Figure 3

Effects of salinity on growth. Effects of salinity on growth in barnacles from three different populations (Stockholm, Kiel and Tjärnö), described by the growth model parameters (a, b and c, labelled respectively) obtained from the Gompertz growth model fitted to barnacle shell diameter data (± standard error (SE), n = 4). Parameter a estimates the maximum shell diameter of the barnacles, b estimates the lag phase during early growth and c estimates the maximal growth rate, i.e. how rapidly barnacles approach the asymptote.