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# INPUT
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1. Model parameterization
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During simulations, three temporal series of environmental fea- tures influenced the life of the individuals: the river temperature, the river flow and the marine growth conditions (a variable synthe- sizing marine environment effects on growth, see Sections 2.1.7.4 and 2.1.7.10). These series were observed data for the parameter- ization of the model. Additional simulations utilized a set of the 3 series generated from stochastic climate models (see Sections 2.1.7.9 and 2.1.7.10).
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1. Initialization
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At the beginning of each simulation (a 1st of April) a virtual population was created with individuals from each life stages to represent a standard population from the Scorff river (Caudal and Prévost, 2008): 1.2 emerging juvenile/m2 of riffle and rapid equiva- lent area (RA), 1.32 parr of 1 year/100 m2 RA, 3.61 smolt running to sea/100 m2 RA, 3.61 grilse/1000 m2 RA (1 sea-winter anadromous adult) and 0.6 multiple sea winter individuals/1000 m2 RA. Each individual’s state variable was initialized by drawing from prob- ability distributions describing their variability (see Appendix A). The first simulation step was then a summer.
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2. Model parameterization
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By default, Ibasam use the [default parameters](https://github.com/Ibasam/IBASAM/blob/master/IBASAM/src/defaultParameters.h).
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Ibasam load the default parameters using the function [defaultParameters()](
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