News features and technical articles about the evolution of aquaculture, one of the world’s fastest growing industries.

parasites

Health & Welfare

Predicting parasite outbreaks in fish farms through environmental DNA

This article presents the results of a study using environmental DNA methodology for the early detection and quantification of various pathogens in farmed barramundi, where the technique showed to be a powerful and novel tool to predict fish mortalities. 

Health & Welfare

Common salt a useful tool in aquaculture, part 2

The preventive use of common salt (sodium chloride) by commercial producers of freshwater fishes has many benefits, including helping with the routine prevention of losses due to diseases, stress and mishandling during transport, harvesting, grading, counting, weighing and induced spawning. 

Health & Welfare

Linking water treatment practices and fish welfare

Quantification of fish behavior is complex and depends on the experimental setup and biomarkers applied. A simple method was tested to quantify locomotor behavior to evaluate the effects of simulated water treatment scenarios using peracetic acid. 

Health & Welfare

Parasite treatment reduces F. columnare infection in tilapia

The authors conducted a study to evaluate whether treatment of Trichodina-parasitized tilapia with formalin would improve fish survival and reduce F. columnare infection. Tilapia not treated with formalin showed significantly higher mortality than treated fish. 

Health & Welfare

Economic impacts of aquatic parasites on global finfish production

Obligate and opportunistic parasites play a critical role in determining the productivity, sustainability and economic viability of global finfish aquaculture enterprises. Without stringent and appropriate control measures, the impacts of these pathogens can often be significant.