Fig. 7From: 40-year long-term study of microbial parameters near Helgoland (German Bight, North Sea): historical view and future perspectives Running average of ATP concentration (solid black line) and bacterial direct counts (AODC; dashed line) from January 1989 to June 1993 (A). Box and whisker plots of monthly combined quotients of estimated bacterial carbon as calculated using the biovolume- and ATP-conversion factor (B) Back to article page