An in situ estimate of food consumption of five cyprinid species in Lake Balaton

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Daily rations of five cyprinid species, bream Abramis brama, silver bream Blicca bjoerkna, roach Rutilus rutilus, gibel Carassius auratus gibelio and carp Cyprinus carpio, in Lake Balaton, a large shallow lake, estimated by the Eggers model differed from that of the Elliott-Persson model by only -4.3 to +7.3% (the differences were insignificant). Daily rations varied within the range of 0.23-0.69 in bream, 0.55-3.61 in silver bream, 0.69-4.65 in roach, 0.38-3.16 in gibel and 0.50-9.74 g dry 100 g wet fish mass-1 day-1 in carp at temperatures ranging from 8.7-25.8°C. Daily ration was related exponentially with temperature in silver bream, roach, gibel and carp. For bream, a significant relationship was obtained only when a daily ration value was excluded from the analysis. Annual rations were assessed using the relationships between the daily ration estimates from the Elliott-Persson model and water temperature, and the long-term averages of the monthly water temperature data. From these estimates the bream population consumed 104%, silver bream 424%, roach 487%, gibel 363% and carp 913% dry mass of food of its wet biomass annually.

Original languageEnglish
Pages (from-to)1237-1251
Number of pages15
JournalJournal of Fish Biology
Issue number5
Publication statusPublished - May 1 2002


  • Annual ration
  • Cyprinidae
  • Daily ration
  • Lake Balaton
  • Models

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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