Acta Ichthyologica et Piscatoria 29(2): 13-29, doi: 10.3750/AIP1999.29.2.02
Dominance and occurrence constancy of the fish species in the lower Płonia River
expand article infoZ. Chełkowski, A. Łysak, B. Chełkowska, J. Filipiak

Corresponding author: Z. Chełkowski

© Z. Chełkowski, A. Łysak, B. Chełkowska, J. Filipiak.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Chełkowski Z, Łysak A, Chełkowska B, Filipiak J (1999) Dominance and occurrence constancy of the fish species in the lower Płonia River. Acta Ichthyologica et Piscatoria 29(2): 13-29. https://doi.org/10.3750/AIP1999.29.2.02
Open Access
Abstract
The fish fauna of the lower Płonia River, above and below, the discharge point of the partly treated manure from the Pig Farm at Kołbacz-was surveyed in the years of 1992-1994. Electrofishing conducted four times on the same sections of the river yielded a total of 5 773 fishes, representing 21 species. The fishes belonged to 8 families and they were assigned to four feeding guilds. The highest occurrence constancy index (100%) was observed in roach, perch, and pike. The above species represented also the highest dominance index (67.71, 14.77, and 4.07% respectively).