FIBER (Swiss Fisheries Advisory Service) Newsletter 1/2026

Live sonar technology, which came onto the market a few years ago, is highly polarising and continues to spark much debate about its risks and benefits. There is little scientific data and few studies on its impact on fish stocks – a recently published literature review has now summarised the available data.

Further contents:

• Live sonar technology: challenges and opportunities
• The minnow – Fish of the Year 2026
• FIBER workshop on young trout
• FIBER online presentation on quagga and fish – 15 April, 8 p.m.
  Review of the FIBER seminar 2026 ‘Spawning season! – Monitoring, stocking and enhancement – Where should we start?
• SCNAT – Overview of biodiversity: status unsatisfactory, but some positive developments since 2010
• The state of biodiversity in Switzerland remains unsatisfactory.
• Children’s book ‘Sbiro & Lina u d Fische’

Background photo: ‘The broad-headed bullhead lives close to the bottom in cold, oxygen-rich water. To their surprise, researchers found specimens at depths of more than 200 metres — © Alwyn J. Roberts’. Source: https://www.bafu.admin.ch/de/fischvielfalt