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Latest Oceanic dolphins Stories

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2008-11-24 13:50:00

A team of researchers has set out to calculate the power of a dolphin's thrust by using digital video and millions of tiny bubbles. In 1936, zoologist James Gray estimated that the drag dolphins must overcome to swim faster than 20 miles an hour. Gray said dolphins lacked the muscles to swim so fast, and yet they did. This is known as Gray's Paradox. Over the decades, scientists have found flaws in Gray's work, and most biologists have rejected his theory. "There is no paradox. The dolphins...

2008-07-30 12:00:36

By Warren Cornwall, Seattle Times Jul. 30--The U.S. Navy can keep setting off underwater explosions in Puget Sound without posing a serious threat to protected salmon, steelhead and orcas, a federal wildlife agency has concluded. The National Marine Fisheries Service (NMFS) determined that dozens of naval exercises involving explosive charges up to 20 pounds could kill thousands of salmon. But the agency also said it wouldn't make a significant dent in the overall fish populations and...

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2008-07-23 16:10:00

A U.S. team of researchers found that female bottlenose dolphins whistle 10 times more often than usual after giving birth in order to help newborns recognize their own mothers. These "signature whistles" are unique to each animal, allowing them to be used for identification. The highly social bottlenose dolphins use the signature calls to help baby calves in their first weeks of life. The calves encounter many adult females that they could potentially mistake for their mothers. "The...

2008-07-09 18:00:19

THE Department of Conservation is calling for submissions on its proposal to establish two marine mammal sanctuaries in Southland. The new marine mammal sanctuaries are in areas where dolphins are known to range -- Porpoise Bay-Fortrose on the Catlins coast, and Te Wae Wae Bay on the south coast. Acting Conservation Minister Mahara Okeroa said mining and acoustic seismic surveying restrictions would apply in the sanctuaries, increasing the protection of the dolphins. The measures...

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2008-07-07 09:58:12

Four weeks on from the shocking incident that led to the death of 26 dolphins near Falmouth, research released Monday sheds new light on the extent of the problems facing Cornwall's marine mammals. A study by the University of Exeter and Cornwall Wildlife Trust, published in the journal Biodiversity and Conservation, has revealed a disturbing rise in the number of whales, dolphins and porpoises found dead on Cornish beaches. The frequency of these mammals, collectively known as cetaceans,...

2008-07-03 15:00:00

By WAYNE PARRY, THE ASSOCIATED PRESS SEA BRIGHT Trapping them in giant cages. Using enormous nets to herd them along. Flying helicopters low over the water, and playing recordings of killer whales. From the sensible to the silly, there is no shortage of suggestions from the hundreds of spectators lining the banks of a river near the Jersey Shore on how to get a family of 15 bottlenose dolphins back out to sea. For nearly three weeks now, the dolphins have wowed crowds along the banks...

2008-07-02 18:00:03

By THE ASSOCIATED PRESS SEA BRIGHT, N.J. - A group of 15 dolphins who have taken up residence in a river near the Jersey Shore will be allowed to stay there through the July Fourth weekend, even though a nearby fireworks display draws heavy boat traffic. Federal environmental officials say the danger of trying to move or scare the dolphins back into the ocean outweighs the risk of letting them stay in the Shrewsbury River. "They're evidently in good condition," said Teri Frady, a...

2008-07-02 12:00:06

By Jan Hefler and Troy Graham, The Philadelphia Inquirer Jul. 2--SEA BRIGHT, N.J. -- McLoone's Rum Runner, a waterfront restaurant in Monmouth County, is known for its good location near the ocean, a few miles up the Shrewsbury River. Now a group of bottlenose dolphins has found the spot agreeable as well, wandering up the river and spending the last couple of weeks frolicking off the restaurant's outdoor deck. Hundreds of people toting cameras and binoculars have been drawn to the...

2008-06-14 09:00:21

By DIANE TENNANT By Diane Tennant The Virginian Pilot VIRGINIA BEACH A rare melonheaded whale was found dead this week on Assateague Island, the Virginia Aquarium & Marine Science Center said Friday. The aquarium's Stranding Response Team could not immediately determine a cause of death. The species is thought to be a tropical deep-diving whale. Fewer than 20 have stranded on the mainland United States, mostly in Texas and Florida. A similar species stranded on the Maryland...

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2008-06-05 15:39:03

2 dolphin stocks may be recovering from tuna fishing practicesThe numbers of Northeastern offshore spotted and eastern spinner dolphins in the eastern tropical Pacific Ocean are increasing after being severely depleted because of accidental death in the tuna purse-seine fishery between 1960 and 1990, according to biologists from NOAA's Fisheries Service."These estimates are encouraging because they are consistent with what we would expect to see if these stocks are recovering, now that...


Latest Oceanic dolphins Reference Libraries

Cetology
2013-10-02 11:21:29

Cetology is a branch of marine mammal science that studies about eighty species of dolphins, whales, and porpoise, all of which are classified within the Cetacea order. Cetologists, who practice cetology, work to understand the distribution, development, behavior, and other aspects of cetaceans. The study of cetaceans began in the Classical era. About 2,300 years ago, Aristotle documented details about some cetacean species, calling them mammals, while traveling on the Aegean Sea with...

Indo-Pacific Bottlenose Dolphin, Tursiops aduncus
2013-09-19 11:24:25

The Indo-Pacific bottlenose dolphin (Tursiops aduncus) is one of three recognized species of bottlenose dolphin that can be found in the waters near southern Australia, South China, and India. Its range also includes the Red Sea and the eastern coastal areas of Africa. All bottlenose dolphins were classified as one species, the common bottlenose dolphin or T. truncates, until 1998 when the Indo-Pacific bottlenose dolphin was found to be distinct. This species is distinct from other bottlenose...

Burrunan Dolphin, Tursiops australis
2013-09-19 11:08:29

The Burrunan dolphin (Tursiops australis) is one of three recognized species of bottlenose dolphin. It can be found in two areas of Victoria, Australia. One population can be found in the Gippsland Lakes, where about 50 reside, and one in Port Phillip, where about 100 individuals reside. Haplotypes of the Burrunan dolphin have been discovered in an area extending from the Spencer Gulf waters west to St. Francis Island. Because of its low numbers, it is thought to deserve protection from the...

Hourglass Dolphin, Lagenorhynchus cruciger
2013-08-16 10:45:47

The hourglass dolphin (Lagenorhynchus cruciger) is a rare species that can be found in Antarctic and subAntarctic waters. Most sightings of this species have been made in the southern waters near the Shetland Islands, off the coast of Tierra del Fuego, Argentina, and in the southern waters near New Zealand. It is thought that this dolphin does not congregate in large numbers in any area of its circumpolar range. Qouy and Galmard first recognized the hourglass dolphin as a new species in...

Long-Beaked Common Dolphin, Delphinus capensis
2013-06-22 16:27:01

The long-beaked common dolphin (Delphinus capensis) is a species within the Delphinus, or common dolphin, genus that can be found in a fragmented range within tropical and warm temperate habitats. Its range includes western and southern areas of Africa, central California and Mexico, coastal regions of Peru, Taiwan, Korea, Japan, a large portion of western South America. The long-beaked common dolphin was not considered a distinct species until the 1990’s, along with all other species of...

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Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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