Fig. 1. Temperature profile at a cod cage-site aquaculture facility (Pool's Cove, Newfoundland) during the summer of 2003. This trace illustrates how quickly temperatures can change (especially at the depths where fish congregate at this time of the year; >5 m). Temperature was recorded at several depths; however, surface, 5 m and 10 m temperatures profiles only are shown to allow for clarity of data presentation.