TABLE 3.

Prevalence and intensity of C. molnari in European sea bass groups surveyed in ongrowing systems in study A^a

Sample no.	Sample date	nb	Fish weight (g)	Prevalence (%)	MI
1c	Sept 1999	19	18.7 ± 5.8	57.9	1
2	Jan 2000	5	42.2 ± 8.6	0	0
3	Sept 2000	20	117.3 ± 49.6	0	0
4	Dec 2000	18	328.8 ± 84.6	0	0

^aAll groups sampled were from farm F-3, with hatchery H-1 and preongrowing facility PGF-1 as origins. For the total sample (62 fish), prevalence was 17.7% and mean intensity (MI) of infection was 1.

^bn, number of fish examined.

^cSampling carried out before introduction in the ongrowing system.