Female reproductive stages among length frequencies.

<p><b>a)</b> 10–28 mm body length classes of stages <i>F0</i>, <i>FI</i>, <i>FII</i> and <i>FIV</i> from 2002, 2007, 2011, 2012 and 2013 combined with a vertical red line marking the greater than 16 mm size ranges included in; <b>b)</b> the percentages of reproductive stages <i>F0</i>, <i>FI</i>, <i>FII</i> and <i>FIV</i> among 16 mm and greater length females.</p>