Effects of roach Rutilus rutilus on two percids, Perca fluviatilis and Gymnocephalus cernua: importance of species interaction for diet shifts.

Title	Effects of roach Rutilus rutilus on two percids, Perca fluviatilis and Gymnocephalus cernua: importance of species interaction for diet shifts.
Authors:	Bergman, E.
Publication Type	Journal Article
Year of Publication:	1990
Volume:	57
Pagination:	241-49