Report on Harmonisation of freshwater biological methods
Report on Harmonisation of freshwater biological methods Report on Harmonisation of freshwater biological methods
Phytobenthos per GIG1008060%40200AL AT BA CE EC ME NOintercalibration GIGFigure 12. Percentage measuring phytobenthos in the GIGs.14. In cases where phytobenthos is sampled, the most frequent sampling frequency is2-6 times per year, but in Mediterranean countries it is only sampled once a year (Fig.13). The samples are taken in either one lake station (all AT and EC), or 2-10 stations(most BA and CE), or more than 10 stations (all ME and most AL) (Fig. 14).Sampling frequencyNOMEECCEBAATAL1x yr2-6x yr7-12x0 20 40 60 80 100%Figure 13. Phytobenthos sampling frequency in the GIGs.54
Sampling stations%1008060402001 2-10 +10Number of stationsALATBACEECMENOFigure 14. Phytobenthos sampling stations in the GIGs.15. As with chlorophyll a and phytoplankton, sampling is held during the vegetationgrowth period, spring and summer (Fig. 15). Sampling and metrics vary (Table 3).The habitats sampled differ, some countries sample epilithic and others epiphyticphytobenthos. The composition metrics are species composition, presence or absenceof species and indicator taxa. The quantity metrics are the relative abundance ofspecies, indicator taxa and excessive growth of nuisance species such as Cladophora.Sampling period100%806040200AL AT BA CE EC ME NOWholeYearVegetation periodSpringSummerAutumnFigure 15. Phytobenthos sampling period in the GIG’s.55
- Page 3 and 4: CONTENTSBackground and purpose of t
- Page 5 and 6: Background and purpose of the docum
- Page 7 and 8: States and candidate countries. Inf
- Page 9 and 10: classification, each of these being
- Page 11 and 12: BIOLOGICAL QUALITY ELEMENT: PHYTOPL
- Page 13 and 14: indicators, species lists, frequenc
- Page 15 and 16: 53. The identification and enumerat
- Page 17 and 18: 64. In general, this technique is t
- Page 19 and 20: RIVER BIOLOGICAL QUALITY ELEMENT: F
- Page 21 and 22: 84. The development of specific sta
- Page 23 and 24: practice guides for identification
- Page 25 and 26: 100. The information received from
- Page 27 and 28: Evaluation of the suitability of cu
- Page 29 and 30: group should update its primary fin
- Page 31 and 32: ReferencesAFNOR (Association Franç
- Page 33 and 34: EN ISO 8689-2 Water quality - Biolo
- Page 35 and 36: Lazaridou-Dimitriadou, M., C. Kouko
- Page 37 and 38: Shannon, C.E. and W. Weaver, 1949.
- Page 39: Annex I: Composition of the Geograp
- Page 43 and 44: Annex III: River biological assessm
- Page 45 and 46: Annex IV: Analysis of lake biologic
- Page 47 and 48: Number of sampling stations10080%60
- Page 49 and 50: IT 90% acetone spectrophotometricPT
- Page 51 and 52: 10. The sampling depth and volume s
- Page 53: PTESFIIE5667-2/98 Romanianstandardi
- Page 57 and 58: MACROPHYTES16. The aquatic Macrophy
- Page 59 and 60: Plants sampled per GIG1008060%40Eme
- Page 61 and 62: NO qualitativ method species number
- Page 63 and 64: indicators, species lists, frequenc
- Page 65 and 66: 26. The sampling frequency is varia
- Page 67: CEN/TC 230/WG 2/ TG 4 N28, 2 nd wor
- Page 70 and 71: programs are based only on the diat
- Page 72 and 73: 21. Some countries like France, Est
- Page 74 and 75: Table 1. European methods for monit
- Page 76 and 77: countries also covers Non-EU Member
- Page 78 and 79: 49. The Danish Stream Fauna Index i
- Page 80 and 81: Hungary58. Since 2002 a modificatio
- Page 82 and 83: Acidification Index, based on the s
- Page 84 and 85: Identification is predominantly to
- Page 86 and 87: size of the net range between 250 t
- Page 88 and 89: water bug genus (Aphelocheirus) and
- Page 90 and 91: Table 5. Common abundance classific
- Page 92 and 93: 108. Process Assessment focuses on
- Page 94 and 95: Austria120. MuLFA: Ecological Integ
- Page 96 and 97: Sweden126. Swedish fish Index: Appe
- Page 98 and 99: ut comparisons have been made with
- Page 100 and 101: seasons for sampling are summer and
- Page 102 and 103: 102
Sampling stati<strong>on</strong>s%1008060402001 2-10 +10Number <strong>of</strong> stati<strong>on</strong>sALATBACEECMENOFigure 14. Phytobenthos sampling stati<strong>on</strong>s in the GIGs.15. As with chlorophyll a and phytoplankt<strong>on</strong>, sampling is held during the vegetati<strong>on</strong>growth period, spring and summer (Fig. 15). Sampling and metrics vary (Table 3).The habitats sampled differ, some countries sample epilithic and others epiphyticphytobenthos. The compositi<strong>on</strong> metrics are species compositi<strong>on</strong>, presence or absence<strong>of</strong> species and indicator taxa. The quantity metrics are the relative abundance <strong>of</strong>species, indicator taxa and excessive growth <strong>of</strong> nuisance species such as Cladophora.Sampling period100%806040200AL AT BA CE EC ME NOWholeYearVegetati<strong>on</strong> periodSpringSummerAutumnFigure 15. Phytobenthos sampling period in the GIG’s.55
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