You need to enable JavaScript to run Insight Maker.
Clone of Eastern oyster population model Long Island Sound
Diogo Magalhães
Eastern oyster growth model calibrated for Long Island Sound
This is a one box model for an idealized farm with one million oysters seeded (one hectare @ a stocking density of 100 oysters per square meter)
1. Run WinShell individual growth model for one year with Long Island Sound growth drivers;
2. Determine the scope for growth (in dry tissue weight per day) for oysters centered on the five weight classes)
3. Apply a classic population dynamics equation:
dn(s,t)/dt = -d[n(s,t)g(s,t)]/ds - u(s)n(s,t)
s: Weight (g)
t: Time
n: Number of individuals of weight s
g: Scope for growth (g day-1)
u: Mortality rate (day-1)
4. Set mortality at 30% per year, slider allows scenarios from 30% to 80% per year
5. Determine harvestable biomass, i.e. weight class 5, 40-50 g (roughly three inches length)