Login

Traffic jam

Opinion19 Aug 2025by Dr Martin Jaffa

Norway has its “traffic light system” (TLS) as a form of aquaculture regulation related to the number of sea lice estimated to be on farm. The regulators believe, based on the views of expert scientists, that the sea lice load on a salmon farm has a direct impact on the state of wild fish stocks. Thus if sea lice levels on farms can be kept to the lowest possible number, then stocks of wild salmon and sea trout will thrive.

GUAITECAS salmon farm ChiileAdobeStock 390979199 20250819

Salmon farm, Guaitecas, Chile

You need to REGISTER FOR FREE or LOGIN to read this content

REGISTER

LOGIN

Marine Operative - Bakkafrost Scotland Limited

Portree£35,677.16 per annum

Deckhand - Bakkafrost Scotland Limited

Cairndow£38,000 to £40,000 per annum

Deckhand (Ailsa Craig) - Mowi Scotland

Argyll & Bute£28,258 to £31,648 per annum

Farm Technician (Colonsay) - Mowi Scotland

Argyll & Bute£28,258 to £31,648 per annum

Marine Operative (2 weeks on/off) - Bakkafrost Scotland Limited

Portree£34,576.30 per annum

100 jobs may go as Bremnes calls time on Salma brand

Sea Farming15 Jan 2025

15,000 fish escape at Lerøy site

Sea Farming30 Oct 2024

2023 saw Scottish salmon production fall 11%

Sea Farming16 Jan 2025

2025 is a turning point, says Salmon Scotland's Tavish Scott

Sign up to our daily Newsletters

We at Fish Farmer Magazine endeavour to ensure that all our reports are fair and accurate and comply with the Editors’ Code of Practice set by the Independent Press Standards Organisation (IPSO). We realise, however, that mistakes happen from time to time. If you think we have made a significant mistake and you wish to discuss this with us, please let us know as soon as possible by any of the three methods: emailing editor@fishfarmermagazine.com; telephoning the editor on 01315517949 ; writing to the Editor at Fish Farmer Magazine, The North Quarter, Fettes Park 496 Ferry Road, Edinburgh, EH5 2DL. We will attempt to resolve your issue in a timeous, reasonable and amicable manner. However, if you are unsatisfied with our response, you can contact IPSO, which will investigate the matter. You can either telephone IPSO on 0300 123 2220 or email inquiries@ipso.co.uk. IPSO is an independent body which deals with complaints from the public about the editorial content of newspapers and magazines. We will abide by the decision of IPSO.