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Table 3 Parasites recorded in shore crabs (C. maenas) in two periods: 1989 (Lauckner 1990) and 2004 (this study)

From: Parasites in the northern Wadden Sea: a conservative ecosystem component over 4 decades

Date

Tidal level

Name of locality

n

Carapax width (mm)

Mean carapax width (mm)

M. claviformis (max)

M. subdolum (max)

P. botulus (max)

Reference

June 1989

Intertidal

Frischwassertal

10

>25

Approx. 30

173

2.8

3.3

Lauckner (1990)

June 1989

Intertidal

Schiessplatz

22

>25

Approx. 30

4,087

31.9

1.4

Lauckner (1990)

June 1989

Subtidal

Lister Ley at Königshafen

337

10–65

Approx. 35

No data

No data

2.3

Lauckner (1990)

June 1989

Subtidal

Lister Ley at Königshafen

369

10–65

Approx. 35

No data

No data

2.3

Lauckner (1990)

August 2004

Intertidal

Diedrichsenbank

25

35–66

55.3

506.9 ± 746.3 (3,104)

21.7 ± 36.9 (148)

2.5 ± 2.5 (10)

This paper

August 2004

Subtidal

Lister Ley at Königshafen

15

18–62

38.9

378.8 ± 684.2 (1,964)

9.4 ± 24.8 (89)

1.1 ± 1.3 (4)

This paper

August 2004

Subtidal

Schweinebucht

59

16–66

42.7

352.7 ± 823.9 (4,063)

15.8 ± 39.3 (223)

2.2 ± 3 (13)

This paper