Table 3.

One-way ANOVA and Kruskal-Wallis statistical analyses for mean microplastic concentration, flux, and export between Muskegon, Milwaukee, and St. Joseph Rivers, and microplastic within fish between sites, taxa, and functional feeding groups during summer 2016.

Sample Type	df	ANOVA		Kruskal-Wallis
		F-Value	P-Value	X 2	P-Value
Concentration	2	2.46	0.140	08.35	0.015
Fish Sites	2	0.50	0.609	08.14	0.017
Fish Taxa	10	1.95	0.054	27.83	0.002
Fish FFG	2	—	—	14.18	0.001