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Inter- and size-specific patterns of fish seasonal migration between a shallow lake and its streams

  • Christian Skov
  • Jakob Brodersen
  • Anders Nilsson
  • Lars-Anders Hansson
  • Christer Brönmark
Publishing year: 2008
Language: English
Pages: 406-415
Publication/Series: Ecology of Freshwater Fish
Volume: 17
Issue: 3
Document type: Journal article
Publisher: Wiley-Blackwell

Abstract english

Abstract in Undetermined

This study used passive telemetry (passive integrated transponders) to evaluate winter migration in three species of cyprinids (roach (Rutilus rutilus (L.)), white bream (Blicca bjoerkna (L.)) and rudd (Scardinius erythrophthalmus (L.))) and their potential predators (pike (Esox lucius (L.)) and perch (Perca fluviatilis (L.))) between a shallow lake and its streams. Migration patterns were investigated from October to June, and a substantial part of the roach (40%) and white bream (55%) populations tagged in the lake during autumn migrated during winter into the streams, whereas only very few piscivores (< 2%) migrated. In contrast to roach and white bream, only few rudd (< 6%) migrated, which is likely a consequence of different overwintering strategies, e.g., rudd overwintering in shallow highly structured habitats. Small rudd migrated more than larger rudd, whereas there were no size-differentiated migration patterns for roach or white bream. Migration of the cyprinid fishes was generally initiated in late October and ended in May, and specific synchronised bursts of migration were observed in December, January and April, suggesting that migration is triggered by one or more proximate environmental cues. The cyprinid fishes generally entered the streams in late afternoon or in the morning, depending on season, but overall migration patterns varied between the three streams. We suggest and discuss that our results have great implications for lake management as well as for the interpretation of seasonal trophic dynamics in shallow lakes.


  • Ecology
  • cyprinids
  • piscivores
  • PIT telemetry
  • ecosystem mechanisms
  • lake management


  • Centre for Animal Movement Research
  • ISSN: 0906-6691
Anders Nilsson
E-mail: anders [dot] nilsson [at] biol [dot] lu [dot] se


Division aquatic ecology

+46 46 222 83 65

+46 70 346 25 66




Aquatic Ecology


Research group

Aquatic Ecology


Doctoral students and postdocs

Main supervisor

Varpu Pärssinen

Assistant supervisor

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