calculate_nutrient_allocation

Calculates nutrient balance in consumption, growth, excretion and egestion

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_nutrient_allocation function

<dl><dt>consumption</dt>
<dd>Vector of consumption by prey type (g/day)</dd>
<dt>prey_nutrient_concentrations</dt>
<dd>Vector of nutrient concentrations in prey (g nutrient/g wet weight)</dd>
<dt>nutrient_assimilation_efficiency</dt>
<dd>Vector of nutrient assimilation efficiencies (fraction 0-1)</dd>
<dt>weight_gain</dt>
<dd>Predator weight gain (g/day)</dd>
<dt>predator_nutrient_concentration</dt>
<dd>Nutrient concentration in predator (g nutrient/g wet weight)</dd></dl>

Arguments

Generic nutrient allocation in bioenergetic model (Low-level) — calculate_nutrient_allocation

<dl>

<dt>consumption</dt>
<dd>Vector of consumption by prey type (g/day)</dd>


<dt>prey_nutrient_concentrations</dt>
<dd>Vector of nutrient concentrations in prey (g nutrient/g wet weight)</dd>


<dt>nutrient_assimilation_efficiency</dt>
<dd>Vector of nutrient assimilation efficiencies (fraction 0-1)</dd>


<dt>weight_gain</dt>
<dd>Predator weight gain (g/day)</dd>


<dt>predator_nutrient_concentration</dt>
<dd>Nutrient concentration in predator (g nutrient/g wet weight)</dd>

</dl>

calculate_nutrient_allocation: Generic nutrient allocation in bioenergetic model (Low-level)

Description

Usage

Value

Arguments