Bystřice is a
river
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of w ...
in the
Czech Republic
The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...
, draining south from its source near
Pecka through
Miletín
Miletín is a town in Jičín District in the Hradec Králové Region of the Czech Republic. It has about 900 inhabitants.
History
The first written mention of Miletín is from 1124.
Notable people
*Diviš Bořek of Miletínek (?–1438), Hussite ...
,
Hořice
Hořice (, also known as Hořice v Podkrkonoší; german: Horschitz) is a town in Jičín District in the Hradec Králové Region of the Czech Republic. It has about 8,600 inhabitants.
Administrative parts
Villages of Březovice, Chlum, Chvalina, ...
,
Mokrovousy,
Nechanice
Nechanice (; german: Nechanitz) is a town in Hradec Králové District in the Hradec Králové Region of the Czech Republic. It has about 2,300 inhabitants.
Administrative parts
Villages of Komárov, Lubno, Nerošov, Sobětuš, Staré Nechanice, S ...
,
Boharyně,
Kratonohy and merging with
Cidlina
Cidlina () is a river in the Czech Republic, draining south from its source in Tábor hill near Lomnice nad Popelkou through Jičín, Nový Bydžov and Chlumec nad Cidlinou, merging with the Elbe at Libice nad Cidlinou. Cidlina is 87.3 kilometres ...
at
Chlumec nad Cidlinou
Chlumec nad Cidlinou (; german: Chlumetz an der Zidlina) is a town in Hradec Králové District in the Hradec Králové Region of the Czech Republic. It has about 5,600 inhabitants.
Administrative parts
The town is made up of town parts of Chlume ...
. It is 62.7 km long, and its basin area is 379 km
2.
A survey conducted in 2010 showed that the Bystřice River was inhabited by a total of 21 species of aquatic
molluscs
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estim ...
, out of which 11 were
gastropods
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. The ...
and the remaining 10 were
bivalves. Most of the recorded species were common ones. Although previous researches had shown the river to have an even higher number of species, the most notable find of the research in 2010 was the increase in the alien
Potamopyrgus antipodarum
The New Zealand mud snail (''Potamopyrgus antipodarum'') is a species of very small freshwater snail with a gill and an operculum. This aquatic gastropod mollusk is in the family Tateidae.
It is native to New Zealand, where it is found throug ...
and
Physella acuta
''Physella acuta'' is a species of small, left-handed or sinistral, air-breathing freshwater snail, an aquatic gastropod mollusk in the family Physidae. Common names include European physa, tadpole snail, bladder snail, and acute bladder snail ...
species. On the other hand, there was also the delightful discovery of the presence of the endangered bivalve
Unio crassus
''Unio crassus'', the thick shelled river mussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. MolluscaBase eds. (2023). MolluscaBase. Unio crassus Philipsson, 1788. Accessed through: ...
, with an increased population density of the species as compared to a few years ago.
References
External links
* Beran L. (2011). "Příspěvek k poznání vodních měkkýšů evropsky významné lokality Bystřice se zaměřením na populaci velevruba tupého (''Unio crassus'').
contribution to the knowledge of aquatic molluscs of the Bystřice SCI focused on the population of ''Unio crassus'']." ''Malacologica Bohemoslovaca'' 10: 10–17
PDF
Rivers of the Hradec Králové Region
{{CzechRepublic-river-stub