Table 1 Characteristics of Barbus populations and their metazoan parasite communities. Mean values of total metazoan parasite abundance ± standard deviation (SD), bias-corrected Chao1 richness estimator ± SD, and the averaged prevalence ± SD for each parasite species of component populations for B. barbus (BB) and B. meridionalis (BM) populations and their respective hybrids (H). Population sample sizes (n) were assessed using the Introgress software package

 Site 1

BB

21

22.7

2008; 2012

147.47 ± 151.26

12.23 ± 3.79

10.77 ± 23.78

 Site 2

BB

13

23

2012

302.92 ± 444.28

9.02 ± 1.91

11.94 ± 24.70

 Site 3

BB

27

18

2010

143.74 ± 254.17

13.86 ± 3.01

12.57 ± 21.84

 Site 4

BB

30

20.2

2011; 2012

184.50 ± 97.24

12.58 ± 2.09

15.53 ± 28.20

 Site 5

BB

27

19.9

2007; 2010

193.44 ± 115.18

14.23 ± 2.67

16.67 ± 28.05

 Site 6

BB

15

19.4

2010; 2011

148.67 ± 113.08

10.89 ± 2.81

14.39 ± 27.40

 Site 7

BB

12

21.6

2010

148.50 ± 190.40

12.59 ± 2.42

15.35 ± 25.45

 Site 8

BB

21

17.3

2010; 2011

164.67 ± 115.30

12.11 ± 2.80

14.66 ± 29.03

 Site 9

BB

14

18.8

2013; 2014

17.86 ± 19.80

5.21 ± 1.15

8.08 ± 20.81

BM

13

20.85 ± 11.90

6.72 ± 1.16

9.71 ± 21.43

H

14

67.21 ± 122.70

8.58 ± 2.70

9.58 ± 21.29

 Site 10

BB

2

18.7

2013

31.00 ± 21.21

4.27 ± 1.03

10.53 ± 26.40

H

21

61.38 ± 125.08

8.79 ± 2.03

8.39 ± 18.96

 Site 11

BM

29

17.5

2007; 2012; 2014

166.45 ± 311.53

9.79 ± 2.22

9.80 ± 22.41

H

17

74.12 ± 117.09

10.12 ± 3.17

9.90 ± 21.10

 Site 12

BB

9

17.3

2007

140.56 ± 119.36

8.36 ± 1.50

13.16 ± 27.44

H

10

89.00 ± 95.82

9.39 ± 2.90

10.79 ± 21.23

 Site 13

H

19

16.5

2013

26.89 ± 31.35

6.16 ± 1.40

6.65 ± 17.46

 Site 14

BM

39

15.9

2013: 2014

356.08 ± 898.61

12.63 ± 1.82

12.89 ± 21.48