Seasonal water quality of shallow and eutrophic Lake Pamvotis, Greece: implications for restoration

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dc.contributor.authorRomero, J. R.en
dc.contributor.authorKagalou, I.en
dc.contributor.authorImberger, J.en
dc.contributor.authorHela, D.en
dc.contributor.authorKotti, M.en
dc.contributor.authorBartzokas, A.en
dc.contributor.authorAlbanis, T.en
dc.contributor.authorEvmirides, N.en
dc.contributor.authorKarkabounas, S.en
dc.contributor.authorPapagiannis, J.en
dc.contributor.authorBithava, A.en
dc.date.accessioned2015-11-24T18:35:49Z
dc.date.available2015-11-24T18:35:49Z
dc.identifier.issn0018-8158-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/17140
dc.rightsDefault Licence-
dc.subjectshallow lakesen
dc.subjectwater qualityen
dc.subjecteutrophicationen
dc.subjectrestorationen
dc.subjecthypersaline mono lakeen
dc.subjectphosphorus releaseen
dc.subjectmicrocystis-aeruginosaen
dc.subjecttop-downen
dc.subjectnitrogenen
dc.subjectnutrienten
dc.subjectsedimenten
dc.subjectbiomanipulationen
dc.subjectzooplanktonen
dc.subjectcaliforniaen
dc.titleSeasonal water quality of shallow and eutrophic Lake Pamvotis, Greece: implications for restorationen
heal.abstractLake Pamvotis is a moderately sized (22 km(2)) shallow (z(avg)=4 m) lake with a polymictic stratification regime located in northwest Greece. The lake has undergone cultural eutrophication over the past 40 years and is currently eutrophic (annual averages of FRP=0.07 mg P l(-1), TP=0.11 mg P l(-1), NH(4)(+)=0.25 mg N l(-1), NO(3)(-)=0.56 mg N l(-1)). FRP and NH(4)(+) levels are correlated to external loading from streams during the winter and spring, and to internal loading during multi-day periods of summer stratification. Algal blooms occurred in summer (July-August green algae, August-September blue-green algae), autumn (October blue-green algae and diatoms), and winter (February diatoms), but not in the spring (March-June). The phytoplankton underwent brief periods of N- and P-limitation, though persistent low transparency (secchi depth of 60-80 cm) also suggests periods of light limitation. Rotifers counts were highest from mid-summer to early autumn whereas copepods were high in the spring and cladocerans were low in the summer. Removal of industrial and sewage point sources a decade ago resulted in a decrease in FRP. A phosphorus mass balance identified further reductions in external loading from the predominately agricultural catchment will decrease FRP levels further. The commercial fishery and lake hatchery also provides opportunities to control algal biomass through biomanipulation measures.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.secondary<Go to ISI>://000177101300006-
heal.journalNameHydrobiologiaen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2002-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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