Right or wrong, I think of it this way....take a 2 cup container and fill it to the top with clear water. Assume the water is saturated with DO. The TOTAL DO in the container has value X. Now add 1 cup of mud. The container overflows and now the container has 1 cup of mud and 1 cup of water. The Total DO in the container is 0.5X unless the mud contains DO. The fish pull whatever the mix is thru their gills to breathe. Assuming the flow of mix thru their gills is a fixed value Y, then the mix being pulled thru their gills has less DO when mixed with mud.

To me, perhaps a better question is what is the impact on a fish's ability to exchange DO thru their gills when the water is full of mud? If I put a man in a room full of suspended dust, he has a hard time breathing.

Last edited by Bill D.; 05/22/19 08:54 PM.

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