| File(s) | Type | Description | Action |
|---|---|---|---|
Phytoplankton_Community_Structure_Rcode_Smith_Edwards_2019.R (10.34 KB) | Octet Stream | R code to model changes in phytoplankton community structure and diversity, based on three traits: maximum growth rate, specific uptake affinity for phosphate, and internal storage capacity for phosphorus. These variables are affected by periodically supplying nutrients at multiple timescales. parameter definitions: umax = maximum growth rate Psaff = scaled uptake affinity for phosphorous vmaxhi = maximum cell-specific phosphate uptake rate when quota is at its minimum vmaxlo = maximum uptake rate when quota is at its maximum K = half-saturation constant for phosphate uptake Q = cellular internal phosphorus concentration Qmin = minimum phosphorus quota u.infin=umax*Qmax/(Qmax-Qmin)=theoretical growth rate at inifinite quota m = instantaneous mortality rate a = instantaneous mixing rate d = effective instantaneous mixing/mortality rate for the pulses S = dissolved phosphorus concentration in water below the mixed layer f = proportion of phosphorus in dead cells that is instantly remineralized |
Files
Filename: Phytoplankton_Community_Structure_Rcode_Smith_Edwards_2019.R (10.34 KB)
Type: Octet Stream
Description: R code to model changes in phytoplankton community structure and diversity, based on three traits: maximum growth rate, specific uptake affinity for phosphate, and internal storage capacity for phosphorus. These variables are affected by periodically supplying nutrients at multiple timescales. parameter definitions: umax = maximum growth rate Psaff = scaled uptake affinity for phosphorous vmaxhi = maximum cell-specific phosphate uptake rate when quota is at its minimum vmaxlo = maximum uptake rate when quota is at its maximum K = half-saturation constant for phosphate uptake Q = cellular internal phosphorus concentration Qmin = minimum phosphorus quota u.infin=umax*Qmax/(Qmax-Qmin)=theoretical growth rate at inifinite quota m = instantaneous mortality rate a = instantaneous mixing rate d = effective instantaneous mixing/mortality rate for the pulses S = dissolved phosphorus concentration in water below the mixed layer f = proportion of phosphorus in dead cells that is instantly remineralized
Type: Octet Stream
Description: R code to model changes in phytoplankton community structure and diversity, based on three traits: maximum growth rate, specific uptake affinity for phosphate, and internal storage capacity for phosphorus. These variables are affected by periodically supplying nutrients at multiple timescales. parameter definitions: umax = maximum growth rate Psaff = scaled uptake affinity for phosphorous vmaxhi = maximum cell-specific phosphate uptake rate when quota is at its minimum vmaxlo = maximum uptake rate when quota is at its maximum K = half-saturation constant for phosphate uptake Q = cellular internal phosphorus concentration Qmin = minimum phosphorus quota u.infin=umax*Qmax/(Qmax-Qmin)=theoretical growth rate at inifinite quota m = instantaneous mortality rate a = instantaneous mixing rate d = effective instantaneous mixing/mortality rate for the pulses S = dissolved phosphorus concentration in water below the mixed layer f = proportion of phosphorus in dead cells that is instantly remineralized