| Author: | Jokela-Määttä, M., M. Viljanen, N. Nevala, K. Donner, and C. Brönmark |
| Article Title: | Photoreceptors and eyes of pikeperch Sander lucioperca, pike Esox lucius, perch Perca fluviatilis and roach Rutilus rutilus from a clear and a brown lake |
| Keywords: | Sander lucioperca, Zander, Photoreceptors, Visual sensitivity, Roach, Rutilus rutilus, Perch, Perca fluviatilis |