The food of bream (Abramis brama L.) in two basins of Lake Balaton of different trophic status

P. Bíró, Suhad E. Sadek, Gábor Paulovits

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Contrary to earlier observations the food composition of bream (Abramis brama L.) in Lake Balaton has changed in parallel with eutrophication. These changes were probably caused by increased population density and connected with density dependent growth as well as sharpened inter- and intraspecific competition in the cyprinid community. According to the frequency of occurrence, zooplankton followed by benthic invertebrates comprised the majority of the bream's food. By weight, however, benthic food dominated in both basins. Size-related dietary changes were pronounced, but statistically not always significant, suggesting the overall importance of the most abundant and available prey types. Bream did not strongly select any of the zooplankton groups, however, seasonal changes in food composition alternated in parallel with the trophic gradient along the longitudinal axis of the lake.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalHydrobiologia
Volume209
Issue number1
DOIs
Publication statusPublished - Feb 1991

Fingerprint

Abramis brama
trophic status
bream
Catchments
Lakes
food composition
food
zooplankton
lake
basin
lakes
intraspecific competition
interspecific competition
eutrophication
Eutrophication
cyprinid
population density
Chemical analysis
invertebrates
basins

Keywords

  • bream
  • food composition
  • food selectivity
  • Lake Balaton

ASJC Scopus subject areas

  • Water Science and Technology
  • Pollution
  • Environmental Science(all)
  • Oceanography
  • Aquatic Science

Cite this

The food of bream (Abramis brama L.) in two basins of Lake Balaton of different trophic status. / Bíró, P.; Sadek, Suhad E.; Paulovits, Gábor.

In: Hydrobiologia, Vol. 209, No. 1, 02.1991, p. 51-58.

Research output: Contribution to journalArticle

Bíró, P. ; Sadek, Suhad E. ; Paulovits, Gábor. / The food of bream (Abramis brama L.) in two basins of Lake Balaton of different trophic status. In: Hydrobiologia. 1991 ; Vol. 209, No. 1. pp. 51-58.
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