Fig. 2

Abundance of the Pacific oyster on all investigated mussel beds (for the location see Fig. 1) in the years 2003, 2004 and 2005. Box plots show median (horizontal line within box), 25th and 75th percentiles (box) and 10th and 90th percentile (whiskers); circles indicate all outlier. For the comparison of abundances during 1 year each Box and Whisker-Plot has different scaled axis of abscissa