Water Framework Directive Marine Plants Task Team Tools Paper ...

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Table 8: Calculation of ‘deshoring’ factor for all possible shore description values based on the predicted levels of species richness from a reduced species list Species Richness 70 60 50 40 30 20 10 0 Shore Predicted Deshoring Description Richness Factor 5 22.66 1.72 6 23.62 1.65 7 24.70 1.58 8 25.89 1.51 9 27.22 1.44 10 28.70 1.36 11 30.36 1.29 12 32.20 1.21 13 34.25 1.14 14 36.53 1.07 15 39.08 1.00 16 41.91 0.93 17 45.07 0.87 18 48.58 0.80 19 52.50 0.74 20 56.87 0.69 6 8 10 12 14 16 18 20 Shore Description Figure 12: Exponential model for the relationship between shore description and species richness using a reduced species list.
The final metric system works on a sliding scale, as with the full species list, to enable an accurate EQR value to be calculated for each of the different parameters, an average of these values is then used to establish the final classification status. For the calculation of the EQR value for each of the parameters this requires two slightly different calculations. For species richness, proportion of red species and the ESG ratio, all of which increase in value with increasing EQR, use the following equation: Class Range = CR Class Width = CW EQR Band Range = BR EQR Band width = BW EQR = {(value – lower CR)/(CW) x EQR BW} + lower EQR BR For the proportion of green species, proportion of opportunist species and shore description, all of which decrease in value with increasing EQR, use the following equation: Class Range = CR Class Width = CW EQR Band Range = BR EQR Band width = BW EQR = Upper EQR BR {(value – lower CR)/(CW) x EQR BW}
Page 1 and 2: Water Framework Directive Marine Pl
Page 3 and 4: dates will result in a larger speci
Page 5 and 6: Figure 2: Sites included within the
Page 7 and 8: fauna and flora and exposed shores
Page 9 and 10: Table 1: Field sampling sheet to re
Page 11 and 12: These different community factors c
Page 13 and 14: All datasets were tested for normal
Page 15 and 16: Table 3: Calculation of ‘deshor
Page 17 and 18: Development of a Reduced Species Li
Page 19 and 20: certain species are only present on
Page 21 and 22: Figure 11: Map of the UK and Republ
Page 23 and 24: Table 4: Species lists for each of
Page 25: Table 6: Boundaries values for RSL,
Page 29 and 30: Table 10: Final quality status and
Page 31 and 32: EQR Value EQR Value 1.00 0.80 0.60
Page 33 and 34: EQR Value 1.00 0.80 0.60 0.40 0.20

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