Acta Ichthyologica et Piscatoria 14(1): 43-57, doi: 10.3750/AIP1984.14.1-2.03
Morphological variability in lake and river populations of Cottus poecilopus Heckel, 1836 (Pisces: Cottidae)
expand article infoA. Witkowski
Open Access
Morphological variability in both population types of Cottus poecilopus Heckel was shown on the basic of study on 316 specimens from 11 lakes and 6 mountain rivers. Rheophilous populations have better developed features related to locomotion; in limnophilous populations cephalic and truncal canals of lateral line are partly reduced. The differences between river and lake populations of Cottus poecilopus involve adaptations to their respective habitats.