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Latest Cetacea Stories

2011-06-23 08:21:00

LONDON, June 23, 2011 /PRNewswire/ -- In February and March 2012, Necker Belle [http://www.neckerbelle.virgin.com ] will be introducing whale watching charters in the Silver Bank situated approximately 100km north of the town of Puerto Plata in the Dominican Republic and 138km southeast of the Turks and Caicos Islands. (Photo: http://www.newscom.com/cgi-bin/prnh/20110623/463459-a ) (Photo: http://www.newscom.com/cgi-bin/prnh/20110623/463459-b ) During...

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2011-06-15 10:45:00

Traces of radioactive caesium have been found by Japanese whale hunters in two cetaceans recently harpooned off its shores in the Pacific Ocean, a fisheries agency official told AFP on Wednesday. Culled off the northern island of Hokkaido, the two minke whales showed readings of 31 becquerels and 24.3 becquerels of caesium per kilogram, the fisheries official claimed, adding that the cause may be related to the recent radiation leak from the Fukushima nuclear plant. Despite a worldwide ban on...

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2011-06-08 08:45:58

Whales are the earth's largest creatures, yet they are incredibly hard to study in the open ocean. For decades scientists have used boats, aircraft and even high cliffs to conduct visual surveys and gather data on whale and dolphin populations. Today, these live surveys form the basis of our knowledge of these marine mammals"”what species live where in the world, which ones tend to live together and how abundantly they are represented. Now, recent work by paleobiologist Nick Pyenson of...

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2010-12-16 11:22:05

Genetics of net entanglement has implications for small cetacean conservation Dolphins along coast of Argentina could experience a significant loss of genetic diversity because some of the animals that accidently die when tangled in fishing nets are related. According to a new genetic analysis published this week in the journal PLoS One, Franciscana dolphins that die as by-catch are more than a collection of random individuals: many are most likely mother-offspring pairs. This result, which...

2010-10-15 16:57:55

The ordinary squid, Loligo pealii"”best known until now as a kind of floating buffet for just about any fish in the sea"”may be on the verge of becoming a scientific superstar, providing clues about the origin and evolution of the sense of hearing. In a hangar-like research building at the Woods Hole Oceanographic Institution (WHOI), biologist T. Aran Mooney is exploring virtually uncharted waters: Can squid hear? Is their hearing sensitive enough to hear approaching predators?...

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2010-09-30 11:54:35

Genomic record matches fossil record in the whales' common ancestor, say UC Riverside biologists In contrast to a toothed whale, which retains teeth that aid in capturing prey, a living baleen whale (e.g., blue whale, fin whale, humpback, bowhead) has lost its teeth and must sift zooplankton and small fish from ocean waters with baleen or whalebone, a sieve-like structure in the upper jaw that filters food from large mouthfuls of seawater. Based on previous anatomical and fossil data studies,...

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2010-09-01 09:02:10

A combination of the biology of marine mammals, mechanical vibrations and acoustics has led to a breakthrough discovery allowing scientists to better understand the potential harmful effects of sound on marine mammals such as whales and dolphins. An international team of researchers from San Diego State University, UC San Diego, and the Kolmården Zoo in Sweden has developed an approach that integrates advanced computing, X-ray CT scanners, and modern computational methods...

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2010-08-26 10:38:28

Scientists at Georgetown University, the National Aquarium and the University of Queensland are the first to extract DNA from dolphin blow (breath exhalations). The researchers found that blow-sampling, which involves collecting exhalations from the blowholes of whales, dolphins and porpoises, could be developed as a less invasive method for DNA collection. Their findings are explained in the Aug. 25 edition of the online journal PLoS ONE in an article titled "Thar She Blows! A Novel Method...

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2010-08-21 09:03:36

Nearly 60 pilot whales have died after becoming stranded on a beach in northern New Zealand, conservation authorities reported Friday.There were 73 total whales discovered on the beach mid-morning and the Department of Conservation's Carolyn Smith said the whales most likely beached overnight, which is why so many died before rescue operations were launched.Of the 73 pilot whales, 15 have survived, but are reported to be in "poor condition." Volunteers are making another attempt to rescue the...

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2010-06-29 13:15:00

Finless porpoises may be more endangered than previously thought. A new study of finless porpoises, a rare type of toothed whale, found that there are two species, not one, and they rarely intermingle. Scientists say that finless porpoises living in the fresh waters of China's Yangtze river are genetically unique, numbering fewer than 1000.  They warn that greater efforts must be made to prevent these animals. The whales inhabit a wide range of tropical and temperate waters...


Latest Cetacea 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...

Dall’s Porpoise, Phocoenoides dalliz
2013-08-29 10:15:35

Dall’s porpoise (Phocoenoides dalliz) can only be found in the North Pacific, with a range that includes the Sea of Japan and the Okhotsk and Bering Seas. This range extends to southern California in the east and to the southern waters of Japan in the west. When normal weather patterns change and waters become colder, this species can be found in in Baja, California, specifically in Scammon's Lagoon, and strays can occasionally be found in the Chukchi Sea. It prefers to reside in cold...

Blainville's Beaked Whale, Mesoplodon densirostris
2013-08-17 13:31:16

Blainville’s beaked whale (Mesoplodon densirostris), also known as the dense-beaked whale, can be found in a large range that includes the warm and tropical waters of all oceans. It prefers to reside at depths between 1,600 and 3,000 feet and does not migrate. This species received its common name from Blainville, the man who classified it as Delphinus densirostris after studying a description of a piece of one individual’s nose located in the Paris Museum. In 1846, John Edward Gray...

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...

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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.