Fig. 2From: Sex-ratio, seasonality and long-term variation in maturation and spawning of the brown shrimp Crangon crangon (L.) in the German Bight (North Sea)Length frequency distributions by sexes of Crangon crangon from the spring DYF Surveys and the Winter Shrimp Survey 2001–2004, separated by seasons (a) September, (b) January, (c) AprilBack to article page