Stream macroinvertebrate occurrence along gradients in organic pollution and eutrophication
Tóm tắt
1. We analysed a large number of concurrent samples of macroinvertebrate communities and chemical indicators of eutrophication and organic pollution [total‐P, total‐N, NH4–N, biological oxygen demand (BOD5)] from 594 Danish stream sites. Samples were taken over an 11‐year time span as part of the Danish monitoring programme on the aquatic environment. Macroinvertebrate communities were sampled in spring using a standardised kick‐sampling procedure whereas chemical variables were sampled six to 24 times per year per site. Habitat variables were assessed once when macroinvertebrates were sampled.
2. The plecopteran
3. Macroinvertebrate occurrence appeared to be related primarily to concentrations of BOD5, NH4–N and total‐P whereas there were almost no relationships to total‐N. Occurrence of a number of taxa showed a stronger relationship to habitat conditions (width and substrate) than chemical variables.
4. Important macroinvertebrate taxa are reduced at concentrations of BOD5 that are normally perceived as indicating unimpacted stream site conditions. Our results confirmed sensitivity/tolerance patterns used by existing bioassessment systems only to some degree.
Từ khóa
Tài liệu tham khảo
A.F.N.O.R., 1982, Essais des euax. Détermination de l’indice biologique global normalisé (IBGN)
Agresti A., 1990, Categorical Data Analysis
Barbour M.T., 2000, Assessing the Biological Quality of Freshwaters: RIVPACS and Similar Techniques, 281
EEA – European Environment Agency, 1991, Europe’s Environment. The Dobris Report
EEA – European Environment Agency, 1994, European Rivers and Lakes. Assessment of the Environmental State
EEA – European Environment Agency, 1999, Nutrients in European Ecosystems
European Commission, 2007, WFD Intercalibration Report – Part 1 Rivers, Section 2 Benthic Macroinvertebrates
Farmer A.M., 2004, Phosphorous in Environmental Technologies–Principles and Applications, 174
Hynes H.B.N., 1960, The Biology of Polluted Waters
Kolkwitz R., 1902, Grundsatze fur die biologische Beurteilung des Wassers nach seiner Flora und Fauna, Mitteilungen der Prufungsansalt fur Wasserversorgung und Abwasserreining, 1, 1
Liebmann H., 1951, Handbuch der Frischwasser und Abwasserbiologie
Metcalfe‐Smith J.L., 1996, River Restoration, 17
Moog O., 2002, Fauna Aquatica Austriaca
Nilsson A., 1996, Aquatic Insects of North Europe
Skriver J., 2000, Biological assessment of running waters in Denmark: introduction of the Danish Stream Fauna Index (DSFI), Verhandlungen Internationale Vereinigung für Theoretische und Angewandte Limnologie, 27, 1822
Sladecek V., 1973, System of water qualification from the biological point of view, Archiv fur Hydrobiologie Beiheft Ergebnisse der Limnologie, 7, 1
Snedecor G.W., 1989, Statistical Methods
Søndergaard M., 2006, Aquatic Environment. Biological Status
Stoltze M., 1998, Red List Data Book 1997 of Plants and Animals in Denmark
Wiberg‐Larsen P., 1984, Stoneflies and Mayflies
Wright J.F., 2000, Assessing the Biological Quality of Freshwaters: RIVPACS and Similar Techniques
Zelinka M., 1961, Zur Präzisierung der biologischen Klassifikation der Reinheit fließender Gewässer, Archiv für Hydrobiologie, 57, 389