Abstract
According to the high number of registered microalgae (1,069 taxa), Lake Skadar represents one of the biodiversity hot spots of Europe. The lake is unstratified, due to its shallowness and vertical mixing caused by the wind-driven hydrodynamics. The main limiting factor for phytoplankton growth in Lake Skadar is the amount of phosphorus. The phytoplankton dynamics and distribution are generally governed by meteorological and hydrological factors that induce distinct temporal and spatial heterogeneity. The central, pelagic zone of the lake is characterized by the dominance of euplanktonic species, mostly centric diatoms, during the whole annual cycle. The western and northwestern, more isolated, and shallower parts of the lake have a greater abundance of greens and blue-greens (that overdominate diatoms during the summer) and a higher percentage of resuspended benthic-epiphytic forms. The average chlorophyll a concentration indicates mesotrophic conditions in Lake Skadar, but during midsummer, when the highest phytoplankton abundance and biomass occurs, the trophic level of the lake increases to eutrophy. Comparison to former phytoplankton data shows distinct differences in terms of the qualitative and quantitative composition of the phytoplankton community of Lake Skadar, which indicate lake eutrophication.
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References
Forti A (1902) Primi appunti per uno studio sul Phytoplancton del Lago di Scutari d’Albania (presentato da G. B. de Toni). Atti del Reale Istituto Veneto di Scienze, Lettere ed Arti 61:704–708
Brehm V, Zederbauer E (1905) Das September plankton des Skutari sees. Verh der Zool-Bot Gess 55:47–55
Gessner F (1934) Limnologischer Untersuchungen am, Skadar (Skutari). Glasn Bot Zavoda i Bašte Univ Beograd 3(1–2):56–62
Nedeljković R (1959) Skadarsko jezero: Studija organske produkcije u jednom karsnom jezeru. Posebno izdanje Biološkog instituta 4:1–156
Milovanović D (1959) Organska produkcija Skadarskog jezera – produkcija fitoplanktona. Zbornik radova Biološkog instituta 3:1–16
Milovanović D (1967) Rezultati jednogodišnjih ispitivanja primarne produkcije Skadarskog jezera. Arch Biol Sci 19(3–4):165–181
Milovanović D (1967) Populaciona struktura i karakter algi makrofitske zone Skadarskog jezera. Arch Biol Sci 19:1–12
Milovanović D (1968) Alge perifitona u asocijaciji Potameto perfoliati –Ranunculetum fluitans W. Koch. Skadarskog jezera. Polj Šum 14(3):15–20
Milovanović D, Živković A (1965) Plankton Skadarskog jezera (1957-1958). Zbornik radova Biološkog Instituta 8(4):1–36
Jerković L (1974) New diatom species of Skadar lake (Yugoslavia) – Cyclotella skadariensis. First Balkan Congress of Electron Microscopy, Sarajevo, pp 57–58
Petković S (1970) Ishrana skobalja (Chondrostoma kneri H., 1843) Skadarskog jezera. Polj Šum 14(4):12–20
Petković S (1971) Prilog poznavanju fitoplanktona Skadarskog jezera sa posebnim osvrtom na dinamiku brojnosti i ritam razvica Ceratium hirundinella (O.F. Müll) Schrank. Polj Šum 17(1):19–40
Petković S (1975) Prilog poznavanju taksonomije i distribucije Bacillariophyceae, u slatkim vodama Crne Gore. Polj Šum 21(2):33–56
Petković S (1975) Prilog poznavanju taksonomije i distribucije Euglenophyceae (Euglenaceae: genus Phacus) u slatkim vodama Crne Gore. Polj Šum 21(4):81–90
Petković S (1976) Prilog poznavanju taksonomije i distribucije Chlorophyta: Chlorococcales (Scenedesmus i Pediastrum) u slatkim vodama Crne Gore. Polj Šum 22(1):57–72
Petković S (1976) Prilog poznavanju taksonomije i distribucije Euglenophyceae (Euglenaceae: genus Trachelomonas) u slatkim vodama Crne Gore. Polj Šum 22(2):81–85
Petković S (1977) Nove vrste u flori alga Skadarskog jezera. Glas Republ Zavoda zašt prirode - Prirodnjackog muzeja 10:75–80
Petković S (1978) Osnovne karakteristike sastava i distribucije fitoplanktona jednog sublakustricnog izvora u Skadarskom jezeru. Polj Šum 25(2):29–46
Petković S (1979) Neke karakteristike florističkog sastava letnjeg fitoplanktona sublakustričnog izvora (“oka”) Ploča u Skadarskom jezeru. CANU, Glasnik odjeljenja prirodnih nauka 5:18–23
Petković S (1981) Phytoplankton of Lake Skadar. In: Beeton AM, Karaman GS (eds) The biota and limnology of Lake Skadar. University Veljko Vlahović, Institute of Biological and Medicine Research, Titograd, pp 163–189
Rakočević J, Hollert H (2005) Phytoplankton community and chlorophyll a as trophic state indices of Lake Skadar. Environ Sci Pollut R 12(3):146–152
Rakočević J (2012) Spatial and temporal distribution of phytoplankton in Skadar Lake. Arch Biol Sci 64(2):585–595
Rakočević J (2001) Epiphytic diatoms of Lake Skadar. Polj Šum 47(3–4):127–138
Rakočević J (2002) Structure and seasonal dynamic of Epiphtic diatom communities in Crnojevića River. Natura Montenegrina 1:41–58
Rakočević J (2002) Structure and seasonal dynamic of epiphytic diatom communities of Plavnica. Natura Montenegrina 1:59–76
Rakaj M (1999) Ecuria stinore e fitoplanktonit te Liqenit te Shkodres per periudhen pranvere vere. Bio Eko 2:3–7
Rakaj M (2000) Te dhena mbi krizofitet dhe ksanthofitet (Chrysophyceae dhe Xanthophyceae) e Liqenit te Shkodres. Bio Eko 3:9–11
Rakaj M, Kashta L (1999) Te dhena mbi algat e gjelbra (Chlorophyta) te Liqenit te Shkodres. Studime Biologjike, Tirane 1:107–118
Rakaj M, Hindak F, Hindakova A (2000) Phytoplankton species diversity of the Albanian part of Lake Shkodra in 1998-1999. Biologia, Bratislava 55(4):329–342
Rakaj M, Miho A, Kashta L (2001) Data on diatoms from Shkodra lake. Studime Biologjike 5–6:237–241
Rakocević J, Marash R (2002) Biodiversity database of the Shkodra/Skadar Lake, section: algae. Technical report of the project: “The promotion of the networks and exchanges in the countries of South - Eastern Europe”, Regional Environmental Center (REC), 52 pp
Organization for Economic Cooperation and Development (1982) Eutrophication of waters. Monitoring, assessment and control. OECD, Paris, 154 pp
Carlson RE (1977) A trophic state index for lakes. Limnol Oceanogr 22:363–369
Carlson RE (1983) Discussion on ‘Using differences among Carlson’s trophic state index values in regional water quality assessment’, by Richard A. Osgood. Water Resour Bull 19:307–309
Pantle R, Buck H (1955) Die Biologische Überwachung der Gewässer und die Darstellung der Ergebnisse. Gas-Wasserfach 96:609–620
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Rakočević, J. (2018). The Phytoplankton and Trophic State of Lake Skadar/Shkodra. In: Pešić, V., Karaman, G., Kostianoy, A. (eds) The Skadar/Shkodra Lake Environment. The Handbook of Environmental Chemistry, vol 80. Springer, Cham. https://doi.org/10.1007/698_2017_233
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DOI: https://doi.org/10.1007/698_2017_233
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