First report of Myxobolus neurofontinalis (Bivalvulida Myxobolidae) infecting anadromous Brook Trout from Prince Edward Island, Canada

First report of Myxobolus neurofontinalis (Bivalvulida : Myxobolidae) infecting anadromous Brook Trout from Prince Edward Island, Canada

© 2024 American Fisheries Society.

Bibliographische Detailangaben
Veröffentlicht in:Journal of aquatic animal health. - 1998. - 36(2024), 1 vom: 20. März, Seite 91-96
1. Verfasser: Ksepka, Steven P (VerfasserIn)
Weitere Verfasser: Groman, David B, Bourque, Laura, Bullard, Stephen A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Journal of aquatic animal health
Schlagworte:Journal Article Myxozoa morphology pathology DNA, Ribosomal
Beschreibung
Zusammenfassung:© 2024 American Fisheries Society.
OBJECTIVE: During routine histological examination of tissues from mortality events of anadromous Brook Trout Salvelinus fontinalis from Prince Edward Island (PEI), Canada, myxospores consistent with Myxobolus were observed infecting the central nervous system. The objective of this study was to identify the species of Myxobolus infecting the nervous system of anadromous Brook Trout from PEI, Canada
METHODS: Myxospore morphology, small subunit (SSU) ribosomal DNA (rDNA) sequence data, and histology were used to identify myxospores isolated from infected Brook Trout
RESULT: Myxospore measurements from the PEI samples matched those reported in the description of Myxobolus neurofontinalis from North Carolina. A 1057-bp fragment of the SSU rDNA from myxospores collected from Brook Trout in PEI was identical to an isolate of M. neurofontinalis (MN191598) collected previously from the type locality, New River basin, North Carolina. Histological sections confirmed infections were intercellular in the central nervous system. Minimal host response was observed, with only sparse mononuclear inflammatory infiltrates present at the periphery of and within dispersed myxospores, suggesting that infections are not pathogenic to Brook Trout
CONCLUSION: Myxospores were identified as M. neurofontinalis, which was previously described from the central nervous system of Brook Trout from the New River basin, North Carolina, USA. This constitutes the first time M. neurofontinalis has been documented outside of the New River basin in North Carolina
Beschreibung:Date Completed 07.03.2024
Date Revised 07.03.2024
published: Print-Electronic
Citation Status MEDLINE
ISSN:1548-8667
DOI:10.1002/aah.10209