travel between Mexico and California. (Watch whales make steady progress down Sacramento River )
"All those things are very hard to get. So what we are doing is filling up the knowledge bank on humpback whales in the wild," said Jim Oswald, a spokesman for the nonprofit Marine Mammal Center, a private scientific and rescue organization.
The experience also could prove helpful in approaching other stranded whales, he said.
After spending more than two weeks trying to coax the whales back to sea with mixed results, officials are ready to declare Operation Humpback a success.
Since the previously conspicuous whales had not been seen for a full day, officials assumed the duo found their way home, undoing a wrong turn that inspired a range of rescue attempts.
The whales, believed to be a mother and calf, were last observed at sunset Tuesday swimming in San Francisco Bay about 10 miles north of the city. A convoy of boats that accompanied the whales across the bay to keep traffic at a distance stopped escorting them when it got dark.
Officials think the whales slipped out of San Francisco Bay to the open sea late Tuesday night or early Wednesday morning, when no one was watching.
To make sure the whales did not take another wrong turn, two government boats were launched Wednesday morning to look for them in the Pacific Ocean. Rescuers relied on reports from commercial vessels and Coast Guard patrols to determine if the humpbacks still were in the bay.
http://www.cnn.com/2007/US/05/30/del....ap/index.html