Prevalence parameter estimated according to seasons (autumn: September, October, November; winter: December, January, February; spring: March, April, May; summer: June, July, August) obtained for Atlantic chub mackerels infected by Anisakis spp_ and Hysterothylacium spp_ analysed in the present study (CI: confidence interval; P%: prevalence indicated as percentage; p: p value)_
| Anisakis spp. | Hysterothylacium spp. | |||
|---|---|---|---|---|
| P% | CI | P% | CI | |
| Autumn | 37.80 | 27.8 – 48.6 | 24.40 | 16.0 – 34.6 |
| Winter | 17.80 | 10.5 – 27.3 | 33.30 | 23.7 – 44.1 |
| Spring | 50.00 | 39.3 – 60.7 | 63.30 | 52.5 – 73.2 |
| Summer | 62.20 | 51.4 – 72.2 | 54.40 | 43.6 – 65.0 |
| p | < 0.00001 | < 0.00001 | ||
Epizootiological parameters obtained for chub mackerels infected by Anisakis spp_ and Hysterothylacium spp_ analysed in the present study (CI: confidence interval; NIF: number of infected fish; P %: prevalence indicated as percentage; ml: mean intensity; mA: mean abundance; K: aggregation index)_
| NIF | P % | mI | mA | K | |
|---|---|---|---|---|---|
| Anisakis spp. | 151 | 41.9 | 5.76 | 2.42 | 0.2 |
| (CI) | (36.8 – 47.2) | (4.32 – 8.55) | (1.78 – 3.68) | ||
| Hysterothylacium spp. | 158 | 43.9 | 2.25 | 0.98 | 0.53 |
| (CI) | (38.7 – 49.2) | (1.96 – 2.66) | (0.82 – 1.2) | ||