This prospectus describes planned activities for the CSMI’s 2015 Lake Michigan field year, based on priorities identified in Lakewide Action and Management Plans. The 2015 CSMI will coordinate a system-wide investigation of the links between Lake Michigan nearshore and offshore habitats. This will address a key knowledge gap identified by the Lake Michigan LAMP and the fishery management community: understanding the distribution and abundance of nutrients and biota such as invertebrates and fish across a nearshore to offshore gradient. The results will facilitate the development of the nearshore strategy called for in the 2012 Great Lakes Water Quality Agreement.