Fig. 6
Definition of food-limitation in the present study. Instantaneous larval growth rates (Gi) versus temperature in the Kiel Canal. Means of sampling dates are displayed (N = 43). The grey trend line allocates to Kiel Canal data and dotted lines indicate 95 % interval. The black regression line allocates to Greifswalder Bodden larval growth data in the seasons 2010–2012 (N = 23), the dashed lines, are indicating 95 % confidence intervals (CI). Larval growth rates were defined to be food-limited, when the upper 95 % CI from Kiel Canal was constantly below the lower 95 % confidence interval of larval growth rates from the Greifswalder Bodden, as their growth performance was lower than possible