Churchill
Trekking Canada’s Sub-Arctic Region in Manitoba
Trekking Canada’s Sub-Arctic Region in Manitoba
Following a public outcry, the US National Oceanic and Atmospheric Administration (NOAA) announced that it has denied the Georgia Aquarium's request for a permit to import 18 beluga whales from Russia. NOAA Fisheries based the decision on requirements of the Marine Mammal Protection Act (MMPA).
A team of researchers, led by the University of St Andrews, has discovered that a new feeding technique has quickly spread to 40 per cent of a humpback whale population. Humpbacks around the world herd shoals of prey by blowing bubbles underwater to produce 'bubble nets'.
The feeding innovation, called 'lobtail feeding', involves hitting the water with the tail before diving to produce the bubble nets. Lobtail feeding was first observed in 1980, after the stocks of herring, previously the main food for the whales, became depleted.
Excerpts from Current Biology, Volume 22, Issue 20, R860-R861, 23 October 2012
The whale lived among a group of dolphins and socialized with two female white whales. The whale was exposed to speech not only from humans at the surface -- it was present at times when divers used surface-to-diver communication equipment.
Beaked whale species are thought to be sensitive to noise arising from certain human activities; in 2000, beaked whale strandings were observed coinciding with naval sonar exercises in the Bahamas.
Understanding the distribution and behavior of these species is important to minimize harmful impacts from human uses of the ocean.
A research team from Duke University, Woods Hole, and the Naval Undersea Warfare Center listened for foraging beaked whales and measured ocean features and distributions of prey off the eastern coast of Andross Island in the Bahamas.
Researchers have discovered that differences in the patterned clicks of sperm whale communication may lean towards culture rather than genetics. A study published in Behaviour Genetics suggests that sperm whale groups are made up of individuals that use the same dialect, rather than those that come from a similar area of the Pacific.
A team of paleobiologists surveyed hundreds of modern and ancient whale skeletons for decompression syndrome, which occurs when quick pressure changes force air or fat bubbles out of blood vessels.
Such damage would have been common when whales first began plunging into the depths of the ocean, says Brian Beatty, of New York College of Osteopathic Medicine in Old Westbury, US, who led the study.
New Sea Farm Raises White Whales in the White Sea.
Humpback whales (Megaptera novaeangliae) are intelligent, communicative, aerobatic, social, curious, playful and sometimes devious mammals that can grow to 16 meters in length, weigh 41tonnes (41,000 kg) and live over 50 years.
Asian Lunch, which says it sells 1,000-1,500 lunch boxes daily in Tokyo's business districts, will offer the meat once a week, starting Thursday with a South Asian-style keema curry. "I hope many young women will want to have it as it's healthy with high protein and low fat. It's also rich in iron," company spokeswoman Yuka Yamaguchi said. The firm is also hoping to attract young men who have never tasted the meat before, she said, adding that 600 servings had been prepared for its debut at a cost of 650 to 700 yen (6 to 6.5 dollars).