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-Selected results from the
physical test:
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-Transparency-simplest
way to evaluate water quality and trophic state of a lake
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-measures water clarity as
a result of suspended particulate matter, such as eroded soil, bottom
sediment, and microscopic organisms in the water column
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-influenceds most
importantly by primary productivity, or algal biomass in water
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-Maine lakes are classified as eutrophic less than 4m clarity
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--our measurements indicate that TMP is eutrophic
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--comparable to other Maine lakes, all China Region lakes are
eutrophic
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--low levels of transparency can limit photosynthetic rates, and
increase respiration, leading to O2 depletion
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-Turbidity- measures the effect of suspended inorganic and
organic particulate matter on light in the water column
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-High values can negatively influence primary production
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-The aug value is significantly higher than the sep velue, prob due to
recent algal bloom
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-TMP means are slightly lower than average for other Maine lakes
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-Turbidity readings co uld indicate low sediment loading in the lake
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Transparency