It has also affected fish kept in 474 floating baskets with many death due to lack of oxygen. This has caused losses to more than 100 farmers.
A team from the Ministry of Social Development and Human Security surveyed the damages and 107 farmers have registered for help.
Uthai Thani's Provincial Fisheries Office, meanwhile, suggested that during this period, farmers should stop fish-farming in the river as the oxygen level decreases in the absence of circulation.
Farmers were also advised to cut down on feeding to lessen waste in the baskets.