In 2022, 146 fish were caught in the River Rhine and its tributaries, with October being the peak month, and the European perch was the most frequently caught species in the Rhine. Compared to previous years, there was a notable decline in total catches, a shift in peak activity from September to October, and a change in species composition, with the European perch surpassing the previously dominant Zander.
In 2022, a total of 146 fish were caught across the River Rhine and its tributaries, with October being the month of peak activity, yielding 33 catches. The largest fish recorded was a European perch measuring 100 cm. In the Rhine, the most frequently caught species was the European perch with 22 individuals. The Wiese saw the Common chub as the predominant catch, with 12 individuals, while the Birs also favored the Common chub, with 2 catches. Compared to previous years, the Rhine's catches have decreased, the Wiese's numbers have remained relatively stable, and the Birs has seen a decline in catches.
When comparing 2022 to previous years, a notable decline in total catches is evident, with 146 fish caught compared to an average of 290 in the preceding five years. The seasonal peak shifted to October, contrasting with previous years where September often saw the highest catches. In terms of species composition, the European perch emerged as the most frequently caught species in the Rhine, a shift from the dominance of Zander in recent years. The Birs and Wiese maintained a consistent presence of Common chub, though overall numbers have dwindled. This year did not set any new records for fish size, with the largest fish being consistent with previous years.
| Fish Species | Catches | Rhine | Wiese | Birs | Average Length | Max Length |
|---|---|---|---|---|---|---|
| Alet | 28 | 14 | 12 | 2 | 42.5 | 65.0 |
| Egli | 25 | 22 | 1 | 2 | 21.3 | 25.0 |
| Rotauge | 22 | 22 | 0 | 0 | 10.7 | 27.0 |
| Hecht | 20 | 20 | 0 | 0 | 63.1 | 100.0 |
| Barbe | 18 | 15 | 2 | 1 | 49.8 | 65.0 |
| Zander | 13 | 13 | 0 | 0 | 65.8 | 84.0 |
| Bach-/Flussforelle | 6 | 3 | 3 | 0 | 48.8 | 72.0 |
| Wels | 5 | 5 | 0 | 0 | 74.7 | 99.0 |
| Brachsmen | 3 | 3 | 0 | 0 | None | nan |
| Äsche | 2 | 1 | 1 | 0 | 38.0 | 38.0 |
| Andere | 2 | 2 | 0 | 0 | 6.5 | 7.0 |
| Regenbogenforelle | 1 | 0 | 1 | 0 | 41.0 | 41.0 |
| Rapfen | 1 | 1 | 0 | 0 | 70.0 | 70.0 |
🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.