Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Number and size (mean ± standard deviation, minimum and maximum in parentheses) of brown bullhead (Ameiurus nebulosus) examined from different Ukrainian localities
| Parameters | Lake Svitiaz | Lake Pisochne | Lake on Plastova | Lake on Stryiska |
|---|---|---|---|---|
| Number | 20 | 10 | 20 | 52 |
| Standard length (mm) | 128.6±9.7 (112–150) | 138.2±23.8 (95–176) | 73.9±9.7 (55–95) | 61.5±7.8 (43–80) |
| Total length (mm) | 153.6±10.8 (131–177) | 157.2±31.6 (109–199) | 90.8±9.9 (78–115) | 75.3±9.1 (56–95) |
Parasites of invasive brown bullhead (Ameiurus nebulosus) from different Ukrainian localities_
| Parasite species (site) | Index | Lake Svitiaz | Lake Pisochne | Lake on Plastova | Lake on Stryiska |
|---|---|---|---|---|---|
| CILIOPHORA | |||||
| Trichodina spp. (gills) | P, % | 15.0 | 3.8 | ||
| MI±sd | 4.0±5.2 | 14.5±14.8 | |||
| IR | 1–10 | 4–25 | |||
| A | 0.6 | 0.6 | |||
| CNIDARIA | |||||
| Myxozoa gen. sp. (gall bladder) | P, % | 5.0 | 10.0 | ||
| MI±sd | 1.0 | 1.0 | |||
| IR | 1 | 1 | |||
| A | 0.1 | 0.1 | |||
| MONOGENEA | |||||
| Gyrodactylus nebulosus (fins) | P, % | 10.0 | 10.0 | 9.6 | |
| MI±sd | 1.5±0.7 | 1.0 | 1.6±1.3 | ||
| IR | 1–2 | 1 | 1–4 | ||
| A | 0.2 | 0.1 | 0.2 | ||
| Ligictaluridus pricei (gills) | P, % | 45.0 | 80.0 | 60.0 | 82.7 |
| MI±sd | 7.0±4.1 | 11.5±4.9 | 10±13.7 | 8.4±6.8 | |
| IR | 2–16 | 5–19 | 1–46 | 1–30 | |
| A | 3.2 | 9.2 | 5.95 | 6.9 | |
| Ligictaluridus monticellii (nasal cavity) | P, % | 25.0 | 10.0 | 73.1 | |
| MI±sd | 2.6±1.5 | 7.0 | 4.1±4.1 | ||
| IR | 1–5 | 7 | 1–16 | ||
| A | 0.7 | 0.7 | 3.0 | ||
| Ligictaluridae larvae (fins) | P, % | 3.8 | |||
| MI±sd | 1.0±0.0 | ||||
| IR | 1 | ||||
| A | 0.04 | ||||
| CESTODA | |||||
| Paradilepis scolecina (heart, kidney) | P, % | 10.0 | 1.9 | ||
| MI±sd | 1.0±0.0 | 1.0 | |||
| IR | 1 | 1 | |||
| A | 0.1 | 0.02 | |||
| DIGENEA | |||||
| Diplostomum spp. met (eyes) | P, % | 85.0 | 5 | 51.9 | |
| MI±sd | 21.6±11.1 | 2.0 | 4.2±3.9 | ||
| IR | 6–43 | 2 | 1–16 | ||
| A | 18.4 | 0.1 | 2.2 | ||
| Hysteromorpha triloba met (muscles) | P, % | 45.0 | 20.0 | ||
| MI±sd | 2.6±1.0 | 4.0±0.0 | |||
| IR | 1–4 | 4 | |||
| A | 1.2 | 0.8 | |||
| NEMATODA | |||||
| Anguillicola crassus L3 (mesentery, liver) | P, % | 70.0 | 80.0 | ||
| MI±sd | 7.0±6.2 | 3.9±2.2 | |||
| IR | 1–22 | 1–8 | |||
| A | 4.9 | 3.1 | |||
| Goezia ascaroides (gut) | P, % | 10.0 | |||
| MI±sd | 3.5±3.5 | ||||
| IR | 1–6 | ||||
| A | 0.4 | ||||
| Streptocara crassicauda L3 (mesentery, liver) | P, % | 30.0 | |||
| MI±sd | 5.7±4.0 | ||||
| IR | 1–11 | ||||
| A | 1.7 | ||||
| Agamonema sp. (mesentery) | P, % | 1.9 | |||
| MI±sd | 1.0 | ||||
| IR | 1 | ||||
| A | 0.02 | ||||
| CRUSTACEA | |||||
| Argulus foliaceus (gills) | P, % | 5.0 | 10.0 | ||
| MI±sd | 1.0 | 2.0 | |||
| IR | 1 | 2 | |||
| A | 0.1 | 0.2 | |||
| Ergasilus sieboldi (gills) | P, % | 10.0 | |||
| MI±sd | 1.0±0.0 | ||||
| IR | 1 | ||||
| A | 0.1 | ||||
| ARACHNIDA | |||||
| Unionicolidae gen. sp. (gills, gut wall, swim bladder) | P, % | 20.0 | 10.0 | ||
| MI±sd | 1.3±0.5 | 3.0 | |||
| IR | 1–2 | 3 | |||
| A | 0.3 | 0.3 | |||
| Species richness | 13 | 8 | 3 | 7 | |