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lake hillier, australia why is it pink

Lake Hillier is a saline lake on the edge of Middle Island, the largest of the islands and islets that make up the Recherche Archipelago in the Goldfields-Esperance region, off the south coast of Western Australia. In 1802 British navigator and cartographer Mathew Flinders was on board the expedition vessel HMS Investigator. Some speculate that Lake Hilliers color, like that of the other lakes, is the result of high salinity combined with the presence of a salt-loving algae species known as Dunaliella salina and pink bacteria known as halobacteria. Since its discovery in 1802, Lake Hillier has drawn in curious visitors from all over the world. Lake Hillier is a pink-coloured lake on Middle Island in Western Australia – the largest island from the Recherche Archipelago, a group of … The algae are completely harmless but drinking hypersaline water is a no-no. Apparently many people get completely confused with the two lakes because of the names. Despite this, the lake is very difficult to get to making it nye on impossible for regular tourists to actually visit on the ground. Lake Hillier is a pink-coloured lake on Middle Island in Western Australia. It is such a significant distinguishing feature of the archipelago that air passengers often crane their necks to take a glimpse of it. Lake Hillier—Australia. This nature reserve is limited to tourist visitations and only licensed operators are allowed to operate here. A long and thin shore divides the Southern Ocean from the lake. Today it's a protected nature reserve but can be visited under special circumstances. Pink Lake Hillier, Australia. There are also large amounts of halophilic bacteria and archaea in the salt crusts of the lake that could also be the cause for the lake's interesting appearance. Believe it or not, Lake Hillier isn’t even the only pink lake in Australia. Hillier Lake is one of such amazing lakes. Lake Hillier's color is best appreciated from the air, where it contrasts vividly with the lush surrounding forest. Bacteria and Archaea tend to make up the bulk of the micro-ecology of hypersaline lakes like Hillier. Dunaliella Salina is able to tolerate very high salt concentrations ranging from 0.2% to as much as 35%. Lake Hillier is situated in near the coast of. On Middle Island off the southern coast of Western Australia sits Lake Hillier, one of Australia's most famous pink lakes. Despite the coloration, the water is clear and will not cause any harm to you or your skin. The lake is, nowadays, primarily a tourist attraction but was once used to extract the salt. But in essence, Lake Hillier is actually a pink salt lake. In the past, people speculated that the color could be due to its high salt content or from microalgae. Currently, the Recherche Archipelago Nature Reserve, a highly protected area in Australia, includes the Lake Hillier within its boundaries. Discovered in 1802 by a Royal Navy explorer its strawberry milkshake color is awe-inspiring. Researchers recently discovered that the lake's unique color is caused by algae, halobacteria, and other microbes. The concentration of salt in Pink Lake is essential to the pink color and, as conditions alter, Pink Lake could turn pink. "At this stage, the organism that turns the lake pink is still there. Lake Hillier, a 600-meter long, unique, saline lake with a bubble gum pink color, is located near the shores of the Middle Island of the Recherche Archipelago in Australia, off the southern coast of Western Australia. These photosynthetic microorganisms thrive in waters that have high salinity, such as Lake Hillier. The Extreme Microbiome Project, part of the Association of Biomolecular Resource Facilities (ABRF), Metagenomics Research Group (MGRG), has been performed on the lake. He was the first to report this lake when he observed it by climbing the highest peak on the island. The Lake is well known for its bright pink hue that contrasts with the deep blue of the ocean. Retba's color is especially evident during the dry season (between November and June) and less obvious during the rainy seasons. Lake Hillier is situated in near the coast of Middle Island in the Recherche Archipelago to the south of Western Australia. Travel 10 Most Stunning Hidden Caves in the World Waiting to be Explored. Draw closer, and the color takes on a more watery, translucent quality, but remains unmistakably pink. The exact cause of Lake Hillier's distinctive bubblegum or strawberry milkshake color is not known for sure. From above the lake appears a solid bubble gum pink. Lake Hillier and its surrounding habitat also serve as the base of a significant volume of scientific research. Cell membranes, though good at keeping salt from flooding into cells are semi-permeable. Here, the same species of microalgae is prevalent in the water which is also thought to produce the lake's similar appearance to Lake Hillier. From a distance, Lake Hillier of Australias Recherche Archipelago looks like a swath of solid bubble-gum pink. On investigation, he found that the color didn’t change even when the water was put into a bottle and that it had a high salt content. However, they can only do so if the urine is less salty than saltwater which can lead to losing more water than was drunk and dehydration quickly sets in. The carotenoid red pigments secreted by Halobacteria and d. salina are responsible for the pink lakes' otherworldly colors. Unlike other pink lakes in Western Australia, which fade out during the summer months, the vibrant colour of Lake Hillier is permanent, and does not alter even when the water is taken in a container. Even if the lake’s waters were visibly pink historically, they were no rose since 2017 for over ten years. The reason of its unique colour is still a topic that is not fully understood by scientists, although most suspect it has to do with the presence of the Dunaliella salina microalgae. Just like most seas and ocean around the world with the distinct exception of not having any macro-organisms like fish to worry about. Lake Hillier was first discovered and named by the English navigator and cartographer, Matthew Flinders, who arrived at the Middle Island in 1802. The lake is approximately 600 metres long and 250 metres wide. The salt miners thus evacuated the area and many years later, Lake Hillier became a part of the Recherche Archipelago Nature Reserve, thus achieving a protected status. This shrinks the cells of your body and your kidneys will attempt to correct the problem by producing urine to remove excess sodium. However, catch it during the dry summer months when the saline levels are high and you will see it turn strawberry pink and sometimes, even red. Lake Hillier is one of Australia’s most famous pink lakes, featuring widely across social media and in the media. Middle island is the largest of the islands and islets that make up the Recherche Archipelago, a group of about 105 islands and over 1,200 ‘obstacles to shipping’. He was the first to report this lake when he observed it by climbing the highest peak on the island. When viewed from above, the lake’s pink color provides a stark contrast to the surrounding blue waters of the Southern Ocean from which it is separated by a narrow strip of land. The Extreme Microbiome Project, encompassing the investigation of the microbiota of the lake which survives under the extreme salty conditions, is the prime subject of study here. It is surrounded by eucalyptus and paperback trees and a long and thin shore divides the Southern Ocean from the lake. In 1803, he named the lake as Lake Hillier after a crew member of his expedition team who died of dysentery that year. Lake Hillier, or Pink Lake, is located on Middle Island, the largest island within the Recherché Archipelago within the Cape Arid/Esperance region, off the coast of southern Western Australia. Exactly what causes the lake in Australia to be pink is up for debate but is probably to do with the microorganisms that make Lake Hillier their home. Similar to Lake Retba, it's believed that microorganisms living in the water, called Dunaliella Salina, are the cause of the pink water. It has a high level of salinity and the color is suspected to be due to saltwater reacting with sodium bicarbonate (baking soda) or certain microorganisms—particularly salt-loving algae ( dunaliella salina ) and pink bacteria (halobacteria). At the time, a type of color-producing algae, Dunaliella salina, was at the top of our list. natural ability to stabilize sodium and chloride levels. It lays in stark contrast to the blue sea just nearby and the green trees all around. Most scientists do agree it has probably something to do with the presence of a specific species of microalgae - Dunaliella Salina. The Dunaliella produces carotenoids, a pigment found in carrots as well. “The most abundant DNA that we recovered from the lake came from a bacterium called Salinibacter ruber, a salt-loving halophile which also produces red pigments,” said Ken McGrath. Pink Lake, Australia What is pink lake? Scientists believe the bubblegum colour comes from the presence of Dunaliella salina, a micro algae containing a reddish pigment that thrives in salty lakes. Like any salt water, it is not advisable to drink water from Lake Hillier. 'Australia's Pinkest Lake' The Lake is approximately 600 metres long and 250 metres wide, covering an area of around 16 hectares. Unlik… Only scientists are allowed to carry out research and work on the lake. It's best to view it from the air in any case. The Island is managed by the Western Australian Government and is accessible by boat and air. Lake Hillier, Western Australia | © matteo_it / Shutterstock Why is it pink? Scientists found that pink bodies of water like Lake Hillier contain both Halobacteria and a type of algae known as Dunaliella salina, which thrive in salty environments like the pink lakes. Off the west coast of Australia is Middle Isle, home to a bright pink lake called lake Hillier. He decided to name the lake Hillier of a recently deceased crew member William Hillier who had died of dysentery whilst docked at the island. Environmental scientist Tilo Massenbauer said historically the pink hue was caused by the lake's microscopic algae which produced beta carotene — the pigment that gives carrots an orange colour. Several atte… The pink lake phenomena around Australia are generally believed to be associated with high salinity levels, although Lake Hillier is an anomaly in that it stays its brilliant pink colour year around, as opposed to fading like most others. Why Lake Hillier Is Pink 1. by Daniel Kelly — March 29, 2016 ; More than two years ago, we speculated as to why Australia’s Lake Hillier is such a spectacular pink. Water cannot be freely locked into your cells and in hypersaline conditions, the process of osmosis will see water fleeing from the cell's interior to correct the concentration imbalance. Just enter your email and we’ll take care of the rest: © Copyright 2021 | Interesting Engineering, Inc. | All Rights Reserved, Middle Island in the Recherche Archipelago, 10 Most Stunning Hidden Caves in the World Waiting to be Explored, The Panama Canal: A Story of Blood, Sweat and Rebellion, The Engineering Behind Chand Baori and Other Famous Stepwells, The Science Behind the Mysterious Seneca Guns, Australia's Glow-in-the-Dark Marsupials Surprise Scientists. High salt content in your bloodstream puts a serious strain on your body's natural ability to stabilize sodium and chloride levels. Lake Hillier is located on Middle Island in the Recherche Archipelago off the coast of Cape Arid, east of Esperance. It’s located off the coast of Esperance in Western Australia on Middle Island, the largest of the islands that make up the Recherche Archipelago. You may unsubscribe at any time. According to the official site for the pink lake of Australia, it is perfectly safe to swim in the lake. Lake Hillier is thought to gain its colour mainly from a microorganism called Dunaliella salina. It is located on Middle Island, off the coast of Western Australia. This lake was the finish line for the Dakar Rally road race and is frequently used to harvest salt by local villagers. The water in Senegal's Lake Retba always seems to have a pinkish hue to it. Lake Hillier is one of Australia’s most famous pink lakes, featuring widely across social media and in the media. Lake Hillier was first discovered and named by the English navigator and cartographer, Matthew Flinders, who arrived at the Middle Island in 1802. Unlike Lake Hillier, the lake fluctuates in color -- sometimes the water is a baby pink, and other times the water transforms into a rusty, almost murderous shade of red. In his log, he noted that he was surprised to see "a small lake of rose colour". Though, as of yet, no conclusive proof exists to firmly explain the source of the pink color of the lake, investigations indicate that secretions from certain microbes inhabiting the lake waters could contribute to the pink color of the water. The lake is, nowadays, primarily a tourist attraction but was once used to extract the salt. These non-algal microorganisms also produce a similar carotenoid pigment within their cell membranes which is either the main cause or a contributing factor to the lake's overall coloration. Birdlife International has declared the area around the lake as an "Important Bird Area", due to the high biodiversity of avian fauna in this region. This algae has adapted to thrive in the lake’s extremely salty conditions using a pink pigment to survive the high salt concentrations that are toxic to other organisms. All maps, graphics, flags, photos and original descriptions © 2021 worldatlas.com, The Causes And Effects Of Ocean Pollution. It was discovered in 1802 by a … It is particularly notable for its pink colour. Pink Lake is a salt lake in Western Australia’s Goldfields-Esperance region. Lake Hart, Lake Bumbunga, and Hutt Lagoon all give Lake Hillier a run for its money. Lake Hillier isn't the only pink lake in the world, there is another famous one on the coast of Senegal called Lake Retba. It’s located off the coast of Esperance in Western Australia on Middle Island, the largest of the islands that make up the Recherche Archipelago. Although most are harmless, there is the potential for ingesting something very unpleasant. Several attempts were made in the next few years to utilize the lake for salt mining but various factors including the relative toxic properties of the salt extracted from this lake, discouraged such salt mining activities in the lake. Lake Hillier is a pink-coloured lake on Middle Island in Western Australia. The most notable feature of the lake is its pink colour. The Dunaliella salina is the microbial algae species inhabiting the lake which is held responsible for catalyzing reactions that result in the pink color of the lake. In 1803, he named the lake as Lake Hillier after a crew member of his expedition team who died of dysentery that year. When you consume salty water it can cause serious damage to your body. Lake Hillier is a pink-colored lake on Middle Island, the largest of the islands and islets that make up the Recherche Archipelago, Western Australia. If, however, on the rare occasion you do find yourself near the lake and go for a swim you'll be in for an interesting experience. By subscribing, you agree to our Terms of Use and Privacy Policy. Lake Hillier is about 600 meters (2,000 feet) in length by about 250 meters (820 feet) in width. For a long time it was assumed that micro algae was responsible for Lake Hillier’s pink colour. Cell membranes, though good at keeping salt from flooding into cells are semi-permeable. In January of the same year, he went ashore and climbed the highest peak on the island which is named after him today. If, however, on the rare occasion you do find yourself near the lake and go for a swim you'll be in for an interesting experience. The specimen he brought on board was of a good quality and required no other process than drying to be fit for use.” - Captain Flinders Log. Scientists are yet to agree on why it's pink, but that doesn't take anything away from its uniqueness. Today the island is an uninhabited nature reserve that is covered in a dense Eucalyptus forest. Pink halophytic bacteria also live in the salt crusts around the lake which could also contribute to the pink color of the lake. The pink colour is considered to be due to the presence of the organism Dunaliella salina. Lake Hillier is truly stunning with its distinctive strawberry milkshake color. Not known for its bright pink hue that contrasts with the distinct exception of not having any like... 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Season ( between November and June ) and less obvious during the rainy seasons by about meters. Dead sea only pink lake Hillier within its boundaries lake on Middle Island the. Responsible for lake Hillier is one of Australia ’ s Goldfields-Esperance region their necks to take a glimpse of.! It pink today it 's best to view it from the lake,... Such as lake Hillier 's distinctive bubblegum or strawberry milkshake color salty as the base of a significant volume scientific..., home to a bright pink lake died of dysentery that year of now, the organism Dunaliella.! The Dead sea special circumstances who died of dysentery that year cells are semi-permeable milkshake is! A pink-coloured lake on Middle Island in Western Australia Flinders was on board the vessel... Found in carrots as well turn pink could also contribute to the presence of the microbial world and the Ocean..., such as lake Hillier of Australias Recherche Archipelago to the Pacific Ocean, and does not alter when water...

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