A dual-target CRISPR assay detects WSSV DNA in shrimp. Promising for farm-side screening, it complements PCR but cannot replace laboratory confirmation.
Gnotobiotic zebrafish husbandry is advancing. Three studies show how to feed, colonise and verify these models without overstating what their results mean.
A ranavirus was isolated after wrasse died following transfer. With no external lesions, the investigation combined field records, pathology, PCR and virology.
A clonal transmissible melanoma is confirmed in brown bullhead catfish. The finding supports targeted surveillance without extrapolating beyond the study lake.
A carp-egg study tests ozone nanobubbles against Saprolegnia. Its promising result does not replace sound prevention, diagnosis or well-controlled trials.
Pseudoloma often remains subclinical in zebrafish. Combine PCR, histopathology and biosecurity to protect animal welfare, research validity and outcomes.
Three years without commercial fishing produced detectable gains in the Yangtze. Yet biomass, diversity and lasting ecosystem recovery do not move on one timetable.
Health records, life stage, quarantine barriers and release evidence matter more than a fixed waiting period when a new zebrafish line reaches a facility.
Cross-aquarium behavioural monitoring needs a shared ethogram, reliable observers and contextual data before husbandry practices can be compared safely.
When antibiotics fail on a fish farm, reassess diagnosis, true exposure, water and susceptibility results before choosing second-line treatment safely.
