Turbidity Turbidity Turbidity is a measure of cloudiness in water. The more turbid the water, the murkier it is. Turbidity can be caused by soil erosion, waste discharge, urban runoff, bottom feeders like carp that stir up sediments, household pets playing in the water, and algal growth. Turbid waters become warmer as suspended particles absorb heat from sunlight, causing oxygen levels to fall.
Photosynthesis decreases with lesser light, resulting in even lower oxygen levels.
Suspended solids in turbid water can clog fish gills, reduce growth rates, decrease resistance to disease, and prevent egg and larval development. Settled particles smother eggs of fish and aquatic insects. Second stirring rod Gloves Wash bottle containing demineralized water Waste container Procedure Put on gloves. Submerge it straight down into the water, rotate it to point upstream, then tilt it slightly up until it fills to the 50 ml line with water. Look down from the top of the tube.