<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The construction of the Daugava hydro power station (HPS) cascade has significantly transformed Latvia's largest river the Daugava, reducing its importance in the natural reproduction of anadromous fish species. Currently in Latvia, as well as in other Baltic Sea countries, the river lamprey catch is decreasing, whereas the landings in the river Daugava have tended to increase. The dynamics of the river lamprey landings show the possible redistribution of lamprey stocks between the rivers Gauja and the Daugava. Possibly, this is a result of anthropogenic influence and changes in the river lamprey resource management may be necessary in the future.</p></abstract>

The construction of the Daugava hydro power station (HPS) cascade has significantly transformed Latvia's largest river the Daugava, reducing its importance in the natural reproduction of anadromous fish species. Currently in Latvia, as well as in other Baltic Sea countries, the river lamprey catch is decreasing, whereas the landings in the river Daugava have tended to increase. The dynamics of the river lamprey landings show the possible redistribution of lamprey stocks between the rivers Gauja and the Daugava. Possibly, this is a result of anthropogenic influence and changes in the river lamprey resource management may be necessary in the future.

Anthropogenic Influence on the Dynamics of the River Lamprey <italic>Lampetra fluviatilis</italic> Landings in the River Daugava Basin

Institute of Food Safety, Animal Health and Environment "BIOR"

Environmental and Climate Technologies

Anthropogenic Influence on the Dynamics of the River Lamprey  Landings in the River Daugava Basin

The construction of the Daugava hydro power station (HPS) cascade has significantly transformed Latvia's largest river the Daugava, reducing its importance in...

Anthropogenic Influence on the Dynamics of the River Lamprey Lampetra fluviatilis Landings in the River Daugava Basin

Publié en ligne: 31 janv. 2012

Pages: 32 - 38

DOI: https://doi.org/10.2478/v10145-011-0025-z

Mots clés
River amprey, landing dynamics, spawning stock, resource management

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