@misc{Prejs_Andrzej_Lake_1978, author={Prejs, Andrzej}, editor={Polska Akademia Nauk. Instytut Ekologii}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, howpublished={online}, year={1978}, language={eng}, abstract={Different methods have been used to estimate the daily intake of submerged macrophytes by roach and rudd in some eutrophic lakes. The daily rations decrease linearly with the increasing size of fish. For the probable version, under natural conditions, it is a decrease from 15.5% for fish of a body length 11 cm to 7.7% fresh body weight for fish of a body length 24 cm.}, type={Text}, title={Lake macrophytes as the food of roach (Rutilus rutilus L.) and rudd (Scardinius erythrophthalmus L.). 2, Daily intake of macrophyte food in relation to body size of fish}, URL={http://rcin.org.pl/Content/75218/PDF/WA058_86972_P2840-T26_Eko-Pol-A-Nr-4.pdf}, volume={26}, number={4}, journal={Ekologia Polska}, publisher={Polish Scientific Publishers}, keywords={lake littoral, fish, Rutilus rutilus, Srordinius erythrophthalmus, macrophytes, daily ingestion, size of fish}, }