TABLE XI11 - continued
No. of
No. of
preda- each size
No. of triclads eaten
Total
tors
of triclad
P. nigra
P. tenuis
D . lugubris
D. lacteum
eaten
Predator
used
sp. used
A
Y
A
Y
A
Y
A
Y
1400
_ _ _
HEMIPTERA
Notonecta gluuca (Linn.)
10
50
0
0
0
0
0
0
0
0
0
N e p cinerea (Linn.)
10
50
0
0
0
0
0
0
0
0
0
Polycen tropw jlavomaculatus
lo+
lo+
0
3(P)
(P)
TRICHOPTERA
_
_
_
_
- _
(Pictet )
10
50
ODONATA
Coenagrion puella (Linn.)
10
50
8+
26
14+ 31
3+ 32
@+ 35+ 149
Aeuhna cyunea (Mueller)
10
50
45
42
44
40
49
43
41+ 46
350
PISCES
Phoxinus phoxinw (Linn.)
10
50
7
12
14
13
9
9
8
14
86
Salmo trutta fonna fa& (Linn.)
10
50
13
12
9
16
14
15
11
18
108
Scardiniw erythrophthdmw
( L h : )
10
50
25
32
26
38
24
26
19
35
225
AMPHIBIA
Triturua helveticus (Razoumowski)
10
50
1
5
0
4
0
7
0
8
25
19(P)
W P )
21(P)
W P ) 6(P) +(P)
5(P)
+ (P)
CTaaterosteus aculeatus (Linn.)
10
50
11
15
10
17
13
18
9
16
109