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Topic: Freshwater dolphin


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In the News (Sun 6 Dec 09)

  
  Dolphin (aquatic mammal) - Search View - MSN Encarta
A dolphin was on the coat of arms of the dauphin, the title given the eldest son and heir of the king of France.
Dolphins range in size from the small tucuxi dolphin, which grows to about 1.2 m (4 ft) in length and weighs about 50 kg (110 lb), to the killer whale, which can grow to 9.8 m (32 ft) in length and weigh over 5,500 kg (12,100 lb).
Dolphins are commonly fl, brown, or gray in color and are often marked with patterns of white or light colors.
encarta.msn.com /text_761552786__1/Dolphin_(aquatic_mammal).html   (4227 words)

  
 Critter of the Day
Freshwater species include the Ganges River (or "susu"), which is nearly blind; the largest freshwater species, the Amazon River ("boutu"); and the Irrawaddy dolphin, one of the slower swimmers.
Dolphins are small-toothed whales that migrate through the tropical and temperate oceans of the world; freshwater dolphins live in the rivers of South America and tropical Asia.
Dolphins are born weighing 30 to 50 pounds and are 35 to 50 inches in length.
www.care2.com /channels/eco_info/wildlife/critter_wwf/critter_dolphin.html   (511 words)

  
 Chinese River Dolphin - Wikipedia, the free encyclopedia
The Chinese River Dolphin (Lipotes vexillifer) is a freshwater dolphin found only in the Yangtze River in China.
The dolphins are described in the Han Dynasty dictionary Erya.
In 1978, the Chinese Academy of Sciences established the Freshwater Dolphin Research Centre (淡水海豚研究中心) as a branch of the Wuhan Institute of Hydrobiology.
en.wikipedia.org /wiki/Chinese_River_Dolphin   (504 words)

  
 Animals: Freshwater Dolphins
Freshwater dolphins were once common in many of the world's major rivers before pollution and development destroyed most of their habitat.
Freshwater dolphins living in India's Ganges river and China's Yangtze river are on the verge of extinction –; following the same path as the now-extinct Mississippi river dolphin.
Freshwater dolphins are still found in Amazon and Orinoco river tributaries, but they are also in trouble.
courses.dce.harvard.edu /~cscie23/public_html/images/sharris2/dolphins.htm   (478 words)

  
 Dolphin's at Nature Haven   (Site not responding. Last check: 2007-10-26)
Dolphins give live births with the young staying with their mothers for a year or more.
The Whitefin dolphin inhabits the Yangtze river of China.
The Boutu dolphin (Inia geoffrensis) is a freshwater dolphin found in the Amazon and Orinoco rivers in South America.
www.naturehaven.com /Ocean/dolphins.html   (479 words)

  
 Tucuxi dolphin - Sotalia fluviatilis: More Information - ARKive
The freshwater subspecies inhabits rivers and lakes, but is not found in flooded forests and avoids rapids, whereas the marine subspecies inhabits shallow, protected estuaries and bays (2).
A shy dolphin, the tucuxi tends to be most active during the early morning and late afternoon, but is usually a slow swimmer that jumps infrequently (5).
The tucuxi dolphin is regularly caught accidentally in gillnets of large fishing trawlers, and is the most common cetacean in the by-catch of coastal fisheries in the south Caribbean Sea.
www.arkive.org /species/GES/mammals/Sotalia_fluviatilis/more_info.html   (798 words)

  
 Boto - Wikipedia, the free encyclopedia
The Boto, Amazon River Dolphin or Pink River Dolphin[1] (Inia geoffrensis) is a freshwater or river dolphin.
By the precarious standards of the river dolphins, the Boto is the most secure species in the superfamily.
In contrast to the rapidly dwindling areas of population of the Baiji and the Ganges and Indus River Dolphin, the area populated by the Boto seems to have remained fairly steady over time.
en.wikipedia.org /wiki/Boto   (748 words)

  
 baiji.org foundation — Species Guide   (Site not responding. Last check: 2007-10-26)
Freshwater tucuxi, a freshwater population of the tucuxi which is found in the Amazon and Orinoco Rivers in South America.
Irrawaddy dolphin, populations of which are found in freshwater stretches of the Mekong in Laos and Cambodia, the Mahakam River in Indonesia and the Ayeyarwady River (formerly Irrawaddy) in Myenmar (formerly Burma).
The future of freshwater dolphins and porpoises appears to be bleak unless action is taken immediately to reduce the pressure on their freshwater ecosystems.
www.baiji.org /in_depth/freshwater_dolphins/species_guide.html   (850 words)

  
 Baiji Dolphin may not survive another decade!   (Site not responding. Last check: 2007-10-26)
Dolphins, Whales and Porpoises: 2002-2010 Conservation Action Plan for the World's Cetaceans, is an authoritative, benchmark publication providing the latest information on the status of cetaceans worldwide while recommending actions that could help save the most threatened species.
As a guiding document for all those involved in cetacean conservation, it will be used by scientists in the field and academic institutions, as well as those making critical decisions about the future of these species and their habitats.
The baiji, a freshwater dolphin with its distribution now limited to the main channel of the Yangtze River in China, is considered the most endangered cetacean.
www.talkwildlife.citymax.com /page/page/532558.htm   (926 words)

  
 Wikinfo | Chinese River Dolphin   (Site not responding. Last check: 2007-10-26)
The Chinese River Dolphin, or Baiji (白鱀 Pinyin: bai1 ji4) (Lipotes vexillifer) is a freshwater dolphin found only in the Yangtze River in China.
The dolphins are described during the Han Dynasty in a biological encyclopedia, Erya (《爾雅》).
In 1978, the Chinese Academy of Sciences established the Freshwater Dolphin Research Centre (淡水海豚研究中心) as a branch of the Wuhan Institute of Hydrobiology (武汉水生生物研究所).
www.wikinfo.org /wiki.php?title=Chinese_River_Dolphin   (431 words)

  
 WWF - First regional freshwater dolphin survey underway in South America
"Freshwater dolphins are one of the most endangered mammals in the world," explained Fernando Trujillo, Director of Fundación Omacha, one of the organizations leading the expedition, with support from WWF, the Wildlife Conservation Society, Fundación La Salle and the Whale and Dolphin Conservation Society.
This is the first dolphin counting initiative in South America and it follows similar counts in Asia where WWF has financed research expeditions in India, Pakistan and Bangladesh.
In addition to spotting the pink river dolphin, scientists will also be on the look out for the grey river dolphin (Sotalia fluviatilis) — a dolphin species darker and smaller than the boto, with a shorter snout and a distinctive triangular dorsal fin.
www.panda.org /news_facts/newsroom/index.cfm?uNewsID=68280   (777 words)

  
 Down but not out how to save a dolphin
Dolphins are usually found in shallow waters in mangrove forests and estuarine areas of tropical and subtropical seacoasts.
The dolphin population in the latter two are under threat, having suffered range declines, over-fishing and depletion in numbers.
Dolphins have been traditionally regarded as friendly to humans, even to the extent of rounding up large numbers of fish for them to catch, and dolphins that have been accidentally caught in throw-nets and seines (large nets with sinkers at the bottom and floats at the top), if found alive, are extricated and released.
www.myanmar.gov.mm /myanmartimes/no156/myanmartimes8-156/Timeouts/03.htm   (1106 words)

  
 Indus Dolphin Rescue Drive from 15th
The sources said that between August and December, the department spotted 33 dolphins stranded in the canals of the Sukkur and Guddu Barrages in Sindh.
The sources said shortage of water and food and the current repair work on the Sukkur Barrage were the main reasons for the stranding of the aquatic mammals, which belong to the family Delphinidae and are related to the tooth whales.
The highest concentration of dolphin was found between the Guddu and Sukkur Barrages, where 602 dolphins have been recorded, the sources said.
www.wwfpak.org /7-12-04dolphin.php   (506 words)

  
 The Indus Dolphin > About Indus Dolphins > Indus River Dolphin : Factsheet
For Indus dolphins being almost completely blind is not a disadvantage but an adaptation to living in a turbid river environment where eyes are virtually useless.
Dolphins are pregnant for approximately 10 months and the babies are thought to be born in spring.
Lack of Freshwater - Extensive irrigation schemes mean that during winter months there is very little water left in the Indus River for the dolphins to live in.
www.indusdolphin.org.pk /about/factsheet.asp   (815 words)

  
 Oceanic Society - Research Expeditions: Amazon River: Dolphins
The acrobatic tucuxi is similar in appearance to the bottlenose dolphin and is the smallest of the freshwater dolphins, measuring up to six feet.
Working side-by-side with the researcher, participants will be actively engaged in identifying dolphins and recording their behaviors measuring the physical environment, monitoring the acoustic environment with hydrophones and recording the dolphins’ unique vocalizations.
The Amazon River dolphin is the largest species of freshwater dolphin in the world, reaching lengths of up to 9 feet.
www.oceanic-society.org /pages/alltrips/rschtrip11.html   (576 words)

  
 WebWire® | Dolphin death toll mounting in Asia
Eight out of ten of the dead dolphins were calves, continuing the worrying trend of high mortality in baby dolphins in the Mekong.
At least one of the dead dolphins was killed by entanglement in fishing gillnets, probably the single greatest known threat to the Mekong population.
Similar threats have dramatically reduced populations of the Vaquita dolphin in the Gulf of California, the Harbour porpoise in the Baltic Sea, and the Irrawaddy dolphin in Southeast Asia.
www.webwire.com /ViewPressRel.asp?aId=8918   (453 words)

  
 Inia geoffrensis
Amazon River Dolphin (Inia geoffrensis): Pink River Dolphin or Boto (Inia geoffrensis) The Boto or pink river dolphin is the largest of the river dolphins.
Boto: The Boto, or Amazon River Dolphin (Inia geoffrensis) is a freshwater or river dolphin.
Fernando Trujillo: Habitat use and social behaviour of the freshwater dolphin Inia geoffrensis (de Blainville 1817) in the Amazon and Orinoco basins.
specieslist.com /endangered/scientific_name/I/Inia_geoffrensis.shtml   (3319 words)

  
 [No title]
BC freshwater seal (British Columbia NA): A small seal is said to live in various lakes in the interior of BC.
Amazonian ridge-backed dolphin (Amazon River SA): A strange creature that is mentioned in the tribal lore of the natives in that region, it is a large river dolphin, of a pinkish-brown colour, which has a continous row of small, triangular ridges down it's back, like several small dorsal fins next to each other.
Must be a population of brindled dolphins which lives off the coast of Senegal, which is not where those dolphins are usually found.
www.angelfire.com /bc2/cryptodominion/cetaceans.html   (1924 words)

  
 ACS boto (Amazon River Dolphin) Cetacean Fact Sheet - American Cetacean Society
The Amazon River Dolphin, also called the boutu, boto, or bufeo, is the largest of the freshwater dolphins, and like all freshwater dolphins it is endangered because of hunting, human pressures, and degradation of habitat.
The conical teeth are in the forward part of its mouth and are used for holding and grasping prey which is then worked to the rear of the mouth to be thoroughly crushed by the molars before being swallowed.
The neck vertebrae are not fused together and this dolphin is able to bend its neck to an angle of 90 degrees to its body, downward or sideways.
www.acsonline.org /factpack/Boto.htm   (893 words)

  
 Breaking the Surface - National Wildlife Magazine
Dolphins inhabit all of the world’s oceans, from the poles to the equator, and some are even found in freshwater habitats.
Several dolphin species were identified by scientists only within the last 50 years, and it’s possible that new ones still will be discovered swimming the high seas.
Among the smallest dolphins, reaching an adult length of only 5 feet, Commerson’s dolphins are social and curious, often approaching ships to play on the bow or “surfing” waves crashing into Falkland Island beaches.
www.nwf.org /nationalwildlife/article.cfm?issueID=73&articleID=1027   (821 words)

  
 YK-RASI Activities
In 2000, the last dolphin, which was born in captivity, died.
Also, unsustainable fishing techniques, such as electric fishing and using poison, have decreased the dolphins’ prey and one dolphin had died in 2004 without any visible wounds, but which was suspected to have died as a result of an electro-shock.
Acoustic pollution of frequent speedboat traffic and coal container barges in major dolphin habitat, especially in narrow tributaries, cause dolphins to dive longer or actually evade coal container barges by swimming away from the direction of the boat.
www.geocities.com /yayasan_konservasi_rasi/ykrasi_activity.html   (406 words)

  
 WWF - WWF's Global River Dolphin Initiative
The dolphin has been a species of special concern to WWF since 1997, and Farida village was chosen for a pilot dolphin conservation initiative in 2001.
The river dolphins of India’s sacred Ganges River are dwindling due to pollution and overfishing.
The Ganges River dolphin lives in one of the world's most densely populated areas, and is threatened by removal of river water and siltation arising from deforestation, pollution and entanglement in fisheries nets.
www.panda.org /about_wwf/what_we_do/freshwater/publications/index.cfm?uNewsID=21901&uLangID=1   (1045 words)

  
 Animal Info - Boto (Amazon River Dolphin)
Ganges River dolphin, and the Indus River dolphin.
One unusual example of dolphins utilizing both the deeper and shallower portions of habitat was reported by Leatherwood et al.
It is exceptionally flexible and maneuverable, able to swim in confined and shallow areas, and among trees in the flooded forest.
www.animalinfo.org /species/cetacean/iniageof.htm   (2306 words)

  
 Baiji - Lipotes vexillifer: More Information - ARKive
It is a very shy and graceful freshwater dolphin, with a rather stocky body, roughly the size of an adult human (3).
This river dolphin is found only in the middle and lower reaches of the Yangtze River, China (5) between two large tributary lakes Dongting and Poyang (1).
The dolphins have also become caught in fishing gear, and engineering explosions used to keep navigation channels open are another source of mortality.
www.arkive.org /species/GES/mammals/Lipotes_vexillifer/more_info.html   (1190 words)

  
 WWF - Freshwater Dolphins in the Ganges
The Ganges River Dolphin is an endemic species of the Ganges, Brahmaputra, and Meghna river systems, extending from the foot of the Himalayas to the tidal zone in India, Bangladesh, Nepal and Bhutan, and is an extremely docile and graceful creature.
Since the river dolphin is at the apex of the aquatic food chain, its presence in adequate numbers symbolises greater bio diversity in the river system.
An Annual Status Monitoring for the Ganges River dolphins was conducted in the states of Rajasthan, Uttar Pradesh, Madhya Pradesh and Bihar.During this year 2442 km of river stretch was covered and around 626 number of dolphins were recorded.
www.wwfindia.org /about_wwf/what_we_do/freshwater_wetlands/our_work/freshwater_dolphin/index.cfm   (481 words)

  
 pink river dolphin - 3rd dolphin   (Site not responding. Last check: 2007-10-26)
Pink River Dolphin or Boto (Inia geoffrensis) The Boto or pink river dolphin is the largest of the river dolphins.
The Amazon River Dolphin, also called the boutu, boto, or bufeo, is the largest of the freshwater dolphins...
There are two species of river dolphin in the upper Amazon basin, the boto, or pink river dolphin (Inia geoffrensis), and the tucuxi...
dolphin.gundack.info /dir11/pink-river-dolphin.html   (525 words)

  
 baiji.org foundation — Mainpage   (Site not responding. Last check: 2007-10-26)
The world’s first-ever captive Yangtze finless porpoise and freshwater cetacean was born in China’s Wuhan Baiji Conservation Aquarium.
Freshwater dolphins and porpoises are culturally important creatures that have become the ultimate symbols for the health of the World’s major freshwater systems.
The international "Workshop on the Conservation of China's Baiji River Dolphin and Yangtze Finless Porpoise 2004" marked a major step forward towards successfully networking global expertise with Chinese research institutes and Government Authorities in an effort to secure a sustainable future for the baiji river dolphin and China's Yangtze River ecosystem.
baiji.org   (375 words)

  
 Freshwater Dolphin Fish   (Site not responding. Last check: 2007-10-26)
WWF - First regional freshwater dolphin survey underway in South...
The Official State of Florida Freshwater Fish is the Largemouth Bass species called...
In a global conservation study, scientists are hunting for the world's largest freshwater fish.
fishing.directbizz.info /freshwater-dolphin-fish.html   (265 words)

  
 Welcome to Indus river vacations   (Site not responding. Last check: 2007-10-26)
The dolphin, found in Pakistan, is unlike most other dolphins that live in the ocean.
The Indus and Ganges rivers are each home to their own freshwater dolphins, both also very rare, and the Amazon hosts two, the Tucuxi and the Boto.
Indus river dolphins, Platanista gangetica minor (Roxburgh, 1801), (aka Blind river dolphin) are a subspecies of the Ganges river dolphins.
river-vacations.info /indus-river-vacations/dolphins-indus-river.php   (831 words)

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