Conservation measures for Austropotamobius pallipes may involve the relocation of animals into protected healthy sites or introduction into rearing center for species recovery. Prior to movement of animals it is therefore essential that health surveys are conducted to prevent further disease transfer. One of the most widespread significant disease of freshwater crayfish globally are microsporidiosis. The aim of this study was to trace a map of distribution of the affected white-clawed crayfish populations in Italy. The whiteness allows a macroscopically easy detection of the disease during crayfish sampling. During the period 2009-2016 we monitored 34 populations for a total of 3023 crayfish. From 11 streams we found and collected 100 crayfish suspected of microsporidiosis, and 86 out of them were analyzed using histological and biomolecular techniques. Nine populations were affected by Thelohania contejeani, eight by unidentified microsporidian, who was found in an Apennine crayfish population for the first time

Microsporidian infection in white-claw crayfish populations is widespread in Northern Italy

FEA, GIANLUCA;GHIA, DANIELA;SACCHI, ROBERTO
2017

Abstract

Conservation measures for Austropotamobius pallipes may involve the relocation of animals into protected healthy sites or introduction into rearing center for species recovery. Prior to movement of animals it is therefore essential that health surveys are conducted to prevent further disease transfer. One of the most widespread significant disease of freshwater crayfish globally are microsporidiosis. The aim of this study was to trace a map of distribution of the affected white-clawed crayfish populations in Italy. The whiteness allows a macroscopically easy detection of the disease during crayfish sampling. During the period 2009-2016 we monitored 34 populations for a total of 3023 crayfish. From 11 streams we found and collected 100 crayfish suspected of microsporidiosis, and 86 out of them were analyzed using histological and biomolecular techniques. Nine populations were affected by Thelohania contejeani, eight by unidentified microsporidian, who was found in an Apennine crayfish population for the first time
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11571/1188466
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