Ecosystem and human health assessment to define environmental management strategies: the case of long-term human impacts on an Arctic lake / Moiseenko T. I., Gashkina N. A., Voinov A. A. [et al.] // The Science of the Total Environment. - 2006. - Т. 369, № 1-3. - С. 1-20.

TI. Moiseenko et §l. /Science o f the Total Environment 369 (2006) 1-20 7 Table 3 Main indicators of community conditions for key periods of Lake Bol’shaya Imandra ecosystem modification Indicators Reference condition Intensive pollution and degradation Decreasing pollution and revitalization Phytoplankton 1)1930 and earlier 2)1994-1996 (August) 2003 (August) Chlorophyll 0.1 - 0.5 3.8±0.9 3.6±0.4 “a”, mg/m3 Biomass, g/m3 0.3-0.5 3.6±0.5 3.4±0.3 Number, mill. cell/l 0.01-0.3 3.8±0.3 2.2 ±0.1 *Biodiversity 3.0-3.5 2.5±0.2 3.1 ±0.2 H, bit/ind %B, Stehpanodiscus 0.5 6± 1.7 8±0.7 %B, Cryptomonas 0.3 17±2.5 15±1.3 %B, Bluegreen 2-4 9±1.2 11±0.5 %B, Green 5.1 21 ±1.9 20±0.7 Dominating 1)Aulacoseira distans , A. italica , A. 2)Aulacoseira islandica , Rhizosolenia , 9)Cryptomonas sp., Stephanodiscus sp., complexes islandica , Asterionellaformosa , Eudorina elegans, Pandorina morum, A. islandica , Cyclotella sp., Synedra Cyclotell§ comt§, T§bell§ri§fenestr§t§, Cryptomonas sp., Stephanodiscus sp., sp., Asterionellaformosa , Pandorina Dinobryon divergens, An§b§en§ sp. Asterionella formosa , Sphaerocyctis morum , Anabaena sp., Limnothrix schroeteri planctonica , Tabellariafenestrate Zooplankton 3)1930 and earlier 4)1994-1996 (August) 1998-2003 (August) Biomass, g/m3 0.25-0.30 1.71 ±1.07 1.21 ± 0.91 Number, th. 10-100 271.3±139.2 107.14±99.52 ind/m3 *Biodiversity 2.5-3.0 2.3±0.5 2.53±0.36 H, bit/ind % B, Rotatoria 10-20 44±17 20±11 Dominating y)Kellicotti§ longispina, Conochilus 4)Sonchaeta pectinata, K. cochlearis, 9)A. priodonta, P vulgaris, B. hudsoni, complexes unicornis, C. hippocerpis, Bosmina Polyarthra sp., Ploesoma sp., Filinia K. cochlearis, K. quadrata, K. obtusirostris , Daphnia longispina v. sp., B. o'tusirostris, Daphnia sp., longispina, N. caudata, B. hyalina , Cyclops scutifer , Eudiaptomus Mesocyclops sp., Cyclops sp., obtusirostris , H. gibberum gracilis, Holopedium gibberum Eudiaptomus sp. Macro-zoobenthos 5)1930 and earlier 6)1978-1986 (October) 7)1998 (October) Biomass, g/m2 4)0.3-0.8 21.3-49.0 12.9±6.7 Number, th. 0.4-0.7 23.9-62.7 6.2±5.4 ind/m2 Biodiversity H, bit/ind 3.5 1-2.2 1.1 Dominating 5)Trissocladius paratatricus, Tanytarsus 6)Limnodrilus hofmeisteri , Euiliodrilus ^Monopo^ia affmis, Tubifex tubifex , complexes spp., Procladius spp., Monoporeia hammoniensis , Tubifex tubifex , Chironomus spp., Tanytarsus spp. affinis , Limnodrilus hoffmeisteri Chironomus spp. Ichthyofauna 5)1930 and earlier 6)1978-1986 1998-2003 Fish production, 4 <1 No dates kg/ha Dominating )Salmo trutta (L.), Coregonus lavaretus )C. lavaretus, C. albila, Esox lucius, 9)Coregonus lavaretus, C. albula, Esox complexes (L.), C. albula (L.), Salvelinus alpinus Perca fluviatilis , Phoxinus phoxinus lucius, Perca fluviatilis, Osmerus (L.), Thymlus thymallus (L.) (L.) eperlanus (L.) *The information index of the species (Shannon’s index). Based on data from: X)1930 — Voronikhin (1935), Poretskij et al. (1934); 2)1981—1987 — Moiseenko and Yakovlev (1990), Sharov (2002); 3)1930 — Krokhin and Semenovich (1940); 4)1981—1987 — Moiseenko and Yakovlev (1990), Vandish (2000, 2002); 5)1930 — Krogius (1930), Krokhin and Semenovich (1940); 6)1978-1996 — Moiseenko and Yakovlev (1990), Yakovlev (1998); 7)1998 — Iliyaschuk, 2002b; 8)1930 — Krogius (1930); 9)2003 field studies by authors.