Sea lice

The salmon industry's first new medicinal treatment in over a decade is on the cusp of its first commercial deployment in Norway.

Salmon given feeds containing microalgae are more resistant to sea lice, according to the authors of a new study, although further research is now needed.

The Norwegian Medicines Agency (NoMA) has authorised Benchmark PLC’s Ectosan Vet (BMK08) sea lice treatment.

Fish farm pens that can be submerged to avoid issues such as parasites and extreme weather conditions are proving their worth, although there are still some challenges to be overcome, according to a new study.

Martin Welch, co-founder of KelpCrofting and inventor of the KelpRing cleaner fish hide, discusses the huge range of benefits that can be brought about by small-scale seaweed farming in the North Atlantic and beyond.

The seven winners of a European initiative to that aims to accelerate innovation in sustainable aquaculture have been announced today.

A new project aims to produce ballan wrasse that are more effective at eating sea lice on salmon farms.

New research suggests that using lumpfish or ballan wrasse to combat sea lice in offshore fish farms isn’t workable – the strong currents and extreme weather conditions leave them at risk of exhaustion and injury.

Starfish, an innovative closed-containment salmon farming system, has now been installed in a Norwegian fjord and is due to be stocked later in the year.

Lower stocking densities in salmon farms can lead to greater levels of sea lice infestation per fish, according to a new study.

Sea lice averages for the Scottish farmed salmon sector were 0.52 adult female lice per salmon during 2020 – the second lowest level on record.

A novel means to assess sea lice levels is set to be trialled in Scotland in a project supported by the UK Seafood Innovation Fund.

The offspring of salmon that have been bred to be more resistant to sea lice may not be so resistant in warmer waters, according to new research by Nofima.

Different families of lumpfish show marked differences in lice grazing, cataract prevalence and size, pointing to the possibility of breeding fish that are more effective at the removal of sea lice from farmed salmon, ac…

A secret species of filter-feeder, placed in novel devices within fish pens, could help to greatly reduce the numbers of parasites, including sea lice, affecting aquaculture operations.

Manual counting of sea lice – an activity that is stressful for fish, time-consuming for farmers and statistically questionable – is no longer mandatory on all salmon farms in Norway, following a landmark ruling.

A new technique that uses a combination of ultrasound and infrared light to remove sea lice from farmed salmon is due to be trialled shortly.

A new project will use the gene editing tool CRISPR-Cas9 to assess why Pacific salmon species are less susceptible to sea lice than Atlantic salmon.