Scientists are using a control sample that is known to be from bighead carp in an eDNA surveillance study. What purpose does this control serve?

In an eDNA surveillance study, a control sample known to be from bighead carp serves as a benchmark to validate the accuracy and sensitivity of the detection methods used. It helps ensure that the eDNA analysis can reliably identify the presence of bighead carp in environmental samples by confirming that the techniques can effectively detect DNA from this specific species. Additionally, the control can help identify potential contamination or false positives in the results.