Temperature according to depth and date for three geographical regions.

<p>Weighted average daily temperature from the surface to 150 m depth for both study years (left 2009/2010; right 2010/2011) within each geographical region (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0132686#pone.0132686.g001" target="_blank">Fig 1</a>). The black arrows show the most prominent upwelling events. Note that there was no measurement at 150 m in Box A during the first season.