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Table 1 Size of investigated mollusc host species, year of sampling, number of sites sampled and sampling effort per site and in total

From: Macroparasite community in molluscs of a tidal basin in the Wadden Sea

Host species

Size (mm)

Year of sampling

No. sampling sites

No. host ind. sampled per site

Total no. host ind. investigated

Hydrobia ulvae

> 2 

1997

4

363–470

1,681

Littorina littorea

> 14

2003, 2004

6

150–200

1,090

Crepidula fornicata

20–45

2000, 2003

2

54–70

124

Cerastoderma edule

21–47

2003, 2004

6

20–54

220

Mytilus edulis

15–77

2003, 2004

6

30–54

234

Macoma balthica

10–23

2004

4

16–96

167

Cerastoderma glaucum

20–45

2002, 2004

2

30–32

62

Mya arenaria

30–107

2004

3

18–22

60

Ensis americanus

64–162

2003, 2004

2

4–40

44

Crassostrea gigas

28–158

2003, 2004

3

20–54

104

  1. “Sites” here also includes collections at the same locality but different years (see Fig. 1)