Bibersee (Fronreute)
| Beaver lake | |
|---|---|
| Geographical location |
Alpine foothills
|
| Tributaries | Groundwater, drainage |
| Drain | […] → Hühler Ach → Booser Ach → Schussen → Rhine → North Sea |
| Location close to the shore | Fronreute |
| Data | |
| Coordinates | 47 ° 51 '54 " N , 9 ° 33' 28" E |
| Altitude above sea level | 574 m above sea level NHN |
| surface | 3.2 ha |
| volume | 91,400 m³ |
| Maximum depth | 4.7 m |
| Middle deep | 2.9 m |
| Catchment area | 66 ha |
|
particularities |
|
The Bibersee is a still water in the area of the Baden-Württemberg community Fronreute in the district of Ravensburg in Germany .
location
The approximately three hectare large Bibersee naturally belongs to the Upper Swabian hill country . It belongs to the Blitzenreuter Lake District , lies west of the Blitzenreute district and east of the Fronhofen district at an altitude of 574 m above sea level. NHN .
The lake is surrounded by the Bibersee nature reserve of the same name .
description
The almost circular lake with a diameter of around 250 meters lies in a dead ice hole that formed at the end of the Worm Ice Age 16,000 years ago . He is mentioned for the first time in a deed of donation in 1090. In 1155, Emperor Friedrich I Barbarossa confirmed his possessions to the Benedictine monastery Weingarten , including the " Lacus Bibersee "; Since then the water has been used for fish farming .
Today the nutrient-poor lake has a narrow belt of water lilies and silted reed, as well as a limestone bog and whistle-grass meadows with emerging willow and buckthorn bushes in the edge zone .
Hydrology
The catchment area of the Bibersee covers around 66 hectares. With an area of 3.2 hectares and an average depth of 2.9 meters - the maximum is 4.7 meters - the lake contains around 91,400 cubic meters of water. It is fed from the groundwater and drainage; it drains over a trench to the Hühler Ach and on to the Schussen and Lake Constance .
ecology
| year | 1984 | 1991 | 1999 | 2007 |
| Total PO 4 - phosphorus (µg / l) | 74 | 54 | 46 | 31 |
| Chlorophyll a (µg / l) | 25th | 15th | 13 | |
| Chlorophyll a peak (µg / l) | 79 | 29 | 30th | |
| total inorganic nitrogen (mg / l) | 19th | 0.36 | 1.4 | 2.05 |
| Viewing depth (m) | 1.7 | 2.1 | 1.6 |
Flora and fauna
flora
Among the flora worthy of protection are the following plant species :
- Rush cutting ( Cladium mariscus ), also called Schneidried , a swamp plant from the sour grass family
- Yellow pond rose ( Nuphar lutea ), a species of the water lily family
- Common pond rush ( Schoenoplectus lacustris ), also from the sour grass family
- Ostrich loosestrife ( Lysimachia thyrsiflora ), a representative of the primrose family that grows up to 60 cm high
- White water lily ( Nymphaea alba ), also from the water lily family
fauna
In 1990 included eel , perch , bream , white bream , pike , carp , roach , rudd , tench and catfish to fish in the beaver lake, 2000, bleak and zander .
The fauna worth protecting include the following species:
- Small garnet eye ( Erythromma viridulum ), a member of the slender dragonfly family
- Pointed spot ( Libellula fulva ), a species from the family of the sailing dragonflies
- Western wedge damsel ( Gomphus pulchellus ), a species of dragonfly from the river damsel family
Individual evidence
LUBW
Official online waterway map with a suitable section and the layers used here: Bibersee and surroundings
General introduction without default settings and layers: State Institute for the Environment Baden-Württemberg (LUBW) ( notes )
- ↑ Height according to the blue lettering on the background layer topographic map .
- ↑ Lake area after the layer standing waters .
Other evidence
- ^ Hansjörg Dongus : Geographical land survey: The natural spatial units on sheet 187/193 Lindau / Oberstdorf. Federal Institute for Regional Studies, Bad Godesberg 1991. → Online map (PDF; 6.1 MB)
literature
- Topographic map 1: 25,000 Baden-Württemberg, as single sheet No. 8123 Weingarten
Web links
Lake Constance district : Andelshofer Weiher | Appenweiler Weiher | Degersee | Deisendorfer Weiher | Hunter's pond | Kreuzweiher | Langensee | Muttelsee | Neuweiher | Obermühleweiher | Raderacher Weiher | Schleinsee | Infirmary | Unterweiher | Wielandsee
District of Biberach : Ayweiher | Bathing lake | Bathing pond | Fuchsweiher | Linden pond | Niklassee | Olzreuter See | Reichenbacher Weiher | Rascals | Schlossmühleweiher | Castle pond | Schwaigfurter Weiher | Spitzweiher | Lake Zell
District of Ravensburg : Altshauser Weiher | Badsee | Beaver Lake | Pond | Blausee | Brunner pond | Buchsee | Deibersweiher | Ebenweiler Weiher | Egelsee | Elven pond | Ellerazhofer Weiher | Flappachweiher | Girasweiher | Great Ursee | Large pond | Guggenhauser Weiher | Chopper pond | Hammerweiher | Haslacher Weiher | Hengelesweiher | Herzogenweiher | Holzmühleweiher (Kißlegg) | Holzmühleweiher (Vogt) | Karsee | Small Ursee | Königseggsee | Krählohweiher | Lanzenreuter pond | Lengenweiler lake | Mahlweiher (Amtzell) | Mahlweiher (Aulendorf) | Mahlweiher (Bergatreute) | Metelis pond | Middle Sea | Mill pond | Neuravensburger Weiher | Upper Castle Pond | Upper Staudacher Weiher | Obersee | Rösslerweiher | Roterweiher | Schießstattweiher | Schlingsee | Castle lake | Castle pond | Schorrweiher | Dread Lake | Schwarzensee | Siggenhauser Weiher | Steeger See | City lake | City pond | Lower Staudacher Weiher | Vallereyer pond | Vorsee | Wannenberger pond | Wuhrmühleweiher
District of Sigmaringen : Illmensee | Monastery pond | Lausheimer Weiher | Ruschweiler See | Steidlesee | Lake Volzer | Wagenhauser Weiher | Zellerweiher
Lakes and ponds removed from the program: Argensee (2015) | Grundweiher (2010) | Rabbit pond (2010) | Hinterweiher (<2010) | Langwuhrweiher (2010) | Laubbacher Mühleweiher (2015) | Lautersee (<2010) | Metzisweiler Weiher (2010) | Upper pond (2010) | Premer Weiher (2010) | Reuteweiher (2010) | Rohrsee (2010) | Red pond (2015) | Scheibensee (<2010) | Stockweiher (2010) | Zellersee (<2010)