Relationship between horizontal hydroacoustic stock estimates and gillnet catches of surface-oriented fish in shallow Lake Balaton (Hungary)

Á I. György, I. Tátrai, A. Specziár

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We examined whether gillnetting and hydroacoustics provide comparable relative fish density and fish size distribution estimates in the uppermost water layer of a shallow turbid lake and whether the inclusion of environmental and stock parameters could improve comparability of data between different gears. According to gillnetting, most fish shorter than 14 cm in total length were Alburnus alburnus, and most fish longer than 14 cm were Pelecus cultratus. Size distributions and median sizes obtained from gillnetting and acoustics differed. Pure acoustics-derived density estimates accounted for only

Original languageEnglish
Article number06
JournalKnowledge and Management of Aquatic Ecosystems
Issue number405
DOIs
Publication statusPublished - 2012

Fingerprint

gillnet
gillnets
Hungary
lakes
lake
fish
acoustics
Alburnus alburnus
water

Keywords

  • Alburnus alburnus
  • comparability of data
  • gillnet
  • shallow lake
  • side-looking hydroacoustics

ASJC Scopus subject areas

  • Aquatic Science
  • Management, Monitoring, Policy and Law
  • Ecology
  • Nature and Landscape Conservation
  • Water Science and Technology

Cite this

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AB - We examined whether gillnetting and hydroacoustics provide comparable relative fish density and fish size distribution estimates in the uppermost water layer of a shallow turbid lake and whether the inclusion of environmental and stock parameters could improve comparability of data between different gears. According to gillnetting, most fish shorter than 14 cm in total length were Alburnus alburnus, and most fish longer than 14 cm were Pelecus cultratus. Size distributions and median sizes obtained from gillnetting and acoustics differed. Pure acoustics-derived density estimates accounted for only

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