1. General Model Information


Acronym: SALMOD

Main medium: aquatic
Main subject: biogeochemistry, populationdynamics
Organization level: ecosystem
Type of model:
Main application:
Keywords: salmonid populations, freshwater, water quality


USGS, Ecological Science Center (MESC)



SALMOD is a computer model that simulates the dynamics of freshwater salmonid populations, both anadromous and resident. The model's premise is that egg and fish mortality are directly related to spatially and temporally variable micro- and macrohabitat limitations, which themselves are related to the timing and amount of streamflow. Habitat quality and capacity are characterized by the hydraulic and thermal properties of individual mesohabitats, which we use as spatial "computation units" in the model. The model tracks a population of spatially distinct cohorts that originate as eggs and grow from one life stage to another as a function of local water temperature. Individual cohorts either remain in the computational unit in which they emerged or move, in whole or in part, to nearby units. Model processes include spawning (with redd superimposition), growth (including egg maturation), mortality, and movement (freshet-induced, habitat-induced, and seasonal). Model processes are implemented such that the user (modeler) has the ability to more-or-less "program" the model on the fly to create the dynamics thought to animate the population.
Source:SALMOD home page

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

V. Further information in the World-Wide-Web

VI. Additional remarks

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Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:49 CEST 2002

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