Pink Lake is a salt lake in the Goldfields-Esperance region of Western Australia.Although historically the water in the lake was visibly pink, as of 2017 it had not been pink for over ten years.Salt concentration is vital to Pink Lake’s pink hue, and Pink Lake may turn pink again as conditions change. It lies about 3 kilometres (2 mi) west of Esperance and is bounded to the east by the South Coast Highway.
The dynamics of why a lake turns pink is very complex. External changes and weather conditions can affect the colour of the lake. Esperance’s Pink Lake has lost its pink colour due to a number of contributing factors.Lake was a tourist attraction in the Esperance region with the surrounding area, an arterial road and local businesses adopting the name.
The dynamics of why a lake turns pink is very complex and external changes and weather conditions can have a big impact.Esperance’s Pink Lake has lost its pink colour due to a number of contributing factors. This is the same pigment that gives carrots, which contain 0.3% of Beta-carotene, their colour. Concentrations as high as 14% of the dry weight can occur in Dunaliella salina, which is the highest in any organism. The Beta-carotene protects the alga against damage from high light, coating the greenchlorophyll and giving the alga an orange/red colour.
