Secchi disk readings and NTU's have no conversion.
Secchi disk is YOUR eyes perspective, NTU is a refractive measurement and how UV bounces and reflects off of a dirt particle vs reflective single cell organisms.
Sight is a factor, but not the only factor.
How does turbidity effect egg viability? Turbidity itself is a product of suspended particulates, whether sediment or algal, it affects O2 to the eggs.
What is the conversion from Secchi disk readings to NTUs? There is no conversion as they are different factors in these measurements, but the secchi disk will provide the general measurement as a base-line
How does color staining by tannins impact turbidity readings? Waters around me are clear and brown, like ice tea. The secchi disk is the standard measurement.
How do the above studies in lakes and streams correlate to smaller impoundments such as ours? It's water, vis is vis and affects "X" species the same in both types in the same manner. Keep in mind, in rivers, the changes can be more rapid, both in declines and improvements.
Last edited by Snipe; 05/27/25 10:30 AM.
