#### SIMA modelling workbench

##### Joao G. Ferreira ★

Modelling workbench for forcing functions and basic nutrient - phytoplankton interaction

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Modelling workbench for forcing functions and basic nutrient - phytoplankton interaction

- 2 years 7 months ago

Trivial model to illustrate why shellfish will not deplete water column oxygen.

Model starts with low dissolved oxygen in the farm area, and no mussel farming. At time 200, when DO is up to 6 mg L-1, mussel farming begins.

Model starts with low dissolved oxygen in the farm area, and no mussel farming. At time 200, when DO is up to 6 mg L-1, mussel farming begins.

- 3 years 1 week ago

- 3 years 5 months ago

This model implements the equations proposed by Ketchum in 1954. The rationale behind the concept is that only phytoplankton that grows above a certain rate will not be flushed out of an estuary.

For biological processes:

Pt = Po exp(kt)

For biological processes:

Pt = Po exp(kt)

- 4 years 1 month ago

This very simple model generates a tidal curve and a light climate at the sea surface to illustrate the non-linearity of the diel and tidal cycles. This has repercussions on benthic primary (and therefore also secondary) production.

- 4 years 2 months ago

Simple model to calculate environmental services from oyster culture, with allometric clearance rate

- 4 years 4 months ago

Very simple model to calculate environmental services from oyster culture

- 4 years 4 months ago

- 4 years 5 months ago

Very simple model demonstrating growth of phytoplankton using Steele's equation for potential production and Michaelis-Menten equation for nutrient limitation.

- 4 years 7 months ago

- 4 years 8 months ago

Simple clearance rate formulation, after Mohlenberg & Riisgard (1979).

Normalized clearance rate expressed per gram of tissue weight.

Normalized clearance rate expressed per gram of tissue weight.

- 4 years 8 months ago

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;

1. Run WinShell individual growth model for one year with Long Island Sound growth drivers;

- 4 years 9 months ago

- 5 years 6 months ago

Simple model to simulate the balance between buoyancy and shear, an indicator of water column stability. A Richardson Number greater than 0.25 indicates a stable water column.

- 5 years 6 months ago

This model implements a very simple proxy for vertical dispersion of heat in a lake based on the equation:

dT/dt = 1/A d(EA)/dz (dT/dz)

where: T: temperature (oC); t: time (days); z: depth (m); A: cross-sectional area (m2); E: vertical dispersion coefficient (m2 d-1)

dT/dt = 1/A d(EA)/dz (dT/dz)

where: T: temperature (oC); t: time (days); z: depth (m); A: cross-sectional area (m2); E: vertical dispersion coefficient (m2 d-1)

- 5 years 6 months ago

This model is a classic simulation of the production cycle in the ocean, including the effects of the thermocline in switching off advection of dissolved nutrients and detritus to the surface layer.

Environment Primary Production Phytoplankton Biogeochemistry Ocean

- 5 years 6 months ago

General tests for CR, gut transit, etc

- 5 years 7 months ago

Simple model to illustrate Michaelis-Menten equation for nutrient uptake by phytoplankton.

The equation is:

P = Ppot S / (Ks + S)

Where:

P: Nutrient-limited production (e.g. d-1, or mg C m-2 d-1)

Ppot: Potential production (same units as P)

The equation is:

P = Ppot S / (Ks + S)

Where:

P: Nutrient-limited production (e.g. d-1, or mg C m-2 d-1)

Ppot: Potential production (same units as P)

- 5 years 7 months ago

Simulation of BEST tunnel deployed in July 2013 on the Chuckanut shellfish farm to study food depletion through clam filtration

- 6 years 4 months ago

Eastern oyster growth model calibrated for Long Island Sound

- 6 years 6 months ago

Eastern oyster growth model calibrated for Great Bay.

Developed and implemented by Joao G. Ferreira and Camille Saurel; growth data, driver data, and culture practice from Phil Trowbridge, Ray Grizzle, and Suzanne Bricker.

Developed and implemented by Joao G. Ferreira and Camille Saurel; growth data, driver data, and culture practice from Phil Trowbridge, Ray Grizzle, and Suzanne Bricker.

- 6 years 6 months ago

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)

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)

- 6 years 6 months ago

Eastern oyster growth model calibrated for Long Island Sound

- 6 years 6 months ago

This is a simple stochastic model to determine the value of pi.

Imagine people are throwing darts at a dartboard fitted inside a square frame. All the darts land somewhere inside the frame, some on the board, some out.

Imagine people are throwing darts at a dartboard fitted inside a square frame. All the darts land somewhere inside the frame, some on the board, some out.

- 6 years 6 months ago