les:</p><dl><dt>ID</dt>
<dd><p>A unique fish identification number.</p></dd>
 
 <dt>Year</dt>
<dd><p>Year of data.</p></dd>
 
 <dt>Sex</dt>
<dd><p>Sex (female, male).</p></dd>
 
 <dt>Est.Age</dt>
<dd><p>Estimated (from otoliths) age (yrs) at capture.</p></dd>

 <dt>TL</dt>
<dd><p>Total length (mm).</p></dd>

 <dt>Scale.Rad</dt>
<dd><p>Total scale radius (mm) at capture.</p></dd>
 
 <dt>Dist.Ann</dt>
<dd><p>Scale radius (mm) to annulus given in <code>BC.Age</code>.</p></dd>
 
 <dt>BC.Age</dt>
<dd><p>Annulus 