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Witkowski A., 1984. Morphological variability in lake and river populations of Cottus poecilopus Heckel, 1836 (Pisces: Cottidae). Acta Ichthyol. Piscat. 14 (1-2): 43-57.

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.

 

 

DOI: 10.3750/AIP1984.14.1-2.03

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