From: Effect of benthic boundary layer transport on the productivity of Mono Lake, California
General | ||||
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Parameter | Description | Units | Assigned value | Values from field/lit |
Kd | Background extinction coefficient | m-1 | 0.35 | 0.29–0.34a |
Source | a Calculated from unpub data on in-situ light measurements | |||
Phytoplankton | ||||
Parameter | Description | Units | Assigned values: | Values from field/literature |
Pmax | Maximum potential growth rate | d-1 | 5.96 | 7.2a |
IK | Parameter for initial slope of PI curve | μEm-2s-1 | 25 | 25b |
Kep | Specific attenuation coefficient | m2 g C-1 | 0.008 | 0.008c |
KP | Half saturation constant for phosphorus uptake | mg L-1 | 0.001 | Low value as not P limited |
KN | Half saturation constant for nitrogen uptake | mg L-1 | 0.0573 | Calibrated |
INcon | Constant internal N ratio | mg N (mg C)-1 | 0.0926 | 0.17d |
IPcon | Constant internal P ratio | mg P (mg C)-1 | 0.026 | 0.048d |
θj | Temperature multiplier for growth | 1.06 | 1.07e | |
Tsta | Standard temperature | °C | 19 | |
Topt | Optimum temperature | °C | 22 | |
Tmax | Maximum temperature | °C | 39.5 | |
Rj | Metabolic loss rate coefficient | d-1 | 0.302 | Calibrated |
θR | Temperature multiplier for metabolic loss | 1.05 | Calibrated | |
fres | Fraction of respiration relative to total metabolic loss | 0.693 | Calibrated | |
fDOM | Fraction of metabolic loss rate that goes to DOM | 0.291 | Calibrated | |
ws | Settling velocity | m d-1 | 0.008 | 0.04–0.013f |
Sources | aJellison and Melack 1993a, based on maximum value of carbon uptake measured from lake samples 1983–1990 assuming 50 g C g Chl a-1 b Jellison and Melack 1993a, based on minimum value of IK measured from lake samples 1983–1990. cJellison and Melack 1993a. dJellison and Melack 2001, estimated from seston ratios during the summer period from monomictic years 1991–1995 1984 eJellison and Melack 1993a, based on Q10 of 1.95. fJellison et al.. 1993. | |||
Zooplankton | ||||
Parameter | Description | Units | Assigned values: | Values from field/literature |
Gi | Grazing rate | g C m-3 (g C m-3)-1 d-1 | 1.12 | 1.26a |
Azi | Grazing efficiency | - | 1.0 | Close to 1 as filter feeders |
Ri | Respiration rate coefficient | d-1 | 0.113 | 0.035–0.1b |
Mi | Mortality rate coefficient | d-1 | 0.0107 | 0.0033c 0.0262d |
feg | Fecal pellet fraction of grazing | d-1 | 0.096 | Kfz+kez = 0.36–0.68e |
fex | Excretion fraction of grazing | d-1 | 0.49 | |
DOmz | Minimum DO tolerance | mg L-1 | 0.0 | 0–1.2f |
θi | Temperature multiplier for growth | 1.055 | 1.22g | |
Tmin | Minimum temperature | Deg C | 6 | 6.8–9.0h |
θRi | Respiration temperature dependence | 1.10 | ||
Ki | Half saturation constant for grazing | g C m-3 | 1.12 | 2.96i |
INzi | Internal ratio of nitrogen to carbon. | g N g C-1 | 0.208 | 0.197/0.218j |
IPzi | Internal ratio of phosphorus to carbon | g P g C-1 | 0.02 | 0.0135k |
PzPHY | Preference of zooplankton for phytoplankton | 0.8 | ||
PzPOC | Preference of zooplankton for POC | 0.2 | ||
Sources | a [33, 44] (Artemia fransiscana optimal food 11 days old) b[33, 44] (Artemia fransiscana range of food 11 days old) cJellison et al.. 1993 (based on survival rate over 30 days) dDana and Lenz 1986 (based on survival rate over 26 days) eEvjemo et al.. 2000, Artemia fransiscana. fDO concentration at depth of deep Chl a maxima (unpub data). gJellison et al.. 1993 (best fit to temperature function used in model) h Jellison unpub data 1991–1994. (based on temperature at which total biomass < 0.01 before Spring growth) i Evjemo and Olsen 1999 (Artemia fransiscana 11 days old, 26–28°C, Holling Type II) j Jellison unpub data (Females/Males) k [45] | |||
Dissolved Oxygen and Nutrients | ||||
Parameter | Description | Units | Assigned values | Values from field/literature |
SdDO | DO sediment exchange rate | g m-2d-1 | 0.053 | |
KDO_sed | Half saturation constant for DO sediment flux | mg O L-1 | 0.537 | |
KDO_POM | Half saturation constant for dependence of POM/DOM decomposition on DO | mg O L-1 | 1.46 | |
fanB | Aerobic/anaerobic factor | - | 0.357 | |
θPOM | Temperature multiplier | - | 1.03 | 1.02–1.14a |
RPOC | Mineralisation rate for POC to DOC | d-1 | 0.12 | |
RPOP | Mineralisation rate for POP to DOP | d-1 | 0.1 | 0.01–0.1a |
RPON | Mineralisation rate for PON to DON | d-1 | 0.4 | 0.01–0.03a |
DPOM | Diameter of POM particles | m | 0.000009 | |
ρPOM | Density of POM particles | kg m-3 | 1109 | |
KePOC | Specific light attenuation coefficient for POC | m2 g-1 | 0.00943 | |
RDOC | Mineralisation rate for DOC | d-1 | 1 | Set to 1 to eliminate DOP pool for simplicity |
RDOP | Mineralisation rate for DOP to PO4 | d-1 | 1 | Set to 1 to eliminate DOP pool for simplicity |
RDOP | Mineralisation rate for DOP to PO4 | d-1 | 1 | Set to 1 to eliminate DOP pool for simplicity |
RDON | Mineralisation rate for DON to NH4 | d-1 | 1 | onset to 1 to eliminate DON pool for simplicity. |
KeDOC | Specific light attenuation coefficient of DOC | m2 g-1 | 0.001 | |
RN2 | Denitrification rate coefficient | d-1 | 0.000864 | 0.1a |
θN2 | Temperature multiplier for denitrification | - | 1.08 | 1.045a |
KN2 | Half saturation constant for denitrification dependence on oxygen | mg N L-1 | 1.75 | |
RNO | Nitrification rate coefficient | d-1 | 0.00553 | 0.1–0.2a |
θNO | Temperature multiplier for nitrification | - | 1.08 | 1.08a |
KNO | Half saturation constant for nitrification dependence on oxygen | mg O L-1 | 0.5 | |
θsed | Temperature multiplier for sediment nutrient fluxes | - | 1.05 | |
SdNH4 | Release rate of NH4 from sediments | g m-2 d-1 | 0.0712 | 0.054–0.18b |
KDO_SdNH4 | Controls sediment release of NH4 via oxygen – Half saturation constant for sediment NH4 release dependence on DO | g m-3 | 0.565 | |
Sources | aJorgensen and Bendoricchio 2001 b Jellison et al.. 1993 |