Fall 2007 Update: Georges Bank Subregion

graphs of SST conditions

SST conditions were warm on Georges Bank during the fall of 2006, but quickly become cool with onset of winter, and continued to be cool into the spring of 2007. These cool conditions persisted into early summer. The 2007 spring bloom was above the climatological mean in terms of intensity, but the bloom was of low magnitude since it only lasted 3-4 weeks. The bloom started at a date typical of the spring bloom in that subregion, but it was over by the end of April. Early summer chlorophyll levels were well above average. The winter 2007 zooplankton biomass for Georges Bank was extremely low, well below the long-term mean for the subregion. Since the January-February zooplankton estimate is provisional, caution should used in interpreting this trend.

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