Bottom-up effects of bream (Abramis brama L.) in Lake Balaton

I. Tátrai, G. Tóth, J. E. Ponyi, J. Zlinskzky, V. Istvánovics

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Enclosures (17 m3) were used in the mesotrophic area of Lake Balaton to determine the impact of benthivorous bream (Abramis brama L.) on the lower trophic levels during summers of 1984-86. In enclosures with a fish biomass similar to the biomass in the eutrophic area of the lake, the number of phytoplankton species was highest. In enclosures with a low fish biomass the phytoplankton was dominated by the greens. A high biomass of bream in the mesotrophic basin caused bacterial production corresponding to that of the eutrophic part of the lake. Crustaceans were dominated by copepods and were unable to control phytoplankton peaks. Bottom-up effects of bream were more obvious than top-down effects and seem to be more important in the possible control of water quality.

Original languageEnglish
Pages (from-to)167-175
Number of pages9
JournalHydrobiologia
Volume200-201
Issue number1
DOIs
Publication statusPublished - Aug 1 1990

Keywords

  • bacterial production
  • biomanipulation
  • bream
  • crustaceans
  • fish effects
  • phytoplankton

ASJC Scopus subject areas

  • Aquatic Science

Fingerprint Dive into the research topics of 'Bottom-up effects of bream (Abramis brama L.) in Lake Balaton'. Together they form a unique fingerprint.

  • Cite this