calculate_daily_weight_change

Calculates final weight after growth, using existing predator energy density functions.
Ensures biologically realistic weight changes.

internal

An implementation of the 'Fish Bioenergetics 4.0' framework
described in Deslauriers et al. (2017)
<doi:10.1080/03632415.2017.1377558>. Provides automated parameter
optimization, multi-prey diet modeling, and comprehensive energy budget
simulations for fisheries research and aquaculture applications. An
optional 'TMB' (Template Model Builder) backend delivers 10-50x speedup
in maximum likelihood estimation while maintaining full backward
compatibility. Includes species-specific parameter databases and tools
for modeling fish growth, consumption, and metabolism under varying
environmental conditions.

Hans Ttito

fb4package

'Fish Bioenergetics 4.0' Model Implementation with
High-Performance 'TMB' Backend

calculate_daily_weight_change function

<dl><dt>current_weight</dt>
<dd>Initial weight of the day (g)</dd>
<dt>net_energy</dt>
<dd>Net energy available (J/g fish/day)</dd>
<dt>spawn_energy</dt>
<dd>Energy lost to reproduction (J)</dd>
<dt>day</dt>
<dd>Current simulation day</dd>
<dt>processed_predator_params</dt>
<dd>Processed predator parameters</dd></dl>

Arguments

Calculate daily weight change (Low-level) — calculate_daily_weight_change

<dl>

<dt>current_weight</dt>
<dd>Initial weight of the day (g)</dd>


<dt>net_energy</dt>
<dd>Net energy available (J/g fish/day)</dd>


<dt>spawn_energy</dt>
<dd>Energy lost to reproduction (J)</dd>


<dt>day</dt>
<dd>Current simulation day</dd>


<dt>processed_predator_params</dt>
<dd>Processed predator parameters</dd>

</dl>

calculate_daily_weight_change: Calculate daily weight change (Low-level)

Description

Usage

Value

Arguments