state the law that says that please.
Actually if you get a definition of consumption instead of riding your usual high horse about killing fish. You will find that using fish remains, which is any and all parts of a dead fish for fertilizer is legal consumption.
Nowhere does the law say human consumption only.
If what you claim was true no rough fish could be made into feralizer, dog food, emulsion or anything else.
Consumption does not exclusively mean being eaten. It means use of.
Call TPWD and ask them if it is ok to use rough fish as fertilizer. It is.
Throwing a truck load of arrived fish in a remote field is not consumption it is waste. Purposely burying or
grinding up and putting in soil for agriculture purposes is not waste.