Table 2.
Epidemiological parameters of Anisakis spp. and Hysterothylacium spp. infection, according to length classes, in wedge sole sampled in fishmarkets in Granada (Spain).
| Length (cm) | <17.0 | 17.0–19.9 | ≥20.0 | |
|---|---|---|---|---|
| Parasites | Fish number (F) | 29 | 45 | 36 |
| Ascaridoids | Prevalence (%) ns CI 95% |
3.4 0.1–17.8 |
8.9 2.5–21.2 |
25.0 12.1–42.2 |
| MI (range) CI 95% |
1 uncertain |
1 uncertain |
1.11 (1–2) 1.00–1.33 |
|
| MA CI 95% |
0.03 0.00–0.10 |
0.09 0.02–0.18 |
0.28 0.11–0.44 |
|
| Anisakis spp. | Prevalence (%) * CI 95% |
0 0.0–11.9 |
0 0.0–7.9 |
13.9 4.7–29.5 |
| MI CI 95% |
0 | 0 | 1 uncertain |
|
| MA CI 95% |
0 | 0 | 0.14 0.03–0.25 |
|
| Hysterothylacium spp. | Prevalence (%) ns CI 95% |
3.4 0.1–17.8 |
8.9 2.5–21.2 |
11.1 3.1–26.1 |
| MI (range) CI 95% |
1 uncertain |
1 uncertain |
1.25 (1–2) 1.00–1.50 |
|
| MA CI 95% |
0.03 0.00–0.10 |
0.09 0.02–0.18 |
0.14 0.03–0.31 |
Prevalence = 100·N/F; MI, mean intensity = A/N; MA, mean abundance = A/F; where F is the total number of fish, N is the number of infected fish, and A is the number of larvae. CI: confidence interval. ANOVA comparison of prevalence by length classes showed significance (* p < 0.004) for Anisakis; ns, not significant.