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Ammersee Cooperative Forecasts Steady Yields Despite Lake Nutrient and Climate Challenges

With only 19 active families, the cooperative is urging local chefs to spotlight wild-caught Renke to bolster its market as lake ecology shifts.

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Overview

  • Only 19 of the original 300 fishing families actively exercised their rights at the cooperative’s 335th annual meeting on July 2, 2025.
  • Regina Metzger predicted overall fish catches would match last year’s levels, noting Renke yields swung between just three fish and 30 kilograms on different days.
  • Hecht yields delivered “richtig gute” results this season, helping the species reclaim its status as a premium regional catch.
  • Prof. Herwig Stibor warned that a high nitrogen-to-phosphorus ratio and increased water stratification from warming are suppressing plankton growth and fish productivity.
  • The cooperative plans to market wild-caught Renke as a sustainable specialty by encouraging restaurants to feature it as the “Fang des Tages.”