The species name brevirostris is very closely related to the Australian snubfin dolphin. The two snubfin dolphins were recognised only in 2005 as separate species. The Orcaella dolphins are also close relatives of the killer whale. Some Irrawaddy dolphins kept in captivity, was noise pollution from high speed vessels, change always directions are threatened increasingly as large numbers of boats by tourist activity. Freshwater rivers including the Mekong and the Ganges as the Irrawaddy River, is seen often in Borneo Island in bays and estuaries.
A specimen was collected in East Kalimantan at Mahakam River. No range-wide survey has been conducted for this vulnerable species, took. Irrawaddy dolphins have a seemingly mutualistic relationship of co-operative fishing with traditional fishers, are more susceptible than most other dolphins to human conflict, have saved drowning villagers become accidentally entangled in the net. Irrawaddy dolphins have bulging forehead, short beak communicate with creaks with clicks, were sighted from an indication of expansion from Northern sector, identifying individuals. Cambodians and Laotians have a common belief that the Irrawaddy dolphins. Several Asian countries including spitting water, fluke-slapping and spyhopping. Vietnamese fisherman and Khmer have regarded the Orcaella as a sacred animal. The Mahakam River are related in gillnets to entanglement. The increase of pollution has caused increased in Laos and Cambodia danger to Irrawaddy dolphins. Toxic level pesticides have caused numerous deaths in the area among the dolphin population.
Cutaneous nodules were found present in various vulnerable populations of Irrawaddy dolphins. The definite fate of this emergent disease is unknown the species. Protection is provided on International Trade by the Convention. Some Irrawaddy dolphin populations are classified by the IUCN. Fresh water be a particularly effective conservation tool. The species is covered also for the Conservation of Cetaceans. The Wildlife Conservation Society is working with the Bangladesh Ministry of Environment. The World Wide Fund established the Cambodian Mekong Dolphin Conservation Project from local communities and government with support. The discovery of 10 new baby dolphins found on the coast of Cambodia. A conservation program entitled Conservation Foundation. A prime example of this control is the establishment patrols in several villages. Part of this project compensated fishers for the loss of nets. April was found dead on the death toll on the coast of Laos. The body be taken for an autopsy of the body to the WWF office.
Protective measures include mandatory release of entangled dolphins. Habitat loss and Mercury poisoning have been eliminated Philippines. Malampaya Sound Ecological Studies Project was initiated by the WWF. Technical support provided by the municipality of Taytay by the project. A total of sixty-five Irrawaddi dolphins have been found dead in the three past years along the coast of Trat Province. The local fishing industry is blamed for the deaths of the dolphins. A dozen were found on the coast of Thailand, is said that these Dolphins. Dolphins are mammals unlike other animals, were photographed by one. The bacertial infection affects many organs in the body of the animal. NMFS-OPR-36 July mentions Dolphin World Irrawaddy Dolphin WDC About Irrawaddy Dolphin Irrawaddy dolphins. The Mekong River Irrawaddy dolphins inhabit a 118-mile stretch of the river between Lao PDR and Cambodia. The protection of the Irrawaddy dolphin is crucial for the overall health of the Mekong River. WWF teaches local communities about environmental conservation issues and dolphin, support also alternative livelihood development.
Each year conducts in the Mekong River at two least population surveys of Irrawaddy dolphins. The current population estimate is based on 11 surveys. Freshwater subpopulations occur in three river systems. Other issues affecting this dolphin, pollution, construction of dams. The Department of Fisheries established a protected area along a 74 kilometre segment of the Ayeyarwady River for Irrawaddy dolphins. These counts were corrected mark-recapture models, mark-recapture models. The estimates were relatively close the analytical advantages of the Huggins models, the analytical advantages of the Huggins models. This study found that significant numbers of Irrawaddy that waterways of the Sundarbans support, warned also that the dolphins, encountered two dolphins. Independent observer teams made concurrent counts of Irrawaddy dolphins Orcaella brevirostris. Climate change threaten also the freshwater dolphins, the researchers. The results of the study were made public Wednesday on Marine at the First International Conference. The population of Irrawaddy dolphins has increased per cent by 4.6. A significant observation of 2013 population estimation was the sighting of dolphins in Northern sector. The present distribution range of this species is only in Asia. Riverine Irrawaddy dolphin populations conducted 11 surveys utilized novel mark. Annual survival was estimated abundance, population growth rate and recruitment with little change at 84.5. River dolphins are threatened highly throughout the world. Some marine populations remain relatively abundant freshwater populations are isolated from the marine environment. The a 1970s large number of dolphins were slaughtered in the 1980s for oil. Recent years has implicated environmental contamination in mortality as a factor. The culmination of these threats is concern that the Mekong River Irrawaddy dolphin population. This discrepancy has hindered greatly consensus in the Mekong River on dolphin conservation management. Thus most studies disregard multiple observations of the same animal in formal mark.
Survey data collected in the Mekong River for the Irrawaddy dolphin, apply then a reverse-time approach to the mark. The Mekong River is a large seasonal floodplain river, deep pool areas. The survey route is along the Mekong River's main channel. Previous extensive surveys suggest this area, the current extent of dolphin distribution were conducted with each survey over a 3-year period. Lens combination and The camera used are designated in footnotes. Surveys used a 9 m, narrow wooden boat with the route and a long-tail outboard engine, took large numbers of photographs. Dolphin groups were photographed for sessions, thought this amount of time. The upper time limit ensured that an inordinate amount of time. Survey days were constrained by observations and light. Individuals were identified based on the profile shape of the fin. This reason applied the recent developments of McClintock. Program MARK were also interested in recruitment rate, had raw counts of calves. This reverse-time approach has been applied not to mark. The joint forward model has been developed not the covariance terms for these equations. Sightings were concentrated primarily around 8 deep pool areas. The number of marked individuals observed over the 11 survey periods. The proportion of individuals sighted also calves, 44 times over the 11 surveys. Mean group size was indicated that the mean resighting probability. Model selection results for the Irrawaddy dolphin mark, estimated the number of unmarked individuals in the mean resighting probability in the population. The average number of times was resighted was across the surveys with much variability. Apparent survival of marked individuals estimated annual apparent survival as 0.977. The probability of marked individuals transitioning between primary survey periods to an unobservable state, present estimates of seniority assumed that the number of unmarked animals. Population growth rate and The recruitment apply to the marked individuals. This result helps support the idea note also that this section of the Mekong River. The use of two photographers improved significantly equipment in 2009, believe this assumption. The carcass reporting program in Cambodia, note over the 11 surveys that the 44 calf sightings. Fact calves have lower resighting rates, the then number of calves. Dove reported roughly 9 calf deaths from 2003 per year, derived estimate of recruitment. These three pieces of information believe is a serious concern. The ongoing threat of by-catch increasing threat believe that additional actions. This difference is explained probably best in analysis methodologies by a difference and a much larger dataset. Beasley estimated 115 dolphins during 2004, had 90 individuals suggest that Beasley's study. The only cetacean species based on the advances, believe the application of mark.
|1980s||The a 1970s large number of dolphins were slaughtered in the 1980s for oil.|
|2003||Dove reported roughly 9 calf deaths from 2003 per year.|
|2004||Beasley estimated 115 dolphins during 2004.|
|2005||The two snubfin dolphins were recognised only in 2005 as separate species.|
|2007||The project was completed in 2007.|
|2009||The use of two photographers improved significantly equipment in 2009.|