an increasing trendP = 0.05
Accompanying the shift in diatom community composition, our paleolimnological records also registered an increasing trend in lake-wide algal production in GBL and GSL (VRS-Chla; P = 0.05 to 0.0003) that was an excellent match with increases in primary production in these two lakes measured by remote sensing (GSL P = 0.028, GBL P = 0.016) ( 14 ) ( Fig. 4 ).