Comparison of the metal accumulation capacity between the acanthocephalan Pomphorhynchus laevis and larval nematodes of the genus Eustrongylides sp. infecting barbel ( Barbus barbus )

Table 4 Spearman correlation coefficients (r) for the significant relationships between element concentrations in parasites and fish tissues

Element	Parasite versus organ/parasite	R	p
Co	Eustrongylides sp. ↔ intestine	0.53	< 0.05
	Eustrongylides sp. ↔ liver	0.51	< 0.05
	Eustrongylides sp. ↔ P. laevis	0.53	< 0.05
	P. laevis ↔ intestine	0.78	< 0.01
	P. laevis ↔ liver	0.74	< 0.01
Cd	Eustrongylides sp. ↔ muscle	0.79	< 0.01
	Eustrongylides sp. ↔ liver	0.66	< 0.05
Fe	Eustrongylides sp. ↔ muscle	0.57	< 0.05
	Eustrongylides sp. ↔ liver	0.62	< 0.05
Mn	Eustrongylides sp. ↔ intestine	0.69	< 0.01
	Eustrongylides sp. ↔ P. laevis	0.69	< 0.01
	P. laevis ↔ intestine	0.53	< 0.05
	P. laevis ↔ liver	0.71	< 0.01
Pb	Eustrongylides sp. ↔ muscle	0.53	< 0.05
	Eustrongylides sp. ↔ liver	0.74	< 0.01
	Eustrongylides sp. ↔ P. laevis	0.68	< 0.01
	P. laevis ↔ liver	0.55	< 0.05
Se	Eustrongylides sp. ↔ muscle	−0.69	< 0.01
	P. laevis ↔ muscle	−0.51	< 0.05
Sn	Eustrongylides sp. ↔ muscle	−0.72	< 0.01
V	Eustrongylides sp. ↔ intestine	0.68	< 0.01
	Eustrongylides sp. ↔ liver	0.56	< 0.05
	Eustrongylides sp. ↔ P. laevis	0.57	< 0.05
	P. laevis ↔ intestine	0.69	< 0.01