Macroalgae and phytoplankton as indicators of ... - Naturstyrelsen

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A Total algal cover (%) 100 80 60 40 BAD Ref. H-G G-M M-P P-B 2001 2003 2005 B Cummulated algal cover (%) 250 200 150 100 50 0 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 C Cum. cover of late successionals (%) 140 120 100 80 60 40 20 0 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 D Cum. cover of opportunists (%) 225 200 100 80 60 40 20 0 HIGH MODERATE BAD GOOD POOR Ref. H-G G-M M-P P-B 2001 2003 2005 E Fraction of opportunists (%) 80 70 60 50 40 30 20 BAD POOR MODERATE GOOD HIGH Ref. H-G G-M M-P P-B 2001 2003 2005 F Number of late successionals 9 8 7 6 5 4 3 2 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 Figure 3.9 Reference levels, class borders and actual levels of various algal variables in the Sound: Total algal cover (A), Cumulated algal cover (B), Cumulated cover of late-successionals (C), Cumulated cover of opportunists (D), fraction of opportunists (E) and number of late-successional algal species (F). Algal variables are modelled for a water depth of 7 m. 46
A Total algal cover (%) 100 95 90 85 80 75 50 25 0 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 B Cummulated algal cover (%) 450 375 250 225 200 175 150 125 100 75 50 25 0 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 C Cum. cover of late successionals (%) 120 100 80 60 40 20 0 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 D Cum. cover of poortunists (%) 500 400 160 140 120 100 80 60 40 20 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 E Fraction of opportunists (%) 100 80 60 40 20 BAD POOR MODERATE GOOD HIGH Ref. H-G G-M M-P P-B 2001 2003 2005 F Number of late successionals 9 8 7 6 5 4 3 2 1 HIGH GOOD MODERATE POOR BAD Ref. H-G G-M M-P P-B 2001 2003 2005 Figure 3.10 Reference levels, class borders and actual levels of various algal variables in Nivå Bay: Total algal cover (A), Cumulated algal cover (B), Cumulated cover of late-successionals (C), Cumulated cover of opportunists (D), fraction of opportunists (E) and number of late-successional algal species (F). Algal variables are modelled for a water depth of 7 m. 47
Page 1 and 2: National Environmental Research Ins
Page 3 and 4: National Environmental Research Ins
Page 5 and 6: Contents Summary 5 Sammenfatning 6
Page 7 and 8: Summary During the implementation o
Page 9 and 10: 1 Introduction This report is part
Page 11 and 12: Figure 2.1 Long-term trends in nitr
Page 13 and 14: Figure 2.2 Surface TN versus salini
Page 15 and 16: 2.2.2 Nitrogen input-TN relationshi
Page 17 and 18: Flensborg Fjord on the ranked scale
Page 19 and 20: Table 2.4 Suggested reference condi
Page 21 and 22: the gradient. These responses have
Page 23 and 24: Table 3.1 Overview of sampling area
Page 25 and 26: We assumed that mean values from th
Page 27 and 28: and 2005), averaged over the months
Page 29 and 30: The second component of the Spanish
Page 31 and 32: The variance of a macroalgae indica
Page 33 and 34: The levels of mean cumulated algal
Page 35 and 36: Figur 3.5 continued Modelled mean l
Page 37 and 38: while the fraction of opportunists
Page 39 and 40: 3.4.2 Physico-chemical variables Ph
Page 41 and 42: Figure 3.7 continued Mean modelled
Page 43 and 44: 3.4.3 Algal variables in relation t
Page 45 and 46: Figure 3.8 continued Cumulated cove
Page 47: inputs (Figures 3.9 and 3.10) where
Page 51 and 52: A 100 B 140 Total algal cover (%) 8
Page 53 and 54: A response to changes in nutrient c
Page 55 and 56: In its present form the Spanish ind
Page 57 and 58: 3.6 Conclusions • All algal varia
Page 59 and 60: gime shift after changing the sluic
Page 61 and 62: Figure 4.3 Estimated site-specific
Page 63 and 64: from Randers Fjord and Odense Fjord
Page 65 and 66: moderate boundaries. Reference dept
Page 67 and 68: 4.3 Evaluation of the precision of
Page 69 and 70: The 90-percentile was clearly subst
Page 71 and 72: 5 Conclusions and recommendations R
Page 73 and 74: 6 References Andersen, J., Markager
Page 75: Nielsen, S.L., Sand-Jensen, K., Bor
Page 78 and 79: 76 Appendix 1. Reference levels and
Page 84 and 85: Appendix 7. Modelled mean levels of
Page 86 and 87: Appendix 9. Modelled mean levels of
Page 88 and 89: Appendix 11. Modelled mean levels o
Page 90 and 91: Appendix 13. Results of power analy
Page 92 and 93: Appendix 18. Results of power analy
Page 94 and 95: NERI Technical Reports NERI’s web
Page 96: of Danish coastal waters 683 Macroa

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