Effect of warming and acidification on the defense of Fucus vesiculosus against microfouling in benthocosm experiments

Defense strength as log effect ratio against microfouling by Bacillus sp., Cytophaga sp. and Vibrio sp. (averaged). Effect size > 0 indicates an attractive effect of surface-bond metabolites, effect size < 0 an inhibitory effect with the strongest defense at lowest values. Responses are detailed with regards to the four treatments: warm (+°C), acidified (-pH), warm and acidified (+°C -pH), and ambient during four seasons: spring, summer, autumn, winter (n=3).

The data set comprised 4 experimental runs: spring experiment (4.4.-10.6.2013), summer experiment 1 (4.7.-17.9.2013), autumn experiment (11.10-16.12.2013), winter experiment (16.1. - 28.3.2014).