Effects of temperature on the foraging and growth rate of juvenile common carp, Cyprinus carpio

D. O. Oyugi, J. Cucherousset, D. J. Baker, J. R. Britton

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Abstract

Temperature had a significant and positive effect on the foraging and growth of juvenile common carp Cyprinus carpio (90-105mm) between 16 and 28°C. Metrics measured were feeding rate (items s -1), functional response (feeding rate as a function of food density), specific growth rate and incremental fork lengths. Experiments that were conducted at 16, 20, 24 and 28°C and used two food types revealed a strong thermal influence on foraging, with the highest feeding rates achieved at 24°C. Functional responses also revealed optimal feeding rates in relation to food density occurred at temperatures >20°C. Specific growth rate and incremental fork lengths were depressed at 16 and 28°C when compared to those achieved at 20 and 24°C. These outputs suggest an increase in foraging and growth of C. carpio according to a thermal gradient that were maximal between 24 and 28°C.

Original languageEnglish
Pages (from-to)89-94
Number of pages6
JournalJournal of Thermal Biology
Volume37
Issue number1
DOIs
Publication statusPublished - Jan 2012
Externally publishedYes

Keywords

  • Feeding rate
  • Functional response
  • Incremental fork length.
  • Specific growth rate

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