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Fishery mortality on returning individuals was simulated by the removal of a proportion of each sea age class (1SW or MSW, base proportion of 15%) from the population at the end of summer step, that is after the observation of number of returns and proportions of MSW.
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The reproduction events were simulated according to relevant S. salar literature (Fleming 1996). The mating system allowed mature male parr to fertilize a fraction of the eggs. It selected anadromous males following size dominance while allowing satellite males to fertilize a significant fraction of the eggs. The number of egg per female was size dependent. Egg-to-emergence survival was water temperature, river flow and density dependent.
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# BIOLOGICAL PROCESSES
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IBASAM is made of 8 submodels representing fundamental biological processes :
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1. Reproduction and redd creation
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2. Emergence from the redds and individual birth
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3. Genetic coding and transmission
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4. Growth
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5. Survival
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6. Smoltification
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7. Maturation
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8. Migrations
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It also includes 2 environmental submodels :
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10. River climate (Water temperature and flow)
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11. Ocean climate |
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