Answer Save. contributions by others. Generally known as Ocean Dolphins, Estuarine dolphins and River dolphins. read more. River dolphins are relatively small compared to other dolphins, having evolved to survive in warm, shallow water and strong river currents. A few species of dolphin such as the amazon river dolphin, Ganges river dolphin and Indus river dolphin are known to reside primarily/exclusively in freshwater rivers, but as stated previously the majority of dolphins live in saltwater environments. 9 10 11. These dolphins survive on a diet consisting of small fish, crustaceans, shrimpand crab. Relevance. Part of the reason most species of dolphin do not live in freshwater environments is because most of their prey lives in saltwater. They’d sink in fresh water and eventually drown, because it’s less dense than saltwater is and they have evolved to live in salt water where the salt content aids their buoyancy. The Yangtze River dolphin (Lipotes vexillifer) was finally driven to extinction in the last two decades. 100 surviving in the middle reaches of the Yangtze. read more. They may will live once for all in freshwater in the future, just likely the past. i know there are fresh water dolphins but i want to know if the marine variety can survive in freshwater. It once ranged throughout the Ganges-Brahmaputra-Meghna and Karnaphuli-Sangu river systems of Nepal, India, and Bangladesh, from the Himalayan foothills to the Bay of Bengal. No it can't. First to help clarify this topic there are a few species of dolphin that do live and survive in freshwater such as the Amazon river dolphin, Ganges river dolphin and Indus river dolphin, however most species of dolphin live in saltwater and there aren’t any species of whale that live in freshwater environments. Some species of cetaceans, such as the Amazon river dolphin, live in freshwater their entire lives. Seawater is hypertonic to the fishes living in the ocean, which means that water is continually being sucked out of their bodies. Once rain season comes around and floods large parts of the amazon it provides the dolphin with more opportunities to travel further, meet other dolphins and mate. Catfish and piranha are also considered a regular part of their diet and in some cases they may be observed hunting small turtles. Once the water begins to reside and the rainfall begins to taper down these dolphins return back to their natural habitats and wait for the next rain season to leave their local rivers and travel out once again. FAQ, by Jaap van der Toorn with numerous They can survive for some time, but they will be come Dolphins that are not considered freshwater dolphins may visit or travel through freshwater environments, but they ultimate return back to their saltwater habitat. Dolphins can suffer from parasites and worms, and skin sloughing in fresh water. There are a number of dolphin species that live in fresh water. To sum this up in one sentence freshwater is too shallow to dive in and/or support large pods of dolphins, lacks large supplies of specific foods which may be required by certain species of dolphin to survive and is too small of an environment for most dolphins to roam around freely. This traveling and migration period often lasts for several months while the opportunity to leave their local habitat exists. River dolphins are a very widespread group of fully aquatic mammals that reside exclusively in freshwater or brackish water. Salt water species don’t do well in fresh water. Who knows, perhaps one day some bottlenose dolphins will live completely in fresh water. 0 0. Dolphins are marine mammals and compose about half of the 80 – 90 known species of cetacea recorded so far. Can dolphins live in freshwater? Ocean dolphins are salt water creatures, estuarine dolphin can live insalt to brackish and sometimes into fresh water, while River dolphins can only live in freshwater. species that can be found both in fresh water (the Amazon They all belong to the river dolphin families. 73 views View 2 Upvoters A few species of dolphin such as the amazon river dolphin, Ganges river dolphin and Indus river dolphin are known to reside primarily/exclusively in freshwater rivers, but as stated previously the majority of dolphins live in saltwater environments. Though often associated with the ocean, dolphins, such as the pink river dolphin, can sometimes live in freshwater. This species has special adaptations: a more developed echolocation system and a greater number of vibrissae (whiskers) for navigation. The other half is made up primarily of whales and a few species of porpoise. fluviatilis). Can marine mammals (i.e. Although scientists and marine biologist understand that all mammals, including marine mammals such as whales, dolphins and porpoises require the consumption of water to stay hydrated and survive, they are not 100% sure how dolphins consume their water while preventing themselves from becoming dehydrated from the high levels of salt in the water. Evolution is in constant flux. This species has special adaptations: a more developed echolocation system and a greater number of vibrissae (whiskers) for navigation. There is one species that can be found both in fresh water (the Amazon river) and in coastal sea waters: the … River dolphins are a very widespread group of fully aquatic mammals that reside exclusively in freshwater or brackish water. P.G.H.Evans (1987) Marine biologists are certain that the biology of the whale cannot survive indefinitely in brackish water, and that at most, few whales in fresh water will survive more than a month. This article is from the Dolphin the Platanistidae (Ganges and Indus river dolphins), the Best Answers. They are often seen swimming at or near the bottom of the river hunting for crustaceans and may use their beak to capture other prey that is hiding in hollow logs or other objects. Ignoring the moral implications they could be in a swimming pool if you fed it. after a while their skin will start to slough (like our own Verified. See Answer. There are a number of dolphin species that live in fresh water. The Endangered Ganges river dolphin, or susu, can only live in freshwater and is essentially blind. Species such as the amazon river dolphin are known to inhibit the shallow waters of the amazon river during dry season. This is more due to necessity however' their ideal environment is salt water, that is where their food supply is. There is one If a saltwater plant was placed in a freshwater aquarium, it will not survive because it belongs in the saltwater environment. Wiki User Answered . In general, salt water species don't do well in fresh water. The Gland, Switzerland-based group cites three other freshwater dolphin species -- the Amazon river dolphin, the South Asian river dolphin and the Yangtze River dolphin in China, though it … They range in size from the 5-foot (1.5 m) long South Asian river dolphin to the 8-foot (2.4 m) and 220-pound (100 kg) Amazon river dolphin. Salt water cetaceans could definently survive short term. Who knows, perhaps one day some bottlenose dolphins will live completely in fresh water. It's like try to remove pole pinguin into tropical area. Although they can survive for some time, they will be exhausted by the lack of buoyancy in fresh water. These are: the Platanistidae (Ganges and Indus river dolphins), the Iniidae (the boto or Amazon river dolphin) and the Pontoporiidae (the baiji and the franciscana). While river water may not always be the cleanest and clearest, it still moves causing it to replace oxygen and nutrients. They all belong to the river dolphin families. To survive, saltwater fishes continually drink lots of water to compensate for water loss caused by osmosis. Some species of cetaceans, such as the Amazon river dolphin, live in freshwater their entire lives. In South Asia are found the South Asian river dolphin (Platanista gangetica) and the Indus river dolphin (Platanista gangetica minor).The eyes of these dolphins are as small as a pinhead. Best Answers. there are 3 types of dolphins. So, my answer is yes and no. The Natural History of Whales and Dolphins. When their food migrates to a new location some species of dolphin can often be found migrating to new areas in order to maintain their food supply. Christoper Helm Publishers, London. I’ve heard that some bottlenose dolphins are easily getting adapted to freshwater environments, just like the Portuguese dolphins from Tagus, Sado and Douro river, and some other dolphins from Potomac River, in America, and from Swan River, in Australia. Freshwater environments may lack the healing properties necessary to assist dolphins as quickly when recovering from various wounds and/or attacks. Dolphins that are not considered freshwater dolphins may visit or travel through freshwater environments, but they ultimate return back to their saltwater habitat. Can dolphins live in both salt and fresh water? Saltwater also allows dolphins to make much deeper dives which are sometimes necessary when hunting for large quantities of food or specific prey. Freshwater fish and saltwater fish survive according to how much salinity their body can sustain. In fact it would be extremely difficult for dolphins to find large quantities of certain foods in freshwater environments, especially if large pods of dolphins were hunting together and needed to make sure each dolphin had a sufficient supply of food. Not only would a freshwater dolphin not survive in a swimming pool; it also wouldn’t last long in it, no more than two minutes at least. Part of the reason most species of dolphin do not live in freshwater environments is because most of … dolphins & whales) survive in a fresh water environment? There are a lot of diferent species of animals that can survive in fresh water like turtle, frogs, and fish but one of the rarest is the freshwater dolphin.The Freshwater dolphin swim in the earths mightiest rivers including the Ganges, Indus, Yangtze, Mekong, and amazon, growing to about 2.4 meters long and may be white, pink, brown, yellow, black and grey. See Q and A number 19. http://www.imms.org/dolphinfaq.php. There are numerous freshwater species of Dolphin. Freshwater cetaceans (including five dolphin species and a porpoise) have declined dramatically in numbers and range, especially in Asia. river) and in coastal sea waters: the tucuxi (Sotalia Pontoporiidae (the baiji and the franciscana). 2.17 Can dolphins live in fresh water? Saltwater also contains certain healing properties, salts and minerals which help to clean out infections and assist dolphins in the healing of various cuts and wounds which may occur due to predators attacking them or injuries from sharp objects in the environment. The threats to freshwater cetaceans are diverse, longstanding, and difficult to assess and manage. Tricia Christensen . Of the 40 + known species of dolphin most species are not known to live in freshwater environments; at least not for long periods of time. In saltwater environments dolphins may be more restricted and less likely to migrate than those in freshwater environments. Disclosure Policy | Privacy Policy | Copyright © 2020 WhaleFacts.org. 3 Answers. Saltwater also contains certain healing properties, salts and minerals which help to clean out infections and assist dolphins in the healing of various cuts and wounds which may occur due to predators attacking them or injuries from sharp objects in the environment. 2007-12-17 07:30:09. The Irrawaddy dolphin (Orcaella brevirostris) occasionally frequents freshwater rivers of Southeast Asia (Mekong, Irrawaddy, etc. ), but is not a freshwater dolphin strictly speaking. wahyu. Favorite Answer. Part of the reason most species of dolphin do not live in freshwater environments is because most of their prey lives in saltwater. These are: 1 decade ago. Top Answer. While river water may not always be the cleanest and clearest, it still moves causing it to replace oxygen and nutrients. 4. Asked by Wiki User. Source: whalefacts.org. skin after spending a long time in the bathtub). Evolution is in constant flux. Some dolphins also prefer to have a lot of space to swim around and in most cases that space can only be found in the salty ocean. exhausted (since they have less buoyancy in fresh water) and Several species exhibit sexual dimorphism, in that the males are larger than the females. There are a few species, however, like the South Asian river dolphin and the Amazon river dolphin, or boto, that live in freshwater streams and rivers. Also, after a while their skin will start to slough as the fresh water does not support their skin or eyes and they can … They have long been documented as surviving in fresh water for several weeks before moving back to salt water. 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