Growth Module

It defines the biological growth parameters and reproductive strategies of the species. This module determines how individuals grow, molt, and reproduce according to both intrinsic parameters and environmental factors such as temperature and habitat shifts.

Main Properties

Properties (JSON name: growthModule):

Name	Type	Description
betaScaleTank	number	Scaling coefficient affecting metabolic or growth rate within controlled (tank-like) environments.
moltingAgeThreshold	number	Age (in time units) at which molting occurs.
capitalBreeding	object	Parameters related to capital breeding (reproduction based on stored energy reserves).
coefficientForMassA	number	Growth coefficient (A) for early developmental stages.
coefficientForMassAforMature	number	Growth coefficient (A) for mature individuals.
assignedForMolt	number	Fraction of resources allocated to molting.
ageVector	array[number]	Vector of age checkpoints (strictly increasing). Minimum value: 0.0.
eggsPerBatch	object	Parameters defining egg production per reproductive batch.
femaleWetMass	number	Wet mass of an adult female (in grams or arbitrary units).
habitatShiftFactor	number (nullable)	Scaling factor applied when the species transitions between habitats.
scaleForMassB	number	Growth scaling coefficient (B) for immature stages.
scaleForMassBforMature	number	Growth scaling coefficient (B) for mature individuals.
maxPlasticityKVonBertalanffy	number	Upper limit of plasticity for the Von Bertalanffy growth constant k.
minPlasticityKVonBertalanffy	number	Lower limit of plasticity for the Von Bertalanffy growth constant k.
habitatShift	array[integer]	Age or instar indices where habitat shifts occur. Minimum value: 2.
excessInvestInSize	number	Additional investment fraction in body size beyond standard growth.
eggDryMass	object	Parameters defining the dry mass of eggs.
growthModel	object	Definition of the mathematical model used for growth, possibly temperature-dependent.
instarFirstReproduction	integer	Instar (developmental stage) at which reproduction begins. Minimum: 2.

Object capitalBreeding

Properties:

Name	Type	Description
enabled	boolean	Whether capital breeding is active.
capitalBreedingParams	object	Parameters defining the duration and number of capital breeding events.

Object capitalBreedingParams

Properties:

Name	Type	Description
timeOfReproEventDuringCapitalBreeding	number (nullable, ≥ 0.0)	Timing of the reproductive event during the capital breeding cycle.
numberOfCapitalBreeds	integer (nullable, ≥ 0)	Number of reproductive events using stored energy.

Object eggsPerBatch

Properties:

Name	Type	Description
eggsPerBatchFromEquation	boolean	Whether the egg count is calculated via a formula.
value	integer (nullable, ≥ 0)	Fixed number of eggs per batch (used when equation-based model is disabled).
equationParameters	object	Parameters for the egg production formula.

Object eggsPerBatch - equationParameters

Properties:

Name	Type	Description
interceptForEggBatchFromEquation	number (nullable)	Intercept term of the regression defining egg production.
slopeForEggBatchFromEquation	number (nullable)	Slope term of the regression defining egg production.

Object eggDryMass

Properties:

Name	Type	Description
eggDryMassFromEquation	boolean	Whether the egg dry mass is calculated from a regression equation.
value	number (nullable)	Fixed dry mass value when not using the equation.
equationParameters	object	Parameters defining the regression model for egg dry mass.

Object eggDryMass - equationParameters

Properties:

Name	Type	Description
coefficient	number (nullable)	Regression coefficient controlling the scale of dry mass.
scale	number (nullable)	Scale factor for the regression model.

Object growthModel

Properties:

Name	Type	Description
defaultAtTempFromLab	object	Growth model determined at laboratory temperature conditions.
temperature	object	Defines thermal dependency and potential temperature-specific growth models.

Object defaultAtTempFromLab

Properties:

Name	Type	Description
model	string (enum)	Model used for growth. Possible values: - Linear - VonBertalanffy - Logistic - Exponential - Logistic4P_FixedA
A	number	Growth coefficient of the model.

Object temperature

Properties:

Name	Type	Description
dependent	boolean	Whether the growth rate depends on temperature.
growthModelThermalChanges	array[object] (nullable)	Defines temperature-specific model changes.

Object growthModelThermalChanges (elements)

Properties:

Name	Type	Description
temperature	number ( > 0.0 )	Temperature at which the change applies.
model	string (enum)	Growth model used at this temperature. Possible values: - Linear - VonBertalanffy - Logistic - Exponential - Logistic4P_FixedA
A	number	Model coefficient at this temperature.

Hierarchical Summary

growthModule
├── betaScaleTank: number
├── moltingAgeThreshold: number
├── capitalBreeding:
│   ├── enabled: boolean
│   └── capitalBreedingParams:
│       ├── timeOfReproEventDuringCapitalBreeding: number ≥ 0.0 (nullable)
│       └── numberOfCapitalBreeds: integer ≥ 0 (nullable)
├── coefficientForMassA: number
├── coefficientForMassAforMature: number
├── assignedForMolt: number
├── ageVector: array[number ≥ 0.0] (strictly increasing)
├── eggsPerBatch:
│   ├── eggsPerBatchFromEquation: boolean
│   ├── value: integer ≥ 0 (nullable)
│   └── equationParameters:
│       ├── interceptForEggBatchFromEquation: number (nullable)
│       └── slopeForEggBatchFromEquation: number (nullable)
├── femaleWetMass: number
├── habitatShiftFactor: number (nullable)
├── scaleForMassB: number
├── scaleForMassBforMature: number
├── maxPlasticityKVonBertalanffy: number
├── minPlasticityKVonBertalanffy: number
├── habitatShift: array[integer ≥ 2]
├── excessInvestInSize: number
├── eggDryMass:
│   ├── eggDryMassFromEquation: boolean
│   ├── value: number (nullable)
│   └── equationParameters:
│       ├── coefficient: number (nullable)
│       └── scale: number (nullable)
├── growthModel:
│   ├── defaultAtTempFromLab:
│   │   ├── model: enum [Linear, VonBertalanffy, Logistic, Exponential, Logistic4P_FixedA]
│   │   └── A: number
│   └── temperature:
│       ├── dependent: boolean
│       └── growthModelThermalChanges: array[object]
│           ├── temperature: number > 0.0
│           ├── model: enum [Linear, VonBertalanffy, Logistic, Exponential, Logistic4P_FixedA]
│           └── A: number
└── instarFirstReproduction: integer ≥ 2