Fig. 4

Salinity of the upper 6 m layer in Kiel Fjord measured weekly from March until June for the years 2005 until 2010. The dark bars display the 2009 values with highest larvae abundance and settlement success. The line in each box represents the median, the bottom of the box depicts the 25th percentile and the top the 75th percentile. The lower end of the whisker ends in the minimum and the upper in the maximum value. The black data points show outliers