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Table 2

Mean and ranges (in brackets) of the density (N ind. m−2), biomass (B g d w m−2), production (P g d w m−2 yr−1) and P:B (turnover ratio) of dominant chironomid larvae in the macrophytes of the tailwater of the Warta River over the study period. d w − dry weight.


Chironomid taxa N B P P:B
Orthocladius/Cricotopus spp. 43333 (1954–107534) 99.159 (8.568–176.471) 1372.361 13.8
Chironomus riparius Meigen 933 (150–3100) 10.880 (3.600–31.242) 56.598 5.2
Glyptotendipes cauliginellus (Kieffer) 544 (0–1900) 6.870 (0–22.800) 52.661 7.7

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