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Ogre
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Ogre

Daugava basin 188 km0/4 completed

The Ogre River is a significant tributary of the Daugava, which historically was a salmon and lamprey river. However, after the construction of the Riga HPP, migration of these fish from the sea has ceased. The river itself has 3 HPP dams, but suitable habitats for these sensitive fish species have been preserved.

Planned activities

0/4
HabitatsNot started

Reintroduction of salmon and lamprey

Reintroduction of Atlantic salmon and river lamprey in the Ogre river

HabitatsNot started

Habitat quality improvement

Nārsta vietu un dzīvotņu kvalitātes uzlabošana lašu un nēģu populāciju atjaunošanai.

HabitatsNot started

Fish population monitoring

Zivju populāciju dinamikas monitorings, novērtējot reintrodukcijas programmas efektivitāti.

SupportNot started

Reintroduction legal framework

Legal framework development for fish reintroduction programs.

The Ogre River is a significant tributary of the Daugava, which historically was a salmon and lamprey river. However, after the construction of the Riga HPP, migration of these fish from the sea has ceased.

There are 3 HPP dams on Ogre river, but local fish populations have been preserved, making it a potentially important site for salmon and lamprey reintroduction.

Key planned activities

  • Salmon and lamprey reintroduction programme
  • HPP obstacle impact assessment
  • Habitat quality improvement
  • Fish population monitoring

Protected species and habitats

Key protected species:

  • Atlantic salmon (Salmo salar) — reintroduction
  • River lamprey (Lampetra fluviatilis) — reintroduction
  • Local fish populations

Photo gallery

Learn more about the project

LIFE RiverFlow restores Latvia's river ecosystems — removing barriers, reconnecting fragmented rivers and building nature-friendly fish passages so rivers can flow freely again.