Invasive alien aquatic plant species management drives aquatic ecosystem community recovery: An exploration using stable isotope analysis

•Salvinia molesta infestation negatively affected aquatic food web structure.•Stable Isotope Bayesian Ellipses models were sensitive to quantify S. molesta impacts.•Abiotic filters associated with invasion were important drivers for degradation.•Aquatic system communities recovered shortly after biological or mechanical control.•Aquatic weeds control alone is not sufficient to restore previously invaded systems.