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– Roofensee (Germany) –

Lake name: Roofensee Country: Germany GIG Region: CB
GIG Type: LCB1 Lake code: DG70 Altitude(m a.s.l.): 60
Area (km²): 0.54 Mean depth (m): 8.95 Mixing regime: Stratified
Alkalinity (m eq/l): ---- Retention time (yr): 1.18 Chlorophyll a (µg/l): 4.54
Total phosphorus (µg/l): 17.1 Eutrophication status: 1 - Low Hydromorphological status: 1 - Low

Description

Roofensee (Germany, Brandenburg) is located within the nature reserve area “Stechlin-Ruppiner-Land”. This oligo-mesotrophic lake is entirely surrounded by woodland. It is connected to other waters via the Polzowkanal, i.e. to the East with the small and big Wentowsee and subsequently with the river Havel and to the West with the Nehmitzsee and Lake Stechlin.

Former investigations of fish, macrophytes and phytoplankton in 2003 - 2008 confirmed the very good trophic status of this lake. But methane production of sediments is unusually high (Gonsiorczyk et al. 1996, IGB), which is accompained by accumulations of hydrosulfate in the hypolimnion. Within WISER all four Biological Quality Elements will be sampled.

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WISER: "Water bodies in Europe: Integrative Systems to assess Ecological status and Recovery"
Online: http://www.wiser.eu/programme/lake-assessment/sampling-sites/roofensee/index.php [date: 2017/09/22]
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