()

-

, , ,

15%

(),() ()

30%

55%

(2010-2011) ( )

8.410.815.020.824.926.626.125.924.019.713.89.521.224.530.537.239.838.534.133.233.232.528.223.0

2006-07 11855,755

2012-13 400014042

( )

:

200124.36%58.03%6.65%

200525.39%65.00%9.97%

201225.39%68.00%9.97%

:

()( )

200120052012

12.16

32.84

45.0012.58

31.02

56.4115.00

30.19

54.81

( )

( )()( )

277 58%

260 40%

13 02%

(oo)

20.4

29.4

7.2

4.8

15.8

19.4

17.1

8.4

22.6

0.4

0.7

0.7

80.8

8.4

12.1

30.8

73.3

93.1

16.8

29.0

0.6

0.7

Food chain and food web

0-10

01-20

20-30

30-40

40-50

50-60

60 12.0

11.8

9.5

8.0

7.0

6.0

2.016.0

9.0

8.6

9.0

5.0

3.0

1.0

-

40%

30%

10%

5%

15%

:

:

,

:

: :

:

, &