Isolation, Identification, and Pathogenicity of Retrieved from European Seabass () Farmed in Türkiye.

In this study, strain C24 was isolated from cases of winter mortalities of hatchery-reared European seabass () broodstock in Türkiye. The first mortalities were reported in September 2016 and occurred annually in early autumn/late winter until the end of February 2019, when 15% of accumulated mortality was recorded. Diseased moribund fish exhibited general septicemic signs, including dermal ulcerations with hemorrhagic margins, distended abdomens, and hemorrhages below the pectorals, pelvic fins, and at the operculum.

Multi-agent hybridization confirms . Branchiomonas cysticola as a major contributor in complex gill disease in Atlantic salmon.

Gill diseases may cause high mortalities in farmed Atlantic salmon. In seawater reared fish co-infections involving the epitheliocystis associated bacterium . Branchiomonas cysticola, the microsporidian , the causative agent of amoebic gill disease and salmon gill poxvirus are common and histopathological lesions may be complex.

The influence of diet on the microbiota of live-feed rotifers (Brachionus plicatilis) used in commercial fish larviculture.

Live-feed is indispensable to commercial fish larviculture. However, high bacterial loads in rotifers could pose a biosecurity risk. While this may be true, live-feed associated bacteria could also be beneficial to fish larvae through improved feed utilization or pathogen inhibition following host microbiota modification.