The specific application of the fuzzy comprehensive evaluation method with subjective and objective weighting

Fuzzy comprehensive evaluation is a method based on fuzzy mathematics that applies the principle of fuzzy relationship synthesis to quantitatively assess factors with unclear boundaries and difficult quantification through comprehensive evaluation. As this method gradually improves and becomes more widely applied, it becomes capable of handling problems involving a large number of complex phenomena and interactions among various factors, yielding satisfactory results. To demonstrate the practical feasibility of this method, we applied it to a specific problem concerning lamprey, resulting in conclusions consistent with natural phenomena, thus validating the rationality of fuzzy comprehensive evaluation. Furthermore, based on our conclusion, feasible solutions are provided to address the problem of lampreys in the five major lakes.