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Table 2 Biotic balance of Dreissena polymorpha populations from Resort District, Zelenogorsk transect

From: Effects of nonindigenous species on diversity and community functioning in the eastern Gulf of Finland (Baltic Sea)

Year

S pop (g m−2)

P pop (g m−2)

R pop (g m−2)

A pop =P+R (g m−2)

C pop=A pop /u (g m−2)

f pop (g m−2)

pf pop (g m−2)

1998

106±54

7.7

22.3±21

30±21

51±34

20±18

65±52

2000

442±314

53±35

155

208±134

347±314

139±90

95±90

2001

343±126

42±9

121±25

163±34

271±51

109±22

72

2002

96±61

15

44±36

59±52

106±76

60±48

0

2004

204±107

47±12

137±98

184±95

324±151

120±195

0