Lake Hillier—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. The vibrant colour is permanent, and does not alter when the water is taken in a container. Despite this, the lake is very difficult to get to making it nye on impossible for regular tourists to actually visit on the ground. At the time, a type of color-producing algae, Dunaliella salina, was at the top of our list. From a distance, Lake Hillier of Australias Recherche Archipelago looks like a swath of solid bubble-gum pink. The pink colour is considered to be due to the presence of the organism Dunaliella salina. Unfortunately the Pink Lake has lost its colour over the years due to many contributing factors such as; the salt mining ceased in 2007, a new construction of a railway and highway nearby caused the loss of the colour. All maps, graphics, flags, photos and original descriptions © 2021 worldatlas.com, The Causes And Effects Of Ocean Pollution. From above the lake appears a solid bubble gum pink. Travelers can, on occasion, be dropped off on Middle Island from helicopter rides and cruise ships but these tend to view the lake from the shore. The exact cause of Lake Hillier's distinctive bubblegum or strawberry milkshake color is not known for sure. Off the west coast of Australia is Middle Isle, home to a bright pink lake called lake Hillier. 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. 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’s neighbour is the infamous Pink Lake. Lake Hillier, Western Australia | © matteo_it / Shutterstock Why is it pink? Lake Hillier and its surrounding habitat also serve as the base of a significant volume of scientific research. The lake is best appreciated from the air in any case where you can really see its vivid pink color in contrast with surrounding forests and the Indian Ocean. 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’. In 1803, he named the lake as Lake Hillier after a crew member of his expedition team who died of dysentery that year. natural ability to stabilize sodium and chloride levels. He stepped onto Middle Island, climbed the highest peak and saw a bright pink lake. 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. 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. 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. In 1802 British navigator and cartographer Mathew Flinders was on board the expedition vessel HMS Investigator. Lake Hillier is thought to gain its colour mainly from a microorganism called Dunaliella salina. 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. 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. Apparently many people get completely confused with the two lakes because of the names. The Island is managed by the Western Australian Government and is accessible by boat and air. Lake Hart, Lake Bumbunga, and Hutt Lagoon all give Lake Hillier a run for its money. 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. 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. The Extreme Microbiome Project, part of the Association of Biomolecular Resource Facilities (ABRF), Metagenomics Research Group (MGRG), has been performed on the lake. 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. 'Australia's Pinkest Lake' The Lake is approximately 600 metres long and 250 metres wide, covering an area of around 16 hectares. Pink Lake, Australia What is pink lake? They duly filled up their stock with salt from the shores of the lake. Pink Lake Hillier, Australia. The concentration of salt in Pink Lake is essential to the pink color and, as conditions alter, Pink Lake could turn pink. Retba's color is especially evident during the dry season (between November and June) and less obvious during the rainy seasons. The carotenoid red pigments secreted by Halobacteria and d. salina are responsible for the pink lakes' otherworldly colors. This lake was the finish line for the Dakar Rally road race and is frequently used to harvest salt by local villagers. Even if the lake’s waters were visibly pink historically, they were no rose since 2017 for over ten years. When you consume salty water it can cause serious damage to your body. Even when the water is scooped up into a … Draw closer, and the color takes on a more watery, translucent quality, but remains unmistakably pink. 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. While Australia has many seasonal pink lakes, they are all on the mainland, and while many are very easily accessible, none are quite as impressive, or anywhere near as pink as Lake Hillier. Now, the lake and its surrounding habitat became accessible only to scientists working in the region, while the public visitation to this area was highly restricted. Researchers collected lake samples to identify algae, archaea, and bacteria Scientists believe the bubblegum colour comes from the presence of Dunaliella salina, a micro algae containing a reddish pigment that thrives in salty lakes. Lake Hillier is a pink-coloured lake on Middle Island in Western Australia. You may unsubscribe at any time. Discovered in 1802 by a Royal Navy explorer its strawberry milkshake color is awe-inspiring. Hillier Lake is one of such amazing lakes. The lake lies right next to the Pacific Ocean, and only a narrow coastline separates them. Lake Hillier isn't the only pink lake in the world, there is another famous one on the coast of Senegal called Lake Retba. The lake is approximately 600 metres long and 250 metres wide. Lake Hillier is a pink-coloured lake on Middle Island in Western Australia. 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. When the crew went ashore to investigate, they found that the lake seemed as salty as the Dead Sea. These little critters produce the carotenoid pigments, beta-carotene (which are also found in carrots), that are thought to give rise to the bubblegum coloration of the lake's water. 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. Photo by Kurioziteti123. Lake Hillier was first discovered and named by the English navigator and cartographer, Matthew Flinders, who arrived at the Middle Island in 1802. Lake Hillier's color is best appreciated from the air, where it contrasts vividly with the lush surrounding forest. In 1803, he named the lake as Lake Hillier after a crew member of his expedition team who died of dysentery that year. That's all before we even think about the plethora of microorganisms that inhabit the water. But exactly what causes the lake to be pink? 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. The algae are completely harmless but drinking hypersaline water is a no-no. Lake Hillier is truly stunning with its distinctive strawberry milkshake color. High salt content in your bloodstream puts a serious strain on your body's natural ability to stabilize sodium and chloride levels. Today the island is an uninhabited nature reserve that is covered in a dense Eucalyptus forest. He was the first to report this lake when he observed it by climbing the highest peak on the island. It was discovered in 1802 by a … 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. Lake Hillier is situated in near the coast of. Thus, as of now, the lake and its surrounding habitat are free of human intervention and anthropogenic threats. It is surrounded by eucalyptus and paperback trees and a long and thin shore divides the Southern Ocean from the lake. The most notable feature of the lake is its pink colour. According to the official site for the pink lake of Australia, it is perfectly safe to swim in the lake. 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