Skip to main content
Environmental Sciences Europe
Fig. 2 | Environmental Sciences Europe

Fig. 2

From: Detection of chemically induced ecotoxicological effects in rivers of the Nidda catchment (Hessen, Germany) and development of an ecotoxicological, Water Framework Directive–compliant assessment system

Fig. 2

Gammarus fossarum. Mean and standard error of percentage mortality (a, c, e) and mean and standard deviation of fecundity index (b, d, f) in active biomonitoring campaigns at the rivers Nidda, Usa and Horloff (Field) and in laboratory experiments with combined water/sediment samples (Lab) of the corresponding sampling sites. Significant differences in mortality compared to the corresponding reference site N1, U1 or H1 (shaded) were determined using Fisher’s exact test. Significant differences in fecundity index in comparison with the corresponding reference site were determined via unpaired t test. *p < 0.05, ***p < 0.001, nField = 6, nLab = 4

Back to article page