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Table 2 Dimensions, nucleus characteristics and form proportions of Mikrocytos spp. according to sampling areas and years

From: Descriptions of Mikrocytos veneroïdes n. sp. and Mikrocytos donaxi n. sp. (Ascetosporea: Mikrocytida: Mikrocytiidae), detected during important mortality events of the wedge clam Donax trunculus Linnaeus (Veneroida: Donacidae), in France between 2008 and 2011

Sample origin

Histologya

TEMa

No. of cells examined

Mean diameter (μm)

Diameter range (μm)

Eccentric nucleus (%)

No. of cells examined

Cell dimension range (μm)b

Nucleus dimension range (μm)b

Eccentric nucleus (%)

Dense form (%)

Quiberon 2008

200

1.91

1.08–3.2

80

20

2–4.72 × 1.31–4

0.94–2.22 × 0.56–2

75

80

Quiberon 2010

200

1.88

1.25–2.73

85

nd

nd

nd

nd

nd

Oléron 2010

200

2.01

1.19–3.01

71

nd

nd

nd

nd

nd

Audierne 2010

90

2.05

1.49–2.71

75

nd

nd

nd

nd

nd

Audierne 2011

200

1.79

1.16–2.94

76

20

1.83–3.2 × 1.07–2.42

0.68–1.38 × 0.59–1.09

85

100

Douarnenez 2011

200

2.15

1.28–3.17

87

12

2.03–3.79 × 1.60–2.50

0.73–1.70 × 0.71–1.26

75

75

  1. aThese observations were performed both on intracellular and extracellular parasites; the cell position of the parasites was not taken into account in the observations
  2. bLength × width
  3. Abbreviation: nd not done