Kicking off the fall series and following on the heels of Portsmouth’s annual Fish and Lobster Festival is the first fall science café on the topic of North Atlantic fish stocks and long-term human trends at the Portsmouth Brewery Wednesday, Sept. 18, 2013, at 6 p.m. The fall 2013 science café series, hosted by UNH, NH EPSCoR, and the Portsmouth Brewery, explores topics related to the sustainability of food.