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| Url | https://www.unio.lu/news/gravel-deposition-in-the-our-and-sre-rivers/ |
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| MetaTitle | Gravel deposition in the Our and Sûre rivers - Thick shelled river mussel Life UNIO / Natura 2000 |
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| MetaDescription | Gravel deposition in the Our and Sûre rivers. Thick shelled river mussel Life UNIO / Natura 2000 |
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On both rivers one can see gravel hives. The next high-water will drift  the gravel downwards and the newly formed gravel bancs will be accepted and used by fishes for spawning activity.

- [![Gravel deposition in the Our and Sûre rivers](/thumbnails/70962-212-0-Max.jpg)](/files/70962.jpg "Gravel deposition in the Our and Sûre rivers")
- [![Gravel deposition in the Our and Sûre rivers](/thumbnails/70961-212-0-Max.jpg)](/files/70961.jpg "Gravel deposition in the Our and Sûre rivers")