Rožmberk is a fish pond in the

South Bohemian Region The South Bohemian Region () is an administrative unit (''Regions of the Czech Republic, kraj'') of the Czech Republic, located mostly in the southern part of its historical land of Bohemia, with a small part in southwestern Moravia. The western ...

of the

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

. It was founded at the end of the 16th century and is part of the Třeboň fishpond system. With an area of , it is the largest fish pond in the world.

Geography and parametres

Rožmberk is located in the

, about east of

České Budějovice České Budějovice (; ) is a city in the South Bohemian Region of the Czech Republic. It has about 97,000 inhabitants. The city is located in the valley of the Vltava River, at its confluence with the Malše. České Budějovice is the largest ...

and next to the town of

Třeboň Třeboň (; ) is a spa town in Jindřichův Hradec District in the South Bohemian Region of the Czech Republic. It has about 8,300 inhabitants. The historic town centre with the castle complex is well preserved and is protected as an Cultural monum ...

. It is part of the Třeboň fishpond system, which is a set of several hundred fish ponds. It was built as a reservoir on the Lužnice River, whose natural flow continues beyond the dam. The artificially created channel Zlatá stoka also passes through the pond. The so-called economic area of the pond (the area it occupies under standard conditions) is , and it has a maximum depth is . The cadastral area of the pond is . The difference between the economic and cadastral area is the area where the water spills when the standard level rises. The dam is long and dams the valley floodplain of the Lužnice River. The dam is filled with local materials. At its widest point, it is 55–60 m wide at the base of the dam. It is up to 12 m at the dam's crown. The height of the dam is 11 m.

History

The pond was designed and built under the guidance of Jakub Krčín, working for the

Bohemia Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historic ...

n aristocratic Rosenberg family () and it is named after that family. In the 16th century, many fish ponds were established throughout South Bohemia, and there are several other large ponds in the vicinity of Rožmberk Pond, including Velký Tisý, Svět and Opatovický. At the time of creation of Rožmberk Pond, its main task was to regulate the frequent floods caused by the Lužnice. The work started in 1584 and was finished in 1590. The original area was allegedly and the volume was up to 50 milion m³. The current main outlet was built in 1916–1918 on the site of the original outlet.

Use

The pond is primarily used for fish farming. It is the largest in the world in the category of artificially created bodies of water intended primarily for fish farming. The pond is owned by the Rybářství Třeboň a.s. company, which is the largest producer of freshwater fish in Europe. The largest volume of farmed fish is Eurasian carp. Other farmed fish species are

zander The zander (''Sander lucioperca''), sander or pikeperch, is a species of ray-finned fish from the Family (biology), family Percidae, which also includes perch, Gymnocephalus, ruffe and Darter (fish), darter. It is found in freshwater and brackis ...

catfish Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not ...

tench The tench or doctor fish (''Tinca tinca'') is a freshwater, fresh- and brackish water, brackish-water fish of the order Cypriniformes found throughout Eurasia from Western Europe including Great Britain, Britain and Ireland east into Asia as far ...

, pike, grass carp, silver carp,

common bream The common bream (''Abramis brama''), also known as the freshwater bream, bream, bronze bream, carp bream or sweaty bream, is a European species of freshwater fish in the family Leuciscidae. It is now considered to be the monotypic, only speci ...

and perch. In the right front part of the outlet there is an intake for a small hydroelectric power plant.

Protection of nature

The pond is situated within the Třeboň Protected Landscape Area. In addition, the eastern part of the pond and its shore, including part of the flow of the Lužnice River, is protected as the Výtopa Rožmberku Nature Reserve. It has an area of . The object of protection is an extensive complex of

littoral The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely i ...

vegetation of the pond and adjacent wet meadows with many valuable wetland communities and a number of protected and endangered

taxa In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...

References

External links

Bohemia - A Year in the Wetlands - The Secrets of Nature Documentary
on youtube.com {{DEFAULTSORT:Rozmberk Pond Artificial lakes of the Czech Republic Geography of the South Bohemian Region Jindřichův Hradec District Fish ponds RRozmberk

Geography and parametres

History

Use

Protection of nature

See also

References

External links