Gentle delousing

Salmon lice are a significant challenge for the aquaculture industry and represent a major threat to fish welfare and are a major burden on the economy of the sector.

The industry is fighting a fierce battle against the parasite and the need for preventive measures and treatment has been, and still is, huge.

A fish farmer will always use preventive measures to prevent high numbers of lice. Common measures are cleaner fish, pen skirts and preventive treatments with a Hydrolicer to keep the lice levels below the official limits.

Sooner or later, the vast majority of fish farmers will encounter situations where they come close to or exceed the official limits and the fish must have “emergency treatment”.

The Hydrolicer is a gentle non-medicinal delousing system, also known as a mechanical method.

When salmon are taken out of their natural environment in the sea and pumped on board a vessel for treatment, it is imperative that this is done in an extremely gentle way.

The Hydrolicer ensures this by handling the fish gently with a controlled speed, low pressure and low lifting height throughout the entire delousing process. Deep and wide channels help to reduce stress levels during the delousing. Pipe guides and flange connections without internal edges ensure safe transport paths for the fish. The Hydrolicer only uses sea water directly from the sea to treat the fish. There is no use of chemicals or water tempering in the delousing process.

All transport water is strained on board the vessel and filtered. Lice, egg strings and eggs are collected and destroyed.

Immediately after the treatment, the fish is ready for feeding.

With the main focus on good fish welfare at every stage of the delousing process, the Hydrolicer has achieved excellent results and has become a recognised and preferred system across a broad spectrum of the industry.