Possible sampling simplification of macroinvertebrates for urban drainage purposes
Admissible simplification of field sampling of macroinvertebrates compared to the standard AQEM method was searched for. Both the effect of the subjectivity of multihabitat sampling and the effect of the reduction of the number of sampling points and their uncertainties were studied. A substantial reduction of the number of sampling units (from 20 to 7) is possible only for ASPT and Saprobic index and diversity (to 9). A certain reduction (to 14) is also possible for the number of individuals, % EPT and IBI index but no reduction can be applied in case of number of taxa and BMWP, where already the replicate 20 unit samples were biased by an unacceptable uncertainty.
KeywordsSampling Unit Probability Density Function Urban Drainage Combine Sewer Overflow Saprobic Index
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- 1.Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy.Google Scholar
- 2.AQEM consorcium (2002) AQEM – Manual for the Application of the AQEM System, Project under the 5th Framework Programme Energy The Development and Testing of an Integrated Assessment System for the Ecological Quality of Streams and Rivers throughout Europe using Benthic Macroinvertebrates; 1st deliverable, due to 31/8/00, entitled: Stream assessment methods, stream typology approaches and outlines of a European stream typology,Contract No: EVK1-CT1999-00027.Google Scholar
- 3.Vlek H.E. (2004) Comparison of (Cost) Effectiveness between Various Macroinvertebrate Field and Laboratory Protocols. European Commission, Star, Deliverable N1, 78 pp.Google Scholar
- 5.Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy.Google Scholar
- 9.Plafkin J.L., Barbour M.T., Porter K.D., Gross S.K., Hughes R.M. (1989) Rapid bioasessment protocols for use in stress and rivers: benthic macroinvertebrates and fis. EPA/444/4-89-001. United states environmental protection agency, Washington D.C., USA.Google Scholar
- 13.BUWAL (1998). Methoden zur Untersuchung und Beurteilung der Fliessgewasser: Ökomorphologie Stufe F, Mitteilungen zum Gewässerschutz Nr. 27.Google Scholar
- 14.14.University of Washington (2000) Benthic Index of Biological Integrity (B-IBI) for the Puget Sound Lowlands, Internet source: http://www.cbr.washington.edu/salmonweb/bibi/.
- 15.BWK-Materialien (2003) Begleitband zu dem BWK-Merkblatt.Google Scholar