|
Résumé :
|
Mathematical models that predict standing crop of stream fish from habitat variables have been classified by independent habitat variable, mathematical structure, and model quality. The 99 models reviewed were grouped by the types of independent variables found significant during model development : drainage basin variables, channel-morphometry and flow variables,habitat structure, biological, physical, and chemical variables, a combination of several types, and tests of weighted usable area as a habitat model. It was found that sound statistical procedures were often neglected during development of models. To be useful for analyzing land management alternatives, models must include variables affected by management and be specific for a homogeneous area of land.
|
