convmort

Convert instantaneous fishing mortality rate (F) to annual exploitation rate (mu) and vice versa for
Type I and II fisheries.

misc

Functions for applying a wide range of fisheries stock assessment methods.

Gary Nelson

fishmethods

Fishery Science Methods and Models

convmort function

<dl> <dt>value</dt>
<dd>mortality rate</dd> <dt>fromto</dt>
<dd>conversion direction: 1=from F to mu; 2 = from mu to F. Default is 1.</dd> <dt>type</dt>
<dd>type of fishery following Ricker (1975): 1=Type I; 2=Type II. Default is 2.</dd> <dt>M</dt>
<dd>natural mortality rate (for Type II fishery)</dd></dl>

Arguments

Gary A. Nelson, Massachusetts Division of Marine Fisheries <a href="/link/gary.nelson%40mass.gov?package=fishmethods&version=1.12-1" data-mini-rdoc="fishmethods::gary.nelson@mass.gov">gary.nelson@mass.gov</a>

Author

Conversion of Mortality Rates — convmort

<dl>

 <dt>value</dt>
<dd>mortality rate</dd>

 <dt>fromto</dt>
<dd>conversion direction: 1=from F to mu; 2 = from mu to F. Default is 1.</dd>

 <dt>type</dt>
<dd>type of fishery following Ricker (1975): 1=Type I; 2=Type II. Default is 2.</dd>

 <dt>M</dt>
<dd>natural mortality rate (for Type II fishery)</dd>

</dl>

Gary A. Nelson, Massachusetts Division of Marine Fisheries <a href='mailto:gary.nelson@mass.gov'>gary.nelson@mass.gov</a>

convmort: Conversion of Mortality Rates

Description

Usage

Value

Arguments

Author

Details

References

Examples