Table 1 Prevalence of I. variegatus and I. pileatus, and co-infections of both species in monthly samples of three age cohorts of perch caught from Lake Konnevesi, Central Finland
Age | Month | n | I. variegatus | I. pileatus | Co-infection |
|---|---|---|---|---|---|
0+ | July A | 55 | 0.0 | 3.6 | 0.0 |
July B | 30 | 13.3 | 10.0 | 6.7 | |
August | 30 | 46.7 | 86.7 | 43.4 | |
September A | 45 | 62.2 | 100.0 | 62.2 | |
September B | 36 | 77.8 | 100.0 | 77.8 | |
October | 22 | 81.8 | 100.0 | 81.8 | |
All | 218 | 42.4 | 61.5 | 40.8 | |
1+ | May | 30 | 70.0 | 96.7 | 70.0 |
June | 31 | 80.6 | 100.0 | 80.6 | |
July | 30 | 63.3 | 96.7 | 60.0 | |
August | 30 | 80.0 | 100.0 | 80.0 | |
All | 121 | 73.6 | 98.3 | 72.7 | |
2+ | May | 40 | 92.5 | 100.0 | 92.5 |
June | 30 | 83.3 | 96.7 | 83.3 | |
July | 30 | 76.7 | 100.0 | 76.7 | |
August | 30 | 96.7 | 100.0 | 96.7 | |
September | 30 | 93.3 | 100.0 | 93.3 | |
All | 160 | 88.8 | 99.4 | 88.8 |