https://www.youtube.com/watch?v=ZX-rYoylvIs&feature=youtu.be SUNY Fredonia graduate student MaryAnn Mason is studying the different temperature layers of Chautauqua Lake this summer. Assistant
Doug Conroe, Executive Director of the Chautauqua Lake Association, pulls up the sonde used to collect multiple types of data from Chautauqua Lake during the biweekly lake test on Sunday, Aug 18, 2019. ALEXANDER WADLEY/STAFF