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Table 5 Standing crop and dominant zooplankton species

From: The effect of phosphorus removal from sewage on the plankton community in a hypertrophic reservoir

Year

Month

Standing crop (ind. L−1)

Dominant species

Cladocera

Copepoda

Rotifera

Total

2003

Sep.

57

19

13

89

Bosmina longirostris

Nov.

2

18

21

41

Cyclops vicinus

Dec.

21

14

122

157

Asplanchna priodonta

2004

Mar.

1

13

85

98

Cyclops vicinus

Apr.

44

29

2731

2804

Cyclops vicinus

May

0

1

10

11

Nauplius

Jun.

48

298

1805

2151

Thermocyclops taihokuensis

Jul.

254

368

1555

2177

Thermocyclops taihokuensis

Aug.

243

271

989

1504

Nauplius

Advanced treatment start

2007

Nov.

5

18

20

43

Bosmina longirostris

Dec.

12

58

12

88

Cyclops vicinus

2008

Apr.

1242

1089

1531

3862

Daphnia galeata

May

550

342

626

1518

Cyclops vicinus

Jun.

49

162

54

266

Daphnia galeata

Jul.

77

212

1384

1674

Copepodite

Aug.

22

235

1561

1818

Brachionus forficula

Sep.

97

306

2704

3105

Keratella cochlearis

Oct.

510

1729

1758

3997

Daphnia galeata

Dec.

217

466

3616

4299

Cyclops vicinus

2009

Mar.

21

120

154

295

Cyclops vicinus

May

0

0

2275

2275

Daphnia galeata

Sep.

9

82

493

574

Cyclops vicinus