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Topic: Humpback Dolphins


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  Humpback dolphin - Wikipedia, the free encyclopedia
The humpback dolphins are the members of the genus Sousa.
These dolphins are characterized by the conspicuous humps and elongated dorsal fins found on the back of adult members of the species.
Humpback dolphins found in Chinese waters are locally known as Chinese White Dolphins.
en.wikipedia.org /wiki/Indian_Humpback_Dolphin   (371 words)

  
 Humpback Whales in Hawaii pictures, behaviors
Humpback whales (na kohola) are found in all of the world's oceans, although they generally prefer near shore and near-island habitats for both feeding and breeding.
The humpback's pectoral fin is longer than that of all other species of whales, measuring one-third the whale's body length, or approximately twelve to fifteen feet.
Humpbacks will often roll onto their side or back and slowly slap the water's surface with one fin or both fins simultaneously.
www.sailhawaii.com /whales.html   (1201 words)

  
 Whales on the Net - Human/dolphin Interaction at Tin Can Bay
Humpback dolphins and, to a greater extent, bottlenose dolphins, (Tursiops sp.), are known to opportunistically feed by following trawlers in the region (J. McLoud, pers.
Fish for the purpose of hand-feeding the dolphins may be purchased from a kiosk adjacent to the interaction area.
Dolphins were usually first observed at the boat ramp during the hour between 0700h and 0800h.
whales7.tripod.com /policies/garbett   (1452 words)

  
 Humpback Dolphins   (Site not responding. Last check: 2007-11-05)
Classification of the humpback dolphin is in dispute.
In comparison to the rest of KwaZulu-Natal, the size of humpback dolphin population was larger in the shallow, turbid (brown) waters of the Tugela Bank (Durham 1994).
Humpback dolphin groups are generally quite small (on average there are about 7 dolphins in a group) and the groups are not stable.
www.dolphins.org.za /humpback_dolphins_Info.htm   (385 words)

  
 Dolphin Theme by Jim Cornish   (Site not responding. Last check: 2007-11-05)
The Dolphin is the only animal, which through many thousands of years has developed its higher chakras on equal terms with human beings.
The bottlenose dolphin has a medium sized, robust body, a moderately falcate dorsal fin and dark coloration, ranging from light grey to fl dorsally and laterally, with a light belly.
Common dolphins flanks are coloured ochre and grey and they have a distinct dark stripe around the eye.
www.cdli.ca /CITE/dolphin.htm   (608 words)

  
 Indo Pacific Humpback Dolphin
Indo-Pacific Humpbacked Dolphins are brown-grey, pale grey or pink-white on their upper sides, with a lighter underside and the presence of speckles.
Humpback dolphins have a unique way of surfacing; the beak and often the entire head breaks the surface before the body arches tightly, making the hump and dorsal more prominent, and submerging.
Humpback dolphins and, to a greater extent, bottlenose dolphins, (Tursiops sp.), are known to opportunistically feed by following trawlers in the region; indeed both have been observed behaving in this manner in Moreton Bay approximately 150 kilometres to the south.
www.fishntales.com /whalewatching/indo.htm   (1116 words)

  
 Humpback whale - Dolphins And Whales Window
Humpback Whales often "sing," vocalizing a long series of repeated phrases; the vocal patterns are apparently specific to separate populations of whales but may vary from year to year.
Humpbacks sometimes leap clear of the water and may be seen slapping their flukes or a flipper on the surface.
Humpbacks don't feed when they are in warmer regions, which are nutrient poor compared to northern regions.
dolphins.jump-gate.com /whales/humpback_whales.shtml   (609 words)

  
 Aquatic Mammals 30(1) abstracts   (Site not responding. Last check: 2007-11-05)
Interactions between plumbea-type humpback dolphins and a variety of non-cetacean spe- cies have been reported, and in Zanzibar mixed groups of humpback and bottlenose dolphins are common.
Humpback dolphins in China feed on several species of demersal and estuarine fishes, with little evidence of predation on cephalopods or crustaceans.
The conservation of humpback dolphins in Australia's northern coastline will depend on the maintenance of high-quality habitat in areas that are already under some protection, the identification of critical habitats, the inclusion of these habitats in the rezoning initiatives of protected areas, and the reduction of conservation threats.
www.eaam.org /abstracts/am_30_1.htm   (4331 words)

  
 DOLPHINS, BOTTLENOSE DOLPHINS, PACIFIC HUMPBACK DOLPHINS, AUSTRALIAN SEALIFE, AUSTRALIA
Dolphins are warm-blooded mammals, which breathe air, and due to their social nature often live in pods of about 15 dolphins.
Dolphins can stay under the water for about 15 minutes, and can swim to depths of over 100 metres due to their collapsible ribs, which vary according to the water pressure.
Dolphins are in great threat from a wide variety of objects and actions within the water.
www.australianexplorer.com /dolphins.htm   (853 words)

  
 Dolphins of Hervey Bay
Dolphins are often seen swimming through the blue waters of the Bay even from the convenience of the beach or the Urangan Pier.
Dolphins are warm-blooded mammals, which breathe air, and due to their social nature often live in pods of up to 10, sometimes consisting of as many as 50 dolphins.
The Humpback Dolphin or Sousa Dolphin [Sousa chinesis] is usually seen in our local rivers and estuary systems and are often referred to as Estuary or Mary River Dolphins.
www.boxatrix.com /whale/dolphin.htm   (391 words)

  
 CMS: Sousa chinensis, Chinese white dolphin
Estimates ranged from 88 dolphins in spring to 155 dolphins in autumn, with a year-round average of 109.
Parsons (1998b) found that resident populations of Indo-Pacific hump-backed dolphins in Hong Kong were present year-round in the waters to the north of Lantau Island and to the south during the summer monsoon season.
- Parsons ECM (2002a) The behaviour and ecology of the Indian humpback dolphin (Sousa chinensis plumbea) and the Pacific humpback dolphin (Sousa chinensis chinensis).
www.cms.int /reports/small_cetaceans/data/S_chinensis/s_chinensis.htm   (3217 words)

  
 Centre For Dolphin Studies - Photo Gallery   (Site not responding. Last check: 2007-11-05)
Common dolphins (Delphinus delphis) are neritic dolphins (generally found along the continental shelf), which travel and feed in large schools - sometimes numbering in the thousands.
This photo of a humpback dolphin (Sousa chinensis) mother and calf was taken from the Robberg Peninsula on the west side of Plettenberg Bay.
Humpback dolphins live and feed close inshore and can be seen on an almost daily basis in the area.
www.dolphinstudies.co.za /gallery/dolphins.html   (391 words)

  
 Indo-Pacific hump-backed dolphin
The genus Sousa is closely related to the genera Steno (rough-toothed dolphin) and Sotalia (tuxuci) (Ross et al, 1994).
Hump-backed dolphins are slow swimmers (4.8 km/hr) and surface briefly at long intervals (40-60 seconds).
Ross, G.J.B., Heinsohn, G.E. and Cockcroft, V.G. Humpback dolphins Sousa chinensis (Osbeck, 1765), Sousa plumbea (G. Cuvier, 1829) and Sousa teuszii (Kukenthal, 1892).
ourworld.compuserve.com /homepages/jaap/Sousa.htm   (647 words)

  
 Dolphin Info   (Site not responding. Last check: 2007-11-05)
Humpback dolphins feed on fish that live close to the seabed and fish that live on reef but have been known to also eat squid and other such creatures.
Dolphins physically catch their food with simple peg-like teeth which are designed for grasping slippery, fast moving animals rather than for chewing and usually the dolphins generally swallow their prey whole.
A close encounter with a dolphin in the wild is a thrilling experience and one that stays with people for the rest of their lives.
www.dolphindhow.com /dolphininfo1_main.htm   (521 words)

  
 Humpback Dolphins in Mozambique   (Site not responding. Last check: 2007-11-05)
Many of the animals of the population seem to retreat from the coastal waters of Inhaca during the southern African winter months, while bottlenose dolphins immigrate to the area during winter, with an accordingly higher sighting rate.
In summer, abundance of humpback dolphins is higher, whereas that of bottlenose dolphins is lower.
While the foundations for the humpback dolphin conservation project have thus been laid, it is now of utmost priority to acquire and deploy a project boat to carry out comprehensive data collections and regular dolphin observations.
www.delphinschutz.org /english/200403/humpbackdolphins.htm   (186 words)

  
 Endangered Dolphin
In Hong Kong's scenic western harbor, a population of around 120 Indo-pacific Humpback Dolphins, or Chinese White Dolphins are fighting to survive against barrage of threats: pollution, habitat loss, over fishing, and boat traffic.
Because the pink dolphin also feeds on these animals in the marshlands and flooded planes of the Amazon basin it is thought the same pigment accumulates in its skin as it gets older.
More dolphin habitat will disappear when container terminals are built on reclaimed land at Yam O and Lung Kwu Tan, both areas frequented by the dolphins.
www.wiu.edu /users/emp102/DolphinWeb/endangered_dolphin.htm   (737 words)

  
 Atlantic humpback dolphin Description
Atlantic humpback dolphins look very similar to Indo-Pacific humpback dolphins, though the areas that they live in (their ranges of water) do not overlap.
They can also be confused with bottlenose dolphins, though they have an elongated hump in the middle of their backs, and small dorsal fins.
Atlantic humpback dolphins are about 1 metre (39in) long when they are born.
www.wdcs.org /dan/publishing.nsf/allweb/F3A7FB212F54F058802569CF0044FCC9   (318 words)

  
 ABC News: Group Sounds Alarm Over Trapped Dolphins   (Site not responding. Last check: 2007-11-05)
The WWF report said up to 3,000 Spinner dolphins may be caught each year in gillnets, which stretch from the sea floor to the surface and are hard for dolphins to see or detect with their sonar.
Dolphins are also under threat in Indonesia, Myanmar, India's Chilka Lake and Thailand's Songkhla Lake, the WWF said.
Atlantic humpback dolphins face the same fate off the coasts of Ghana and Togo in Africa, as do Franciscana dolphins in Argentina, Uruguay and Brazil, it said.
abcnews.go.com /Technology/wireStory?id=835625   (360 words)

  
 Dolphin Conservation in Mozambique: Save the Indopacific Humpback Dolphins   (Site not responding. Last check: 2007-11-05)
Our project to save the last Indopacific Humpback dolphins living in the Bazaruto Archipelago, which was set to start in early April, has been delayed: a powerful cyclone hit Mozambique's Bazaruto coastal region and the Inhambane province in March, with winds between 170 and 200 km/h and nine-meter waves devastating the region.
About 60 humpback dolphins are estimated to inhabit the waters of the Bazaruto Archipelago.
In the long term, locals are to be integrated in the dolphin conservation work through the development of dolphin-watching ecotourism as an alternative source of income.
www.delphinschutz.org /english/2-03-mazambique.htm   (314 words)

  
 UAE - The Official Web Site - Nature   (Site not responding. Last check: 2007-11-05)
Indo-Pacific humpback dolphins are most readily distinguished by the raised, fleshy hump on the back, from which the backward-curving dorsal fin rises.
The shape of the head bears some resemblance to that of the bottlenose dolphin, although the snout is usually more elongate and the forehead, or melon, less distinct.
The Indo-Pacific humpback dolphin is one of the most frequently observed species of cetacean in the UAE, commonly in groups of between 2 and 20 individuals.
www.centcom.mil /Operations/Coalition/Coalition_pages/UAE/uae%20cd/uaeinteract/nature/marine/mml11.html   (218 words)

  
 Indo-Pacific humpback dolphin - Sousa chinensis: More Information - ARKive   (Site not responding. Last check: 2007-11-05)
The humpback dolphin has an unusual diving posture, first lifting its beak out of the water and arching its back, and then pausing before dipping below the surface or flipping its tail to dive (2).
Despite this sluggishness, many aerial displays are seen; including breaching, when the dolphin leaps out of the water, lob tailing (slapping the surface of the water with the tail) and spyhopping, when the dolphin raises its head vertically out of the water and then sinks below the surface quietly (6).
Indo-Pacific humpback dolphins are at risk from factors that also threaten all other cetaceans, such as entanglement in fishing nets, pollution and the depletion of fish stocks worldwide (6).
www.arkive.org /species/GES/mammals/Sousa_chinensis/more_info.html   (525 words)

  
 HUMPBACK WHALES   (Site not responding. Last check: 2007-11-05)
Humpback whales are found in all of the world's oceans, although they generally prefer near shore and near-island habitats for both feeding and breeding.
Humpback whales become reproductively mature when they are between 4 and 8 years of age.
This fact, together with the fact that the normal breeding-cycle of a humpback whale is two years, helps to explain why the recovery of the humpback whale population is progressing so slowly.
www.earthtrust.org /wlcurric/whales.html   (4658 words)

  
 Fraser Coast Dolphins
The two most common dolphin species in the area are the Bottlenose (Tursiops truncatus) and Indo Pacific Humpback Dolphins (Sousa chinensis).
The Indo Pacific Humpback Dolphins are the main focus of our tour and this is the only location in Australia (in fact we believe the World) that you have the opportunity to come "Face to Face" with this species of dolphin.
The population of this rare dolphin species in the Great Sandy Straight is estimated between 50 -100 individuals in at least 3 pods, one pod in particular has a long history of human interaction.
www.dolphinecotours.com /fraserdolpins.htm   (842 words)

  
 ADW: Sousa teuszii: Information
The humpback dolphin is known for its unusual dorsal fin.
Although the age of sexual maturity is not known for the Atlantic humpback dolphin, most dolphins reach this point between the ages of four to eight years.
Atlantic humpback dolphins are used by people in Mauritania as an aid in netting fish (see Conservation section) (Evans 1987).
animaldiversity.ummz.umich.edu /site/accounts/information/Sousa_teuszii.html   (1006 words)

  
 Oman Whale and Dolphin Research Group February March Survey 2003
Photographs taken of individual dolphins over the past three years can be used to recognise individuals and to augment future studies of the movements and habitat use of these species in the region.
Humpback whales, the other target species of the survey, were frustratingly few and far between.
The dolphin in the background is a bottlenose dolphin – notice that the bottlenose dolphin has a more bulbous "forehead" and a distinct crease between it’s "forehead" and "snout", while the rough-toothed dolphin has a sloping forehead and no crease.
www.whalecoastoman.com /FebMarchSurvey2003.htm   (1224 words)

  
 Humpback Dolphins - Definition up Erdmond.Com
Scientific_classification ia Genus:''Sousa'' Binomial name ''Sousa chinensis, S. plumbea, S. teuszi'' The Humpback Dolphins are the members of the genus ''Sousa''.
The taxonomy of the ''Sousa'' genus is complicated and disputed.
Hump-backed dolphins found in Chinese waters are locally known as Chinese_White_Dolphins.
www.erdmond.com /Humpback_Dolphins.html   (356 words)

  
 SharkFriends Indo-Pacific Humpback Dolphin Page   (Site not responding. Last check: 2007-11-05)
This dolphin lives in the shallow coastal waters of southern and eastern Africa, including the Red Sea, extending east along the coast of China, Indonesia, and northern Australia.
The Humpback dolphins color varies locally, as well as among age groups and individuals.
To find out more about humpback dolphins and the research that is being conducted to study them, particularly in South Africa, please be sure to visit the Richards Bay Humpback Dolphin Project website.
www.sharkfriends.com /hbdolphin.html   (231 words)

  
 Loudmouth Soup: Spinner Dolphins and Humpback Whales   (Site not responding. Last check: 2007-11-05)
He has also studied humpback whales, rough-toothed dolphins, bottlenose dolphins, pilot whales, and other species at eight islands.
Michael discovered that some humpback whales use French Polynesia as a breeding ground; this was previously unknown to science.
Due to 20th century industrial whaling, humpback whales were reduced by 97%.
www.buddaheadonline.com /loudmouthsoup/2005/09/spinner-dolphins-and-humpback-whales.html   (203 words)

  
 Autumn Survey 2002
A number of humpback whales were photographed for individual identification and sampled for genetic analysis, and valuable data were obtained on the distribution of other whale and dolphin species in the areas surveyed.
Although no humpback whale song was detected, the researchers did record one sequence of vocalizations that are believed to be those of a blue whale.
In total, 23 humpback whales were photographed for individual identification, increasing the number of whales in the Oman humpback whale photo-ID catalogue to over 50 individuals.
www.whalecoastoman.com /AutumnSurvey2002.htm   (784 words)

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