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. 2023 Jan 20;9(1):e13070. doi: 10.1016/j.heliyon.2023.e13070

Fig. 6.

Fig. 6

Acetylcholinesterase activity (AChE) in brain of Dicentrarchus labrax, in groups of fish with (n = 9) and without (n = 11) microplastics in the brain captured during the summer period. Results are expressed as mean values ± standard errors for each group of fish. * indicates statistical significant differences between groups of fish with and without microplastics (Student's t-test, p ≤ 0.05).