Lower number of sea lice

The level of sea lice have been low this spring and in many places the numbers have been lower than the same period last year.

"Low water temperatures, well coordinated delousing and good supervision is why our situation has been so good," says Kristina Landsverk, supervising director of the FSA.

Monitoring shows that sea lice pressure on wild salmonids has been low and that the majority of salmon smolts probably came out with little lice.

During the period January to June 2013, sealice numbers were lower than in recent years. Across the country, the average level remained below the maximum threshold of 0.5 adult females, ie the limit of lice that may be on farmed fish at a facility.

"The low lice levels is primarily due to low water temperatures. Temperatures have been up to two degrees below normal and low water temperatures mean salmon lice reproduce more slowly," says Ms Landsverk.

The sea lice infection of wild salmon is also lower this year than in previous years.

So far, the results indicate that 2013 is a year of very low infection pressure along parts of West and Central Norway in the spring and early summer, and both sea trout smolt and salmon smolts have been low infection during smolt migration.

 

You can read more on the report here 

(Source: The Fish Site)

Related news

Latest news

USCG confirms OPtimarin in Line for Ballast Water Approval

The United States Coast Guard (USCG) has confirmed that Norwegian ballast water treatment specialist Optimarin has become the first supplier to submit an application for type approval.

New order for Servogear

Servogear announces that they have received a new order from Brødrene Aa. 

Norwater AS reports boost in sales

The Norwater team reports of great interest and busy days in 2016. In a press release, they state that as of the first 8 months of the year, 2016 sales are already beyond target for the year as a whole.

Gaia-facts reaching ground control

The European Space Agency (ESA) has released the first data from the Gaia mission, which has the tremendous task of building the most precise 3D map of the Milky Way.

Polish delegation for Norwegian circular waste management

Against the background of the EU's ambitious waste management targets, Norwegian and Polish stakeholders met on Wednesday 14 September in Drammen.

Milestone at Mongstad Water Treatment Plant

SAR AS reports that an extensive upgrade to the water treatment plant at Mongstad reached a new milestone July. 

Servogear signs new contract with Özata Shipyard

Servogear has announced the signing of a new contract with Özata Shipyard in Turkey. The contract includes the delivery of Servogear Ecoflow PropulsorTMfor two 39 meter passenger catamarans (YN 41 & YN 42).

Statoil and Petrobras strengthen strategic partnership

Statoil reports that they have strengthened their cooperation in Brazil by signing a Memorandum of Understanding (MoU) with Petrobras.

TechInvent and Island Offshore/Centrica announced winners of ONS Innovation Award

TechInvent and Island Offshore/Centrica were announced winners of the ONS 2016 Innovation Awards, at the Innovation Awards Ceremony Tuesday 30 August.