A new Atlantic salmon study measures Spironucleus salmonicida sensitivity to UV, while a RAS biosecurity trial that remained negative even in untreated controls exposes the limits of prevention claims.
Ultrasound monitoring of 120 zebra shark eggs clarifies when embryos and abnormalities may be detected, while showing why the images must remain cautious decision-support tools.
A study tested electrical euthanasia of adult zebrafish groups in their housing tanks, finding that performance depended on tank volume and stocking level.
This fastidious mycobacterium can cause systemic disease in laboratory zebrafish and persist in biofilms, calling for integrated fish and environmental surveillance.
In Port Jackson sharks, suturing internal-tag incisions reduced protrusion risk but increased inflammation and bacterial colonisation, revealing a protocol trade-off rather than a universal rule.
A study across eight Italian farms documents AcIV-E circulation and the diagnostic challenge posed by non-specific signs and the lack of routine cell culture.
FELASA–AALAS recommendations provide a structured way to introduce fish colonies while protecting health status, staff safety and the reliability of research.
Standardised reflex observations can provide a rapid field measure of fish vitality after capture, provided the protocol is validated for the species and release context.
An experimental killed bacterial vaccine delivered in feed improved channel catfish survival after Aeromonas challenge, highlighting both the promise and constraints of oral boosters.
