title: First record of Tetramicra brevifilum in lumpfish (Cyclopterus lumpus, L.).
abstract: A microsporidian species with 98.3-98.4% nucleotide identity to Tetramicra brevifilum (Journal of Fish Diseases, 3, 1980, 495) was diagnosed in lumpfish (Cyclopterus lumpus, L.) broodstock held at a breeding and rearing facility in western Ireland. The fish were wild-caught from the west coast of Ireland, and the first case was diagnosed one year after capture. Clinical signs included severe bloating, lethargy, exophthalmos, anorexia, white patches on the cornea and externally visible parasitic cysts on skin and fins. Necropsy revealed severe ascites, white nodules and vacuoles in all the internal organs and partial liquefaction of the skeletal muscle. On histological examination, microsporidian xenomas were observed in all internal organs, the skin, skeletal muscle, gills and the eyes. The microsporidian species was identified by molecular analysis and transmission electron microscopy. This is the first record of T. brevifilum infecting lumpfish, and the disease is considered to be of potential significance to the rising aquaculture industry of this species.
authors.affiliation: Vet-Aqua International, Oranmore Business Park, Oranmore, Co. Galway, Ireland.|Galway-Mayo Institute of Technology, Marine and Freshwater Research Centre, Galway, Ireland.
authors.forename: F
authors.initials: F
authors.lastname: Scholz
authors.affiliation: Veterinary Sciences Division, Agri-food and Biosciences Institute of Northern Ireland, Stormont, Belfast, UK.
authors.forename: E
authors.initials: E
authors.lastname: Fringuelli
authors.affiliation: Carna Research Station, Ryan Institute, NUIG, Carna, Co. Galway, Ireland.
authors.forename: M
authors.initials: M
authors.lastname: Bolton-Warberg
authors.affiliation: Vet-Aqua International, Oranmore Business Park, Oranmore, Co. Galway, Ireland.|Galway-Mayo Institute of Technology, Marine and Freshwater Research Centre, Galway, Ireland.
authors.forename: M
authors.initials: M
authors.lastname: Marcos-López
authors.affiliation: Vet-Aqua International, Oranmore Business Park, Oranmore, Co. Galway, Ireland.
authors.forename: S
authors.initials: S
authors.lastname: Mitchell
authors.affiliation: Queens University, Belfast, UK.
authors.forename: P
authors.initials: P
authors.lastname: Prodhol
authors.affiliation: Veterinary Sciences Division, Agri-food and Biosciences Institute of Northern Ireland, Stormont, Belfast, UK.
authors.forename: D
authors.initials: D
authors.lastname: Moffet
authors.affiliation: Veterinary Sciences Division, Agri-food and Biosciences Institute of Northern Ireland, Stormont, Belfast, UK.
authors.forename: P
authors.initials: P
authors.lastname: Savage
authors.affiliation: Carna Research Station, Ryan Institute, NUIG, Carna, Co. Galway, Ireland.
authors.forename: S
authors.initials: S
authors.lastname: Murphy O'Sullivan
authors.affiliation: Galway-Mayo Institute of Technology, Marine and Freshwater Research Centre, Galway, Ireland.
authors.forename: I
authors.initials: I
authors.lastname: O Connor
authors.affiliation: Galway-Mayo Institute of Technology, Marine and Freshwater Research Centre, Galway, Ireland.
authors.forename: E
authors.initials: E
authors.lastname: McCarthy
authors.affiliation: Vet-Aqua International, Oranmore Business Park, Oranmore, Co. Galway, Ireland.
authors.forename: H D
authors.initials: HD
authors.lastname: Rodger
mesh_terms: D000818:Animals; D017756:Aquaculture; D004271:DNA, Fungal / Q000235:genetics; D005393:Fish Diseases / Q000382:microbiology* / Q000473:pathology; D007494:Ireland; D046529:Microscopy, Electron, Transmission; D016814:Microsporidia / Q000235:genetics / Q000302:isolation & purification* / Q000648:ultrastructure; D016881:Microsporidiosis / Q000401:mortality / Q000473:pathology / Q000662:veterinary*; D010473:Perciformes; D017422:Sequence Analysis, DNA
chemical_list: D004271:DNA, Fungal
keywords: 
  Cyclopterus lumpus
  ; 
  Tetramicra brevifilum
  ; cleaner fish; lumpfish; microsporidia