Table 1

Occurrence of examined epibionts (S. japonica, Vorticellidae) in N. davidi shrimp collected from the thermally polluted canal of Oder River.

N. davidi Scutariellidae Vorticellidae



No. Sex Adults quantity Eggs quantity Confirmed activity (damages in gills) Confirmed presence (live individuals)*
1 F 2 8 + ++
2 F 1 3 + ++
3 F 1 2 + ++
4 M 1      
5 F 1      
6 F   1 + ++
7 F   1 + +
8–13 F (3)     + ++
M (2)     + +
14–120 F (32)       ++
F (25)       +
M (27)       +
F (16)        
M (5)        

*Higher quantity (hundreds) of specimens marked with “++”.

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