Vliv vodohospodářských úprav v dolním Podyjí na vodní biocenózy = Influence of water management in lowland region of the Dyje River on water biocoenoses

To chci

This work contains the results of influence of water management in lowland region of the Dyje River on water biocenoses. Research was carried out in 1977-1984, when building of the three reservoirs were started. The effect of the newly built reservoirs on the biocoenoses of the reach immediately below it was mainly beneficial. Before the reservoir near Nové Mlýny was bulit, the fish population of the Dyje River was regularly threatened by poor water quality. After completion of the three reservoirs in 1989 the pollution brought by the Dyje River was largely removed by the purification processes in the reservoirs, so that the Dyje River became cleaner than it was. The better trophic conditions and water quality downstream of the reservoirs were reflected in increased fish catches and higher fish weights. The newly built fish passes make possible migration of rare fish species from the Danube River as far as to reservoirs the Nové Mlýny. … celý popis

Podrobná bibliografie

Hlavní autor

Ivo Sukop, 1945-

Typ dokumentu

Články

Fyzický popis

7 il., 2 mapy

Publikováno v

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. -- ISSN 1211-8516. -- Roč. 58, č. 4 (2010), s. 269-275

Témata

CZECH REPUBLIC

RIVERS

WATER MANAGEMENT

HYDRAULIC STRUCTURES

WATER RESERVOIRS

WATER QUALITY

AQUATIC COMMUNITIES

AQUATIC ANIMALS

BENTHOS

SPECIES

QUANTITATIVE ANALYSIS

BIOMASS

FEED RESOURCES

FISHES

POPULATION DENSITY

BODY WEIGHT

řeky

vodní hospodářství

vodní stavby

vodní nádrže

kvalita vody

vodní společenství

vodní živočichové

bentos

druhy

kvantitativní analýza

biomasa

zdroje krmiv

ryby

hustota populace

tělesná hmotnost

Dyje (Česko a Rakousko : řeka : dolní tok)

Nové Mlýny (Česko : vodní dílo)

Česko

zoobentos

saprobita

1977-1984

1997-2008

Popis jednotky

2 barev. fot., 5 tabulek

Bibliografie

Literatura na s. 275