NEWS & TRENDS

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New system to assess gill disease could help salmon producers

Gill disease in Atlantic salmon is caused by a number of pathogens and has different clinical and pathological signs. This means that to date, there has been no standardized methodology developed for field diagnosis, despite the fact that gill health issues are a growing concern for salmon producers in all the major salmon-producing nations.

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Taking farmed fish welfare beyond the ‘five freedoms’

Over the last decade, a considerable body of research has demonstrated the capacity of fish to suffer – yet there remain unknowns around what causes the most serious negative impacts on their quality of life.

THIS ONE

Biosecurity’s crucial role in ensuring sustainable future for global aquaculture

An interview with Vera Agostini, deputy director, Fisheries and Aquaculture Division, the Food and Agriculture Organization (FAO) of the United Nations.

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New knowledge sheds light on bacterial threats to Asian tilapia aquaculture

A growing understanding of bacterial pathogens is highlighting the challenge Asian tilapia producers face, but good health-management practices on fish farms and new diagnostic technologies can help, says an academic expert.

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The road to sea-lice-resistant Atlantic salmon

An interview with Diego Robledo, PhD, scientist in aquaculture genetics and genomics at the Roslin Institute in Edinburgh.

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Non-medicinal delousing approaches cause damage to salmon gill tissue

New research shows that thermal and mechanical delousing techniques used in Atlantic salmon aquaculture can cause damage to gill tissue, though the health impacts of this on farmed fish remain unknown.

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Levels of antimicrobial resistance in Asian aquaculture ‘concerning,’ say scientists

Twenty years’ worth of data “raise urgent concerns” about antimicrobial resistance in Asian aquaculture, say the authors of a new review.

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Advanced diagnostic approaches for fish disease are welcome, but sometimes simpler is better

With technologies for molecular diagnosis of fish disease increasingly available, sometimes simpler approaches that have great diagnostic power are being ignored.

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New research on deltamethrin resistance could pave way for optimized sea lice treatment

New research on deltamethrin resistance in sea lice could help improve the effectiveness and reduce the costs of treating the global salmon industry’s “billion-dollar problem.”

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Prioritizing biosecurity can help tame tilapia lake virus

Tilapia lake virus (TiLV) is an emerging threat to tilapia aquaculture, with mortalities in some cases up to 90%. But with a focus on biosecurity, the impact can be considerably lessened.