In situ estimates of gut evacuation and its dependence on temperature in five cyprinids

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Gut evacuation and its dependence on the temperature in bream Abramis brama, silver bream Blicca bjoerkna, roach Rutilus rutilus, gibel Carassius aurtaus gibelio and carp Cyprinus carpio, held in mesh cages in Lake Balaton, was best fitted by an exponential model in 18 of 36 trials, while in 14 and four trials, a linear and a square-root model, respectively, gave a better fit. Adjusted r2 values, however, often did not differ markedly between the three models. The shape parameter, B, was 0.36 for carp and ranged from 0.81 to 1.24 for the other four cyprinids, according to the general evacuation model expanded with the temperature variable, and fitted to whole data sets. Relationships between the food evacuation rates obtained from the exponential models and the temperature were described by exponential functions for bream, silver bream, roach and gibel.

Original languageEnglish
Pages (from-to)1222-1236
Number of pages15
JournalJournal of Fish Biology
Issue number5
Publication statusPublished - May 1 2002


  • Cyprinidae
  • Gut evacuation models
  • Gut evacuation rate
  • Lake Balaton
  • Temperature

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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