Watercraft Stewards Serve as Front Line Against Invasive Species by Julia Preszler on August 18, 2019 share Watercraft Steward Lauren Sharp removes eelgrass from a motorboat that recently emerged from Chautauqua Lake while also checking for aquatic invasive species Monday Aug. 12, 2019 at the Bemus Point boat launch. SARAH YENESEL/STAFF PHOTOGRAPHER