Variation in field estimates of daily ration in young yellow perch

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...

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Bibliographic Details
Published in:Journal of fish biology 1999-02, Vol.54 (2), p.396-403
Main Authors: Grant, S. M., Kott, E.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Autoecology
Biological and medical sciences
day-to-day variation
Freshwater
Fundamental and applied biological sciences. Psychology
gut contents
Perca flavescens
Vertebrata
yellow perch
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Summary: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.
ISSN:0022-1112
1095-8649
DOI:10.1111/j.1095-8649.1999.tb00838.x