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Szczyglińska A., 1987. Diet composition and daily feeding patterns of Rutilus rutilus (L.) in Włocławek Dam Reservoir in 1982-1984. Acta Ichthyol. Piscat. 17 (2): 55-68.

The work gives both; a qualitative composition of the trout′s feed for various body length classes and relations between feeding intensity and exposure to light within the twenty-four hours. Surveys were conducted on 1035 individuals caught between 1982 and 1984 within the Włocławski Reservoir. A composition of the trout′s feed, typical, in general, for particular body length classes, was lacking in macrophytes, with a small amount of Dreissena being replaced by the molluscs from Pisidium genus. A clear twenty-four hours feeding rhythm, with brake during the night, was noted. The thesis on the relation between the feeding intensity and water temperature has been confirmed.

 

 

DOI: 10.3750/AIP1987.17.2.05

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