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Vocabulary Term Details


Definition (

RIVPACS (River Invertebrate Prediction and Classification System) is a statistical model which enables the user to estimate the macroinvertebrate community expected at high quality (“reference”) running water sites using information on their environmental characteristics. The model consists of a categorization of the reference sites in its database into a number of discrete community types. By measuring the environmental characteristics for a new site of interest, the user can predict the probability of membership of each community type, and hence the overall “reference” macroinvertebrate community at that site. This is often known as the expected fauna for a site, and generally corresponds to reference condition under the European Water Framework Directive (WFD). (CEH)

Preferred Units: N/A

Scope Note:

Broader TermsNarrower TermsRelated Terms
Classification systems
N/ABiotic index
Environmental impact assessment
Environmental quality
Indicator organisms
River ecosystem classification
Water Framework Directive

This term is used for the following terms: 
River Invertebrate Prediction and Classification System

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