Over the past 20 years, zooplankton abundance followed a decreasing trend between 1997 and 2015 ( Fig. 4 ) with peak abundance within the time series as 59,522 μgDW/m 3 in 1999 and the lowest abundance as 6,720 μgDW/m 3 in 2008.
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Incorporation of feeding functional group information informs explanatory patterns of long-term population changes in fish assemblages.
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