ypr_optimize

ypr_optimise

Finds the interval annual capture probability (pi) that maximises the yield
for a given population.

An implementation of equilibrium-based yield per recruit
methods. Yield per recruit methods can used to estimate the optimal
yield for a fish population as described by Walters and Martell (2004)
<isbn:0-691-11544-3>. The yield can be based on the number of fish
caught (or harvested) or biomass caught for all fish or just large
(trophy) individuals.

Joe Thorley

Yield Per Recruit

Ayla Pearson

Poisson Consulting 

ypr_optimize function

<dl><dt>object</dt>
<dd>The population or populations.</dd>
<dt>Ly</dt>
<dd>The minimum length (trophy) fish to consider when calculating the
yield (cm).</dd>
<dt>harvest</dt>
<dd>A flag specifying whether to calculate the yield for harvested
fish or captures.</dd>
<dt>biomass</dt>
<dd>A flag specifying whether to calculate the yield in terms of
the biomass versus number of individuals.</dd></dl>

Arguments

Optimize Capture — ypr_optimize

<dl>

<dt>object</dt>
<dd>The population or populations.</dd>


<dt>Ly</dt>
<dd>The minimum length (trophy) fish to consider when calculating the
yield (cm).</dd>


<dt>harvest</dt>
<dd>A flag specifying whether to calculate the yield for harvested
fish or captures.</dd>


<dt>biomass</dt>
<dd>A flag specifying whether to calculate the yield in terms of
the biomass versus number of individuals.</dd>

</dl>

ypr_optimize: Optimize Capture

Description

Usage

Value

Arguments

See Also

Examples