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On the potential role of Mergus merganser as transport hosts for Tetracapsuloides bryosalmonae
Author(s) -
SchmidtPosthaus Heike,
Mattmann Prisca,
Hirschi Regula,
Schneider Ernst
Publication year - 2020
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/tbed.13719
Subject(s) - biology , parasite hosting , salmo , zoology , feces , myxozoa , ecology , fishery , fish <actinopterygii> , world wide web , computer science
Transmission paths in the distribution of proliferative kidney disease (PKD) of salmonids are still largely unknown. In this study, the role of goosander ( Mergus merganser ) as possible transport host for Tetracapsuloides bryosalmonae through faeces was examined. Goosander fledglings were fed exclusively with diseased brown trout ( Salmo trutta fario ). In all trout used for feeding, intratubular sporogonic stage of the parasite was confirmed histologically. Between one to 10 hours post‐feeding, the goosander faeces were sampled and tested for T. bryosalmonae DNA. In qPCR, only DNA fragments were found, and in conventional PCR, no amplification was confirmed. Therefore, we hypothesize that the role of goosander as transport hosts for T. bryosalmonae via their faeces can be neglected.