Turbidity is an indicator of water clarity, quantifying the haziness of the water and acting as an indicator of underwater light availability. Light penetration may or may not be sufficient to support the growth of aquatic plants and adversely affect fish and shellfish populations. Mangroves are known to reduce the turbidity of waters. The data show the total percentage deviation, from a baseline, for turbidity and trophic state. A five year baseline (2006- 2010), per lake, has been produced for both parameters. This is used to measure change against recent years (2017-2019). The data represent the number of lakes impacted by a degradation of their environmental conditions (i.e. showing a deviation in turbidity and trophic state from the baseline) compared to the total number of lakes within a country. The values produced account for different sized lakes.

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