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Development and validation of methods for integrated assessment of ecological status of rivers and lakes to support RBMP Lake macrophytes Warsaw, 9-10.

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Presentation on theme: "Development and validation of methods for integrated assessment of ecological status of rivers and lakes to support RBMP Lake macrophytes Warsaw, 9-10."— Presentation transcript:

1 Development and validation of methods for integrated assessment of ecological status of rivers and lakes to support RBMP Lake macrophytes Warsaw, 9-10 February 2011 UWM:Hanna Ciecierska Joanna Ruszczyńska Jan Dziedzic Piotr Dynowski IEP: Agnieszka Kolada NIVA: Marit Mjelde Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund

2 To perform field survey of macrophytes in lakes of Wel river catchemnt by different surveyors and using different methods – COMPLETED To test and validatie macrophyte method used in Poland in lake ecological status assessment – COMPLETED To test and validate the applicability of different macrophyte metrics describing taxonomic composition and abundance in lake ecological status assessment – COMPLETED To estimate an uncertainty and risk of misclassification in lake assessment based on macrophytes concerning different surveyours and different methods – RUNNING To combine macrophyte-based assessment with assessment based on other biological elements, physico-chemical parameters and hydromorphology Aims:

3 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Relationships between macrophyte indicators and water quality parameters; values of determination coef. R 2 >0,6 marked in bold ESMI responds good enough to be applied for lake assessment !!! Testing ESMI:

4 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Testing ESMI: RELATIONSHIPS BETWEEN ESMI AND WATER QUALITY PARAMETERS Relationships almost linear !!!

5 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Uncertainty: SOURCES OF UNCERTAINTY IN MULTIMETRIC ESMI 12 lakes surveyed by using four survey methods of different level of accuracy: Polish monitoring protocol based on transects and plant communities (synecological approach) method based on transects and plant species (autecological approach) method based on phytolittoral mapping sigma-association method (one lake = one reléve) METHOD ACCURACY 12 lakes surveyed on 6 to 26 spatially distributed transects: SPATIAL VARIABILITY 10 lakes surveyed by using Polish original monitoring protocol by two or three independent surveyors: WORKER ERROR

6 Method: Dąbrow a Wlk. Dąbrow a Mała Rumi an Zarybi- nek Tarczy nskie Grądy Lidzba rskie Kiełpin -skie Hartow ieckie ZwiniarzNeliwaWlecz No of transects 2621221116221811101266 ESMI_trans XXXXXXXX XXXXXXXXXXX ESMI_sp XXXXXXXXXXXX ESMI_map XXXXXXXXXXXX ESMI_sigma XXXXXXXXXXXX Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund MATRIX OF SURVEY METHODS AND NUMBER OF SURVEYORS PER LAKE Uncertainty:

7 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Data: ESMI DISTRIBUTION ACC. TO 4 SURVEY METHODS OF DIFFERENT ACCURACY

8 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund FOUR METHODS OF DIFFERENT LEVEL OF SAMPLING ACCURACY Data:

9 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Data: ESMI DISTRIBUTION ACC. TO 2 or 3 SURVEYORS

10 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund LAKES SAMPLED BY TWO OR THREE INDEPENDENT SURVEYORS Data:

11 75perc. from reference sites minimum value recorded in database division in log scale 1 0 LCB1LCB2 Ecological state Range of ESMI value High 0,680 - 1,000 Good 0,340 - 0,6790,270 - 0,679 Moderate 0,170 - 0,3390,110 - 0,269 Poor 0,090 - 0,1690,050 - 0,109 Bad < 0,090< 0,050 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Classification: Original class boundaries of ESMI - range LOG-devided:

12 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Classification: ORIGINAL ESMI CLASSIFICATION:

13 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund WISERBUGS results for original class boundaries

14 1 0 75perc. from reference sites equal division!! Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Classification: New suggested class boundaries of ESMI - range devided equally:

15 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund WISERBUGS results for suggested new class boundaries

16 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund Classification: NEW ESMI CLASSIFICATION:

17 Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund

18 Thank you for your attention !!! Polsko-Norweski Fundusz Badań Naukowych / Polish-Norwegian Research Fund

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