Photographer's Note

I have posted a shot of the Walvis Bay salt pans before. This is a more recent shot taken when both the green and red algae were visible.

Walvis Bay has one of the largest salt works in Africa. The seawater is fed into large ponds, which gradually dry out through natural evaporation. The colour indicates the salinity of the ponds. Micro-organisms change their hues as the salinity of the pond increases. In low to mid-salinity ponds, green algae are predominant. In middle to high salinity ponds, an algae called Dunaliella salina shifts the colour to red. The salt fields of Walvis Bay cover an area of 3 500 hectares and annually produce 400 000 tons of high-quality salt. This successful commercial enterprise also provides an ideal habitat for many species of marine birds.

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Additional Photos by Rosemary Walden (SnapRJW) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2806 W: 84 N: 6959] (31631)
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