. 2021 Feb 11;9:e10642. doi: 10.7717/peerj.10642

Table 10. Proportion of significant background variables on fish body shape and scale shape.

Species	Analyzed shape	Variable category	Significant variable	Proportion of effect (%)	Joint effect (%)
Roach	Scale	C	As	9
	Scale	C	SO₄²⁻	3
	Body	PhAC	TRIM	6	1
	Body	PhAC	CITA	4	1
Chub	Scale	C	Mg	5
		C	As
		C	Ca
		LE	Macrophyte coverage	2	1
		LE	Water depth	2
		PhAC	CODE	1
	Body	LE	Detritus	3	8
	Body	C	Cd	4	8
Gibel carp	Scale	LSE	Wetland	6	1
	Scale	C	Pb	2	1
	Body	C	Zn	11	4
		LSE	Catchment size	2	4
		PhAC	PROP	6

Note:

Variable types: C, water chemistry data; PhAC, pharmaceutical active compound; LE, local environmental variables; LSE, landscape scale environmental variables.