WalleyeML

Back-calculated lengths-at-age for Walleye (Sander vitreus) from Lake Mille Lacs. Walleye were captured by Minnesota Department of Natural Resources personnel in fishery-independent gillnets (five multifilament nylon mesh panels with each panel measuring 15.2 m wide and 1.8 m high; bar-measure mesh sizes of the panels were 19.1, 25.4, 31.7, 38.1, and 50.8 mm) set in the fall (mid September to early October) from 2000 to 2011.

datasets

The datasets to support the Fish Stock Assessment ('FSA') package.

Derek Ogle

FSAdata

Data to Support Fish Stock Assessment ('FSA') Package

WalleyeML function

A data frame of 14583 observations on the following 9 variables:<dl>
 <dt>ID</dt>
<dd>A unique fish identification number.</dd>
 
 <dt>Year</dt>
<dd>Year of data.</dd>
 
 <dt>Sex</dt>
<dd>Sex (female, male).</dd>
 
 <dt>Est.Age</dt>
<dd>Estimated (from otoliths) age (yrs) at capture.</dd> <dt>TL</dt>
<dd>Total length (mm).</dd> <dt>Scale.Rad</dt>
<dd>Total scale radius (mm) at capture.</dd>
 
 <dt>Dist.Ann</dt>
<dd>Scale radius (mm) to annulus given in <code>BC.Age</code>.</dd>
 
 <dt>BC.Age</dt>
<dd>Annulus or previous age.</dd>
 
 <dt>BC.Len</dt>
<dd>Back-calculated length at <code>BC.Age</code>. Lengths were back-calculated using the Scale-Proportional Hypothesis method.</dd>
 </dl>

Format

<ul>
<li>Growth</li>
<li>von Bertalanffy</li>
<li>Back-calculation</li>
</ul>

Topic(s)

Back-calculated lengths-at-age for Walleye from Lake Mille Lacs, 2000-2011. — WalleyeML

A data frame of 14583 observations on the following 9 variables:<dl>
 <dt>ID</dt>
<dd>A unique fish identification number.</dd>
 
 <dt>Year</dt>
<dd>Year of data.</dd>
 
 <dt>Sex</dt>
<dd>Sex (female, male).</dd>
 
 <dt>Est.Age</dt>
<dd>Estimated (from otoliths) age (yrs) at capture.</dd>

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

 <dt>Scale.Rad</dt>
<dd>Total scale radius (mm) at capture.</dd>
 
 <dt>Dist.Ann</dt>
<dd>Scale radius (mm) to annulus given in <code>BC.Age</code>.</dd>
 
 <dt>BC.Age</dt>
<dd>Annulus or previous age.</dd>
 
 <dt>BC.Len</dt>
<dd>Back-calculated length at <code>BC.Age</code>. Lengths were back-calculated using the Scale-Proportional Hypothesis method.</dd>
 

</dl>

<ul>
<li>Growth</li>
<li>von Bertalanffy</li>
<li>Back-calculation</li>
</ul>

WalleyeML: Back-calculated lengths-at-age for Walleye from Lake Mille Lacs, 2000-2011.

Description

Arguments

Format

Topic(s)

Examples