Dr. Johengen has a dual appointment within SEAS and currently serves as the Director of Michigan Sea Grant (MISG) and a Research Scientist within the Cooperative Institute for Great Lakes Research (CIGLR). MISG is a cooperative program of the University of Michigan, Michigan State University, and the National Oceanic and Atmospheric Administration (NOAA). MISG funds research, education, and outreach projects designed to foster science-based decisions about the sustainable use and management of Great Lakes resources. CIGLR is a NOAA Joint Institute program at the University of Michigan with the NOAA-Great Lakes Environmental Research Laboratory serving as the host lab. CIGLR's research activities are focused around five themes including: Climate and Large-Lake Dynamics, Coastal and Nearshore Processes, Large-Lake Ecosystem Structure and Function, Remote Sensing, and Marine Environmental Engineering. Dr. Johengen's individual research interests focus on nutrient cycling and lower food-web dynamics in the Great Lakes, development of forecasting systems to mitigate impacts of harmful algal blooms and hypoxia, controlling the introduction of invasive species, and development of in situ water quality sensors and observing systems.