SALMONIDS

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Vaccine study offers new insight on Norway’s winter ulcer problem

In recent years, the Norwegian aquaculture industry has struggled against the rise of “variant” forms of Moritella viscosa, a bacterium which causes the disease winter ulcer in Atlantic salmon. This has led to concerns about the efficacy of existing vaccines against the pathogen.

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Tackling jellyfish blooms affecting farmed fish in the British Isles

Tiny jellyfish have contributed to cases of gill disease in farmed Atlantic salmon in Scotland and Ireland in the past year, but early recognition and maintaining good general gill health are key to reducing the threat.

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Race to control bacterial disease which threatens Irish salmon production

The bacterium Piscirickettsia salmonis, which causes the disease salmonid rickettsial septicemia (SRS) in Atlantic salmon, is becoming an increasing concern on fish farms in Ireland.

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The future of sea louse control on salmon farms: do genetic technologies hold the key?

Genetic technologies could give salmon farmers the crucial tools they need to prevent sea louse infestations, according to researchers.

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Research highlights ways to improve the lives of cleaner-fish species

The welfare of lumpfish used in biological control of sea lice significantly worsens after they are moved to cages at sea, while for wrasse, challenges in nurseries are causing problems before sea transfer.

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Revealing shared welfare challenges and solutions in the Scottish salmon industry

Sea lice, gill health and environmental challenges are the major considerations for Scottish salmon producers looking to improve the welfare of their fish, according to an Institute of Aquaculture survey.

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Exposed, offshore salmon farms may complicate fish-health challenges

Life on exposed offshore aquaculture sites may increase the susceptibility of farmed Atlantic salmon to parasites and pathogens.

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Cutting antibiotic use in Chile’s growing salmon sector

An interview with Francisco Vallejos, MV, deputy health manager for Camanchaca SA.

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Navigating barriers on the road to gene-edited fish

Gene editing could aid fish resistance to disease, as well as provide other advantages to producers, but there are still barriers to overcome before it becomes widely used in global aquaculture, according to an industry expert.

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How to balance fish welfare and environmental protection in aquaculture

Fish farmers’ efforts to protect the environment often come at a cost to fish welfare, say scientists at the University of Melbourne, in a new opinion paper.