Rex, wouldn't the "new" nutrient load (IF none of the dead Tilapia were removed from the pond) be the weight of the Tilapia (minus the water that their bodies are made up from) that were stocked into the pond?

i.e. if Tilapia is 80% water then the added nutrient load per pound of stocked Tilapia would be 3.2 ounces per pound of stocked fish?

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).