Lynette Renzetti's work in the field of biology began in 1987 and has included field sampling, lab analysis, benthos identification, and limnological research. She began her career in environmental science conducting research to investigate the role of feeding patterns on the uptake of heavy metals by benthic invertebrates. During this time she worked as an instructor teaching water quality field techniques at the post secondary level. As a field investigator with the MOE, Lynette collected and analyzed water quality data on the Trent Severn waterway, investigated the effects of fish farming on stream water quality, and reported on the effects of pulp and paper effluent on the life history of benthos. Lynette has dedicated many years to teaching environmental science and ecology at both the secondary and post secondary levels, within Canada and abroad. More recently, Lynette worked in quality controlled manufacturing and laboratory testing environments writing and reviewing SOPs and working with Quality Management Plans. Since 2003, Lynette contracted to LGL as a benthos specialist on several projects related to environmental assessment and long-term monitoring.

Since joining LGL full time in August 2009, Lynette has conducted a variety of investigations in support of Renewable Energy Projects, Environmental Assessments for wastewater and transportation projects, and long-term monitoring. Her work at LGL includes the preparation of environmental impact studies and natural sciences reports, identification of environmental constraints, investigation and screening for species at risk, recommendation of mitigation measures, consultation with the public through information forums, and presentations of technical papers and reports.