so yer saying its all about the turbidity?
...or lack thereof.
Low water + low inorganic sediment inflow (drought) = increased sunlight penetration to bottom substrate.
Increased sunlight penetration to substrate means ideal conditions for submergent vegetation.
Significant growth of agressive submergent vegetation means decreased available nutrients available for single celled algae.
Decreased amount of single celled algae means
Increased clarity. (increased or decreased)
Fill in the blank.