Table 1.

Cdt phages sdetection in Llobregat River water

Sample (n = 11) parameter	Bacterial indicators		Bacteriophages
	Aerobic bacteria (CFU/100 ml)	E. coli (CFU/100 ml)	Somatic coliphages (PFU/100 ml)	Cdt phages (GC/100 ml)a
% Positive	100	100	100	72.7
No.
Avg	5.13 × 105	1.65 × 103	2.63 × 104	1.14 × 101
Max	6.32 × 105	5.21 × 103	5.51 × 104	1.9 × 101
Min	1.93 × 104	9.30 × 102	1.02 × 104	6.50 × 100

^aGC, gene copies.