Page 253 - Freshwater-Biology-and-Ecology-Handbook

3.1.26 Rapid Biological Appraisal Key (RBAK) for

farm pollution

This technique helps to screen shallow streams across The method involves the identification in the field of only
whole catchments for farm pollution. It was developed in four readily identifiable and common invertebrate taxa,
Wales but is likely to be applicable to the whole of upland plus sewage fungus. No sampling method is provided in the
England and Wales (Hydro-ecoregions 100, 101 and 114, see document, but a 1-minute kick should be sufficient for the
Figure 3.13). It has been tested successfully in the south west invertebrates.
of England.

RBAK – Rapid Biological Appraisal Key for farm pollution

This technique helps to screen shallow streams across whole catchments for farm pollution.

Figure 5.10
Cover of the report describing the Rapid Biological Appraisal Key for
detecting farm pollution and a diagrammatic representation of the method

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