Variation in field estimates of daily ration in young yellow perch |
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| Authors: | S. M. Grant,&Dagger E. Kott,&dagger |
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| Affiliation: | LGL Limited, Environmental Research Consultants, 388 Kenmount Road, P.O. Box 13248 Station A, St John's, Newfoundland, Canada A1B 4A5;Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada N2L 3C5 |
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| Abstract: | ![]()
The quantity of food in the complete digestive tract of young-of-the-year yellow perch Perca flavescens varied between samples taken at the same time of the day over 2–3 consecutive days, resulting in a 1·7- to 2·5-fold variation of in situ estimates of daily ration. Increased food intake rates were related to increased consumption of large prey items suggesting a day-to-day pattern in the quantity and size of food consumed. |
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| Keywords: | yellow perch gut contents day-to-day variation |
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