Fig. 3
Survivorship, growth and condition index for Ensis americanus from the field experiment on the intertidal flat at Vester Vedsted (Denmark) conducted from late September to early December. a Mean percentage survival (±95% CI) of clams; b Mean growth rates [ln (lengtht=60/lengtht=0)] (±95% CI) of clams showing positive shell increment during the experimental period. For HSS [−] the mean of all sizes is shown as there was no significant regression between growth and initial length [ln (lengtht=0)]. For the others adjusted mean values are shown based on the ANCOVA indicated in Table. 2. c Body mass index (weight/length3) of clams showing positive shell increment during the experimental period (n = 23 in each group—for details see Table. 3)