Flückigersee

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Flückigersee
Freiburgerseen.png
Location of the Flückigersee (4) in the urban district of Freiburg
Geographical location Baden-Württemberg
Tributaries mainly groundwater
Drain none (groundwater)
Location close to the shore Freiburg in Breisgau
Data
Coordinates 48 ° 0 '38 "  N , 7 ° 49' 4"  E Coordinates: 48 ° 0 '38 "  N , 7 ° 49' 4"  E
Flückigersee (Baden-Wuerttemberg)
Flückigersee
Altitude above sea level 240  m
surface 10 ha
Maximum depth 25 m

particularities

artificial lake

Template: Infobox Lake / Maintenance / EVIDENCE AREA Template: Infobox Lake / Maintenance / EVIDENCE MAX DEPTH

The Flückigersee is a 10 hectare lake in the Freiburg district of Betzenhausen .

It was created when the building materials company Flückiger was mining sand and gravel here in the 1920s.

The Flückigersee

In 1983, the dismantling was stopped because the area was more and more inhabited. In 1986 the lake became part of the state horticultural show site, today's Seepark .

In 2000, the deepest part of the lake was around 25 meters deep; from 1992 a depth of over 29 meters is documented. The water quality is generally good, but cercaria live in the lake , which can cause cercariae dermatitis after swimming .

When the city of Freiburg examined the water quality of the municipal quarry ponds in 1999, a strong eutrophy was found , especially at the Flückigersee . As a result, the community and student project Flückiger See was founded in the eco-station in order to preserve the Flückigersee.

To combat the overpopulation of up to 40 swans, a pair of swans was fed with special food as part of the alpha swans model project . The territorial behavior of these strengthened swans has kept the lake free from foreign swans since 2001 .

In 2002 a limnological office was commissioned to collect the ecological key data on the lake. The results were published by a local council resolution. They state that the main reason for nutrient pollution is an increased phosphorus content , which is caused by inflowing groundwater. The phosphorus probably comes from debris that was dumped into the lake after the bombing of November 27, 1944 . The lake used to be further east, where the rubble railway from neighboring Stühlinger , operated from 1947 to 1949, ended. In the rubble were the remains of the phosphorus bombs , 255 tons of which were used during the attack.

In 1997 and 2001 the lake was cleared of rubbish and rubbish by volunteers. A similar action took place in the summer of 2013 and was initiated by a diving school from Ringsheim and members of Sea Shepherd . As part of this action, an attempt was also made to capture some of the approximately 200 turtles that are now living in the lake (mainly red -cheeked and yellow-bellied ear turtles ). However, it was only possible to capture two animals. The turtles are abandoned domestic animals that endanger the lake ecosystem due to their high life expectancy and their need for food.

Individual evidence

  1. ↑ a b Water City Plan Freiburg: Flückiger See. ( Memento of May 3, 2014 in the Internet Archive ) Accessed July 3, 2010.
  2. ↑ flueckigersee.de: Sludge layer control on the Seegrund - AG water quality , accessed on February 25, 2011.
  3. ↑ fudder.de: Breisgau-lake Test (1): sea world. ( Memento of July 17, 2010 in the Internet Archive ) Accessed July 3, 2010.
  4. ↑ flueckigersee.de: Wir über uns , accessed on February 25, 2011.
  5. ↑ a b oekostation.de: Citizens' Project Flückiger See , accessed on February 25, 2011.
  6. ^ Freiburg municipal council, 1st meeting of the environmental committee: Improvement of the water quality of the Flückiger lake here: Interim report on limnology and contaminated site exploration. Template UA-05/002, available online at http://www.freiburg.de/ratsinfo
  7. ↑ News (period: May 1st, 2004 - May 15th, 2004) (No longer available online.) Stuehlinger-online.de, archived from the original on July 8, 2004 ; Retrieved September 15, 2012 .
  8. ^ Lars Bargmann: Phosphorus bombs in the rubble . In: Badische Zeitung. November 24, 2003, accessed February 26, 2011.
  9. ↑ Flückigersee is being cleaned - joint action between the diving school from Ringsheim and Sea Shepherd Germany. ( Memento from September 28, 2013 in the Internet Archive ) freiburg.de, September 4, 2013, accessed on September 22, 2013.
  10. ↑ Simone Lutz: Freiburg: Seeputzete: Divers fish only two turtles from the Flückigersee . In: Badische Zeitung. September 8, 2013, accessed September 22, 2013.

Web links

Commons : Flückigersee  - Collection of images, videos and audio files