Fig. 3From: The diatom Mediopyxis helysia Kühn, Hargreaves & Halliger 2006 at Helgoland Roads: a success story?Abiotic and biotic parameters as measured at Helgoland Roads between January 2009 and November 2010, plotted against Mediopyxis cell densities (grey line): a salinity (the insert shows a subset of the data from 15th March to 17th May 2010, covering the period of rapid decline in salinity and increase in Mediopyxis abundance), b surface water temperatures (°C)Back to article page