Draft genome sequences of 13 isolates from farmed Norwegian (lumpfish) and (turbot).

Thirteen bacterial isolates of were sequenced and assembled. The strains were isolated from four disease outbreaks in farmed marine fish in Norway. Eight isolates were from (lumpfish), and five were from (turbot).

Phylogeography and host specificity of pathogenic to sea-farmed fish in the north-east Atlantic.

The present study was undertaken to address the recent spate of pasteurellosis outbreaks among sea-farmed Atlantic salmon () in Norway and Scotland, coinciding with sporadic disease episodes in lumpfish () used for delousing purposes in salmon farms. Genome assemblies from 86 bacterial isolates cultured from diseased salmon or lumpfish confirmed them all as members of the family, with phylogenetic reconstruction dividing them into two distinct branches sharing <88% average nucleotide identity. These branches therefore constitute two separate species, namely and the as-yet invalidly named "".

MLVA genotyping of Moritella viscosa reveals serial emergence of novel, host-specific clonal complexes in Norwegian salmon farming.

A Multi-Locus Variable number of tandem repeat Analysis (MLVA) genotyping scheme was developed for the epidemiological study of Moritella viscosa, which causes 'winter ulcer' predominantly in sea-reared Atlantic salmon (Salmo salar L.). The assay involves multiplex PCR amplification of six Variable Number of Tandem Repeat (VNTR) loci, followed by capillary electrophoresis and data interpretation.

Draft Genome Sequences of 23 Isolates from Farmed Norwegian Lumpfish, .

Draft genome sequences of 23 sp. strains that were isolated from Cyclopterus lumpus (lumpfish) were investigated to elucidate possible routes of transmission between Salmo salar (Atlantic salmon) and lumpfish.

Tenacibaculosis in Norwegian Atlantic salmon (Salmo salar) cage-farmed in cold sea water is primarily associated with Tenacibaculum finnmarkense genomovar finnmarkense.

Skin conditions associated with Tenacibaculum spp. constitute a significant threat to the health and welfare of sea-farmed Atlantic salmon (Salmo salar L.) in Norway.

Multilocus sequence analysis reveals different lineages of Pseudomonas anguilliseptica associated with disease in farmed lumpfish (Cyclopterus lumpus L.).

The bacterium Pseudomonas anguilliseptica has in recent years emerged as a serious threat to production of lumpfish in Norway. Little is known about the population structure of this bacterium despite its association with disease in a wide range of different fish species throughout the world. The phylogenetic relationships between 53 isolates, primarily derived from diseased lumpfish, but including a number of reference strains from diverse geographical origins and fish species, were reconstructed by Multi-Locus Sequence Analysis (MLSA) using nine housekeeping genes (rpoB, atpD, gyrB, rpoD, ileS, aroE, carA, glnS and recA).

sp. nov., isolated from skin ulcers of sea-farmed fish, and description of sp. nov. with subdivision into genomovars and .

Results of previous multilocus sequence and whole-genome-based analyses have suggested that a homogeneous group of isolates belonging to the genus , represented by strain TNO020 and associated with skin ulcer development in sea-farmed fish, represents an as-yet-undescribed species. Comparative whole-genome analysis performed in the present study clustered five isolates, including TNO020, in a distinct lineage within the genus . Phenotypic differences, high intra-cluster average nucleotide identity (ANI) values and low ANI values with other species support the proposal of a novel species, for which we propose the name sp.

Multilocus sequence analysis reveals extensive genetic variety within Tenacibaculum spp. associated with ulcers in sea-farmed fish in Norway.

Skin ulcer development in sea-reared salmonids, commonly associated with Tenacibaculum spp., is a significant fish welfare- and economical problem in Norwegian aquaculture. A collection of 89 Tenacibaculum isolates was subjected to multilocus sequence analysis (MLSA).