An annually-resolved cross-dated chronology was built over 114 years using 38 Glycymeris glycymeris shells, both live and dead collected from the Bay of Brest, France. Standard sclerochronology techniques along with COFECHA and ARSTAN provided a statistically robust expressed population signal (EPS) which correlated with various environmental factors such as inflow from the River Elorn, food availability, salinity and annual rainfall. All this could be traced back to food availability pushed into the Bay of Brest, using a PCA.
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Fish Ecology Lab 