Table 2

List of parasites of round goby, Neogobius melanostomus, from the upper River Elbe. P = prevalence, %; MI = mean intensity, IR = intensity range (minimum–maximum), A = mean abundance.

May 2016 October 2016 Total



Indices  P MI ± SD (IR) A P MI ± SD (IR) A P MI ± SD (IR) A
1 2 3 4 5 6 7 8 9 10
Ciliata
    Trichodina sp. 3.3 1.0 0.03       1.9 1.0 0.02
     Ichthyophthirius multifiliis       4.3 1.0 0.04 1.9 1.0 0.02
Digenea
     Diplostomum spp. mtc.       26.1 1.7 ± 1.0 (1–3) 0.4 11.3 1.7 ± 1.0 (1–3) 0.2
Acanthocephala
     Pomphorhynchus tereticollis cystacanth 96.7 24.6 ± 24.5 (1–82) 23.7 95.7 17.6 ± 16.6 (1–52) 16.8 96.2 21.5 ± 21.6 (1–82) 20.7
Nematoda
     Anguillicoloides crassus larvae       8.7 1.0 ± 0.0 (1) 0.1 3.8 1.0 ± 0.0 (1) 0.04
     Contracaecum rudolphii larvae       4.3 1.0 0.04 1.9 1.0 0.02
Bivalvia
     Anodonta sp. glochidia 23.3 1.4 ± 0.8 (1–3) 0.3       13.2 1.4 ± 0.8 (1–3) 0.2

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