Table 5

Infestation (mean number) of Knipowitschia panizzae and Pomatoschistus canestrinii with glochidia of Anodonta anatina and water temperature of Lake Trasimeno during sampling period. *April 22: only one, not infested, specimen of K. panizzae was collected.

Date Temperature Infestation K. panizzae P. canestrinii
03/03/2022 7.0 °C yes 2 2.2
03/21/2022 10.8 °C yes 1.9 1.6
03/28/2022 14.7 °C yes 2.5 1.8
04/22/2022 16.3 °C yes * 1.5
05/24/2022 24.4 °C no

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