Lake Hillier is located in the Recherche Archipelago off the South coast of Western Australia. First discovered in 1802 is one of the few pink lakes
of the world. Although is not know exactly why is pink, it is believe its color could be due to
halobacteria with a strong carotenoind pigment, as the lake have a high salinity, around 10
times above the sea salinity. It has no known negative effect to humans.
Recherche Archipelago location
Other possibility is the presence of the algae Dunaliella salina, that is
cultivated in some places to produce β-carotene and glycerol, as seen in this
salt ponds in San Fransisco bay. It is believe the high β-carotene of this algae is to protect itself from UV radiation.
Salt ponds in SF bay
In the end the color may not require life at all but could be due to chemical reactions of the salts present in the lake.
So there you have it, Australia is not only home to the most poisonous creatures in the world, it also have innocuous pink lakes that could come from
the fantasies of a 9 y/o my little pony fan
edit on 19-1-2015 by Indigent because: (no reason given)
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