Research on Quantifying Sea Lamprey Ecological Impacts Based on Differential Equation Modeling and AHP-TOPSIS Framework

Abstract

The invasive sea lamprey has posed significant challenges to aquatic ecosystems, affecting biodiversity and the fishing industry. This paper endeavors to quantitatively assess the impacts of sea lamprey population, explicitly accounting for variation in sex ratio, on both prey population and others within ecosystem, thereby facilitating the formulation and implementation of more strategically focused management interventions. The paper achieved the aforementioned objectives by developing a differential equation-based sea lamprey-prey population dynamics model to quantify impacts on prey population, and employing the AHP-TOPSIS framework to quantify the broader ecological impacts. This comprehensive approach provides a holistic perspective on the sea lamprey's cumulative impact on the ecosystem.