Fig. 1From: Change of external sexual characteristics during consecutive moults in Crangon crangon LDuration of the intermoult periods (IMP) of Crangon crangon (means ± SD, n=17–41) and the water temperature off Helgoland (monthly means ± SD, n=12–22) in 2004. The change of external sexual characteristics was observed in February (indicated by the asterisk)Back to article page