Study: N. Pacific humpback whale population rises

[Woodmonkey]

Study: N. Pacific humpback whale population rises

Once hunted to the brink of extinction, humpback whales have made a dramatic comeback in the North Pacific Ocean over the past four decades, a new study says.

The study released Thursday by SPLASH, an international organization of more than 400 whale watchers, estimates there were between 18,000 and 20,000 of the majestic mammals in the North Pacific in 2004-2006.

Their population had dwindled to less than 1,500 before hunting of humpbacks was banned worldwide in 1966.

"It's not a complete success, but it's definitely very encouraging in terms of the recovery of the species," said Jeff Walters, co-manager of the Hawaiian Islands Humpback Whale National Marine Sanctuary.

The study, sponsored by the National Oceanic and Atmospheric Administration, is the most comprehensive analysis ever of any large whale population, said David Mattila, science coordinator for the sanctuary.

At least half of the humpback whales migrate between Alaska and Hawaii, and that population is the healthiest, Mattila said.

But isolated populations that migrate from Japan and the Philippines to Russia are taking a longer to recover after whaling operations ceased, he said.

"Whales are long-lived and give birth one at a time .... so if the population gets pushed too low, it may take quite awhile to come back. Maybe that's what's happening in the west," Mattila said.

The whales are protected under federal laws that include the Marine Mammal Protection Act and the Endangered Species Act.

Their resurgence could spark a debate over whether they should still be considered endangered, said Naomi McIntosh, superintendent for the humpback sanctuary.

"Those discussions are bound to happen, and we knew that going into the study, we anticipated it," she said. "I think it's too early to make that call."

The number of collisions between whales and boats has been increasing, probably because the population is larger, Walters said. Whale entanglements in marine debris, fishing gear and aquaculture structures also are a growing concern.

The whale count was made based on data collected from Hawaii, Mexico, Asia, Central America, Russia, the Aleutians, Canada and the United States' northwest coast.

The study used a system of photographing whale flukes — the lobes of a whale's tail — in six different feeding and breeding areas around the world, and then matching the pictures with whale flukes photographed in wintering areas.

The Source

[Snowden]

I have a friend who goes on whale watches every year. Imagine seeing this:



Thu May 22, 11:31 PM ET


In this Jan. 23, 2005 file picture, a humpback whale leaps out of the water in the channel off the town of Lahaina on the island of Maui in Hawaii. The number of endangered humpback whales in the North Pacific Ocean has dramatically increased to more than 18,000 over the last 40 years, according to a new study.
(AP Photo/Reed Saxon)

[redtanker]

awesome post.... awesome animals too.....thanx

[Snowden]

They are awesome; it's just the right word. I would love to go on one of those watches!

[conlor]

This is wonderful! One of my dreams is to see a whale in the ocean.