But with continued work from WWF and other organizations, it’s hopeful that this remarkable species will continue to survive. 2010-12-15 23:42:20 2010-12-15 23:42:20. Save my name, email, and website in this browser for the next time I comment. The dorsal fin is rounded and located around the middle of its back. Because they live in the river, which is a confined area, they’re especially affected by human activity. Your email address will not be published. Unlike most dolphins, which live only in salt water, Irrawaddy river dolphins can live in either fresh water or salt water. Dolphins can be nocturnal or diurnal, and they can also display a variation between nocturnal and diurnal behavior. Areas that supply large quantities of marine mammals such as Alaska make excellent hunting grounds for killer wales that thrive off of marine mammal meat while various locations in the North Pacific offer large quantities of fish and squid for non marine mammal eating killer whales. The Irrawaddy dolphin is a sacred animal in Cambodia and an important source of jobs and eco-tourism dollars, but it could soon be extinct in the Mekong. The IUCN also has other initiatives – such as the Save Our Species fund (which recently gave WWF a grant to help equip and train rangers to monitor gillnet fishing in the Mekong). Bony fish and fish eggs, cephalopods, and crustaceansare taken as food. Dolphin feeding habits are pretty much flexible meaning they can quickly adapt to the conditions in their habitats. Aquatic mammals including dolphins, whales and porpoises are all cetaceans.). As their family suggests, these dolphins are found in the world’s mighty rivers and have their habitats in the fresh waters, especially those of South America and Asia. Top Answer. The Mekong River population is listed as Critically Endangered. The Irrawaddy dolphin is not classified as a river dolphin although some populations do live exclusively in freshwater rivers hundreds of miles away from the coast. Presently, 43 dolphin species have been described, and these have further been grouped into two families, which includes the river and oceanic dolphins. Note: Both the killer whale and false killer whale belong to the dolphin family despite the world “whale” being a part of their name. Marine Irrawaddy dolphin populations are found in patches as they prefer to live in sheltered coastal waters where freshwater is flowing in, such as river deltas, mangrove channels, and estuaries. They can be found globally, especially in the shallow sea waters and powerful rivers. Irrawaddy dolphins also live amongst Ganges River dolphins (South Asian river dolphins) in the Sundarbans mangrove forest of Bangladesh and India. Learn how your comment data is processed. The second strategy is dubbed corralling. With the help of over 7,000 of the world’s best wildlife filmmakers and photographers, conservationists and scientists, Arkive.org featured multi-media fact-files for more than 16,000 endangered species. Dolphins are an excellent source of nutrition for predators, considering they have exceptionally high-fat content. Despite many protections including a moratorium on whaling since 1986, many species of cetaceans continue to be threatened – with some on the verge of extinction. When did organ music become associated with baseball? The bait ball technique is used to capture schools of fish and requires a pod of dolphins to swim around in a circle around the school of fish, which forces the fish to herd themselves into a tightly knit ball allowing them to become easy prey. 3. The dolphins often dive deeply just after the net is thrown and create turbulence under the surface around the outside of the net. Wildscreen's Arkive project was launched in 2003 and grew to become the world's biggest encyclopaedia of life on Earth.