Neuravensburg pond

Neuravensburg pond
The "Neuravensburger Weiher"
Geographical location	Wangen im Allgäu , Ravensburg district , Baden-Württemberg , Germany
Tributaries	Moosbach, Zipfelgraben
Drain	Moosbach →  Obere Argen →  Lake Constance →  Rhine →  North Sea
Places on the shore	Neuravensburg
Location close to the shore	Wangen in the Allgäu
Data
Coordinates	47 ° 37 '52 "  N , 9 ° 45' 28"  E Coordinates: 47 ° 37 '52 "  N , 9 ° 45' 28"  E
Altitude above sea level	522  m above sea level NHN
surface	9.8 ha
volume	178,000 m³
Maximum depth	4.1 m
Middle deep	1.8 m
Catchment area	4.88 km²
particularities	FFH area

The Neuravensburger Weiher is a body of water in the Baden-Württemberg city ​​of Wangen im Allgäu in the Ravensburg district in Germany .

location and size

The pond, which was created around 1200, is around 8.6 kilometers southwest of the city center of Wangen, immediately south of the Neuravensburg district at an altitude of 522  m above sea level. NN . Today the pond is owned by the city of Wangen.

The surface of the Neuravensburger Weiher is 9.8  hectares , the length between 120 and 280 meters, the width 280 meters. At an average depth of 1.8 meters (maximum depth = 4.1 meters), the volume is around 178,000 cubic meters. The shore length is approximately 1,850 meters.

The catchment area covers an area of ​​around 488 hectares, 15 percent of which is forests and 75 percent is used for agriculture. The pond is traversed by the Moosbach coming from the south-southwest , which soon after flows into the Obere Argen ; The Zipfelgraben joins this from the right and northeast .

The main tributaries are the Moosbach from the southwest and the Zipfelgraben from the northeast. The Neuravensburger Weiher is drained via the Wiesenbach into the Obere Argen; it is thus part of the Rhine river system .

ecology

Plant nutrients and other trophy indicators

year	1997 *	1998 *	2003	2007	2008
Total PO 4 - phosphorus (µg / l)	106	154	191	144	151
Chlorophyll a (µg / l)	31	47	56	51	58
Chlorophyll a - peak (µg / l)	98	99	150	118	141
total inorganic nitrogen (mg / l)	1.08	0.65	0.70	1.02	0.95
Viewing depth (m)	1.3	1.0	1.4	0.8	1.4
* = without deep water values, otherwise annual averages

Nutrient concentrations in the inlets

year	1997 *	2003 *	2007
Total PO 4 - phosphorus (µg / l)	301	388	481
Nitrate nitrogen (mg / l)	7.26	6.31	8.76
total inorganic nitrogen (mg / l)	7.49	7.26	8.98
* = Three in 1997/2003, four in 2007

Together with the entry via the air (~ 3.8 kg), the Neuravensburger Weiher was polluted with 203 kg of phosphorus in 1997.

Nature reserve

The Neuravensburger Weiher is located in the nature reserve of the same name ( FFH area ). It is designated as a breeding and resting place for rare and endangered bird species, some of which are of European importance and the location of rare or endangered plant species.

fishing

The fishing leaseholder of the Neuravensburger Weiher is the fishing club Neuravensburg. Day tickets can be purchased for the pond. The fish population consists of catfish, pike, perch, carp, tench, rudd, roach and crucian carp.

Web links

• State Institute for the Environment, Measurements and Nature Conservation Baden-Württemberg (LUBW): Weblink
• Action program for the rehabilitation of Upper Swabian lakes

Individual evidence

1. ^ Ordinance of the Tübingen regional council on the »Neuravensburger Weiher« nature reserve of July 13, 2000 (Journal of Laws of September 15, 2000, p. 625)
2. ^ Fishing club Neuravensburg eV: waters. Retrieved April 24, 2020 .