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| Titel: |
Quality Control of Drinking Water from the River Rhine with the Multispecies Freshwater Biomonitor |
| Auteur: |
Gerhardt, A. de Bisthoven, L. Janssens Penders, E. |
| Verschenen in: |
Aquatic ecosystem health & management |
| Paginering: | Jaargang 6 (2003) nr. 2 pagina's 159-166 |
| Jaar: |
2003-04 |
| Inhoud: |
The Multispecies Freshwater Biomonitor (MFB) based on quadropole impedance conversion technique is a "biological early warning system" (BEWS) for online water quality biomonitoring. The aim of this study was to test the MFB with two crustaceans (Gammarus pulex and Daphnia magna) in a drinking water processing plant at the River Rhine: 1) Sensitivity of the test species to short-term acid pulses and alarm-responses in the MFB were studied in the laboratory. 2) Long-term monitoring with Gammarus pulex and Daphnia magna in the MFB was performed in situ . A decrease in pH, especially below pH 6.8, resulted in a significant behavioural response of both species according to the Stepwise Stress Model. After a first escape response of D. magna , both species reacted similarly with decreased activity and G. pulex additionally with increased ventilation. G. pulex survived better than D. magna . The behavioural effects remained in the recovery phase. Long-term monitoring showed stable locomotory behaviour and better survival of G. pulex when compared to D. magna . The MFB can be recommended for drinking water control using G. pulex as test species. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 12 gevonden artikelen
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