Table 1.
Ecological aspects of parasites found in species of the genus Potamotrygon in the upper Paraná River, Brazil. Abbreviations: Ab = Abundance, AF = Analyzed Fishes, Do = Dominance, Ev = Evenness, In = Intensity, PF = Parazited Fishes, Pr (%) = Prevalence (percent).
| Taxa | Infection Sites |
Potamotrygon amandae |
Potamotrygon falkneri |
Potamotrygon amandae |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Site 1 |
Site 2 |
Site 2 |
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| AF | PF | Pr (%) | Ab | In | Do | Ev | AF | PF | Pr (%) | Ab | In | Do | Ev | AF | PF | Pr (%) | Ab | In | Do | Ev | ||
| Monogenea | ||||||||||||||||||||||
| Potamotrygonocotyle tsalickisi | Gills | 11 | 11 | 100 | 4810 | 153 | 0.25 | 0.69 | 11 | 0 | – | – | – | – | – | 9 | 6 | 66.7 | 1026 | 126 | 0.33 | 0.75 |
| Cestoda | ||||||||||||||||||||||
| Acanthobothrium quinonesi | Spiral valve | 36 | 5 | 13.9 | 61 | 4 | 0.54 | 0.53 | 39 | 22 | 56.4 | 77 | 2.5 | 0.07 | 0.93 | 9 | 2 | 22.2 | 3 | 2 | 1 | |
| Rhinebothrium paratrygoni | Spiral valve | 36 | 4 | 11.1 | 70 | 7 | 0.59 | 0.50 | 39 | 31 | 79.5 | 392 | 6 | 0.07 | 0.85 | 9 | 2 | 22.2 | 1 | 1 | – | |
| Rhinebothroides glandularis | Spiral valve | 36 | 0 | – | – | – | – | – | 39 | 12 | 30.8 | 24 | 1 | 0.12 | 0.96 | 9 | 0 | – | – | – | – | |
| Potamotrygonocestus sp. 1 | Spiral valve | 36 | 0 | – | – | – | – | – | 39 | 18 | 46.2 | 167 | 1 | 0.48 | 0.47 | 9 | 1 | 11.1 | 1 | 1 | – | |
| Potamotrygonocestus sp. 2 | Spiral valve | 36 | 0 | – | – | – | – | – | 39 | 5 | 12.8 | 11 | 2 | 0.18 | 1.02 | 9 | 0 | – | – | – | – | |