Tuggerah Central

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Results explained

Similarly with the northern section of Tuggerah Lakes, chlorophyll-a concentrations exceeded the trigger values frequently throughout the sampling period which impacted the water quality and overall ecological health grade. Water clarity and seagrass depth range were good, similar to last year.

Results explained

Observed turbidity and chlorophyll-a concentrations were lower over the long-term compared to last year. This, combined with consistent seagrass depth range from last year, resulted in an improvement in the overall grade.

Results explained

In the central zone of Tuggerah Lake there was a slight increase in turbidity concentrations compared to last year. Chlorophyll-a concentrations and seagrass depth range remained stable, resulting in no change in the overall grade in this zone for 2015.

Results explained

The seagrass depth range and turbidity levels in the central part of Tuggerah Lake remained similar to the previous year, however there was a small increase in concentration of chlorophyll-a. The changes were small enough that grading for the central part of Tuggerah Lake remained as fair.

Results explained

The central part of Tuggerah Lake showed an improvement in seagrass depth range from the previous year, however this was offset as water clarity did not improve with high algal and turbidity levels similar to last year. The grading for the central part of Tuggerah Lake remained as fair.

Results explained

Tuggerah Lakes Central achieved a fair grade in 2012 with moderate turbidity, seagrass depth range and algal levels recorded. These results were slightly downgraded from 2011 and can in part be explained by higher than usual summer rainfall in the Wyong Shire catchment area.