Fisheries are a major marine resource, and a critical component of the United States economy. Along the US Northeast Shelf, ocean warming has become a prominent concern for fish populations. Fish have optimal habitats that are strongly related to temperature. So as waters become warmer, the distributions of certain fish species are changing. There is increasing importance to include habitat information into fisheries stock assessment models, as stock dynamics and observations of stock abundance are impacted by habitat. We conduct laboratory and field studies to determine the impact of temperature on fish physiology, critical limits, energetics and reproduction. We have projects working with NOAA NMFS to improve habitat metrics based on laboratory studies of commercially important fish species, as well as projects focusing on population wide effects of warming on reproduction and energetics. This information will ultimately be used to guide existing and future management decisions.