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Environmental Biology of Fishes

, Volume 38, Issue 4, pp 385–390 | Cite as

Satiation, digestive tract evacuation and return of appetite in the European minnow,Phoxinus phoxinus (Cyprinidae) following short periods of pre-prandial starvation

  • Nigel R. Russell
  • Robert J. Wootton
Article

Synopsis

In adultPhoxinus phoxinus (Cyprinidae), starvation for 4 or 16 days had no significant effect on the rate of foregut evacuation of the first satiation meal consumed after the starvation period. Starvation for 4 and 16 days had no significant effect on the rate of return of appetite after that first meal. A model based on the rates of foregut evacuation and return of appetite predicted that in the presence of excess food, the foregut contents would represent about 4% of total body weight. This prediction was corroborated experimentally. The effect of the length of starvation on the size of the first meal was not consistent. The results suggest that the hyperphagia noted in minnows starved for 16 days is a consequence of the persistence on succeeding days of the rates of evacuation and return of appetite achieved on the first day of realimentation.

Key words

Digestion Hunger Hyperphagia Compensatory growth Fore gut Hind gut 

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Nigel R. Russell
    • 1
  • Robert J. Wootton
    • 1
  1. 1.Department of Biological SciencesUniversity College of WalesAberystwyth, DyfedU.K.

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