Lakes and Watercourses

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Presentation of data When using these Environmental Quality Criteria, it is essential to present the data used and any adjustments that have been made to reference values. If the background data does not meet the sampling frequency and other requirements specified in each chapter (eg, the number of samples differs from the recommended number), this should be stated. Colour coding of classes 1 – 5 should use blue, green, yellow, orange and red, as follows. Class 1 ● Class 2 ● Class 3 ● Class 4 ● Class 5 ● 83
APPENDIX 1 List of species with trophic ranking scores for aquatic plants (cf Palmer et al. 1992). Where no indicator value is given, this is because none has been set. Submerged plants Isoetids Crassula aquatica 3 Baldellia ranunculoides 4 Isoetes echinospora 4 Subularia aquatica 4 Isoetes lacustris 5 Lobelia dortmanna 5 Limosella aquatica 5.3 Peplis portula 5.3 Ranunculus reptans 5.3 Pilularia globulifera 5.5 Elatine hydropiper 6 Littorella uniflora 6.7 Eleocharis acicularis 8.5 Elodeids Alisma gramineum Callitriche brutia (pedunculata) Callitriche cophocarpa Callitriche platycarpa Najas intermedia Najas minor Ranunculus fluitans Ruppia maritima Ruppia spiralis Sagittaria natans Utricularia australis (neglecta) Utricularia ochroleuca Potamogeton polygonifolius 3 Sparganium angustifolium 3 Juncus bulbosus 3.7 Scirpus fluitans 4 Sparganium friesii 4 Utricularia intermedia 4 Utricularia minor 4 Callitriche hamulata 5 Callitriche palustris (verna) 5 Myriophyllum alterniflorum 5.5 Nitella spp. 5.5 Potamogeton alpinus 5.5 Utricularia vulgaris 5.5 Potamogeton berchtoldii (pusillus) 7.3 Potamogeton gramineus 7.3 Potamogeton obtusifolius 7.3 Potamogeton perfoliatus 7.3 Potamogeton praelongus 7.3 Callitriche stagnalis 7.7 Hippuris vulgaris 7.7 Potamogeton compressus 7.7 (zosterif.) Callitriche obtusangula 8.5 Callitriche hermaphroditica 8.5 Chara spp. 8.5 Ceratophyllum submersum 8.5 Elodea canadensis 8.5 Potamogeton crispus 8.5 Ranunculus aquatilis 8.5 Ranunculus peltatus 8.5 Ranunculus trichophyllus 8.5 Hottonia palustris 9.0 Stratiotes aloides 9.0 84
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Environmental Quality Criteria - La
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TO ORDER Swedish Environmental Prot
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Reference Group Mats Bengtsson, Swe
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Summary This report on lakes and wa
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included. In addition to a large nu
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ased estimates are used. Given that
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TABLE 1. SUMMARY of parameters incl
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16 The current conditions scale in
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(in Swedish with English summary).
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conditions for watercourse flora an
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show the availability of nitrogen i
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Mean concentration of total phospho
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TABLE 9. DEVIATION from reference v
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Comments Classifications must be ba
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winter/spring, i.e. ice-covered per
Page 33 and 34: Light conditions Introduction Light
Page 35 and 36: TABLE 13. CURRENT CONDITIONS: turbi
Page 37 and 38: Acidity / acidification Introductio
Page 39 and 40: industrial pH). The change in acidi
Page 41 and 42: The pre-industrial concentration of
Page 43 and 44: very high degree of reliability and
Page 45 and 46: TABLE 19. CURRENT CONDITIONS: metal
Page 47 and 48: TABLE 22. DEVIATION from reference
Page 49 and 50: TABLE 24. (continued) Cu Zn Cd Pb C
Page 51 and 52: Swedish EPA (1993): Metals and the
Page 53 and 54: Assessment of current conditions TA
Page 55 and 56: TABLE 29. CURRENT CONDITIONS: poten
Page 59 and 60: References Cronberg, G., Lindmark,
Page 61 and 62: (see Appendix 1). If submerged and
Page 63 and 64: References Andersson, B. (1998): Va
Page 65 and 66: The genera in question and their tr
Page 67 and 68: Benthic fauna Introduction Benthic
Page 69 and 70: TABLE 41. CURRENT CONDITIONS: botto
Page 71 and 72: Comments The assessment must be bas
Page 73 and 74: has yielded better results than did
Page 75 and 76: TABLE 45. CURRENT CONDITIONS: fish,
Page 81 and 82: TABLE 48. (Contd.) Proportion of al
Page 86 and 87: APPENDIX 1 Ceratophyllum demersum 1
Page 88 and 89: APPENDIX 2 Calculation of index and
Page 90 and 91: APPENDIX 2 Table 1b. Indicator gene
Page 92 and 93: Genus Indicator value -------------
Page 94 and 95: APPENDIX 2 45 Planorbis sp. 46 Anis
Page 96 and 97: APPENDIX 2 214 Leuctra hippopus 215
Page 98 and 99: APPENDIX 2 384 Tinodes waeneri 385
Page 100 and 101: APPENDIX 2 (6) O/C index (Wiederhol
Page 102 and 103: APPENDIX 3 Dace Stäm Leuciscus leu
Page 106: REPORT 5050 Environmental Quality C
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