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Table 1 Mean microplastic concentration in the experimental fish for each treatment. n = number of examined fish. SD = Standard deviation

From: Combined proteomic and gene expression analysis to investigate reduced performance in rainbow trout (Oncorhynchus mykiss) caused by environmentally relevant microplastic exposure

Food pellet size Treatment n Mean particle concentration ± SD [number per fish]
2 mm Control 15 0
Low exposure 15 15 ± 16
High exposure 15 61 ± 47
4 mm Control 15 0
Low exposure 15 12 ± 16
High exposure 15 86 ± 47