Contrat de Rivière - RIPARIAS: detection and management of aquatic invasive alien species

Study Extent

freshwater managed or surveilled sites(ponds rivers) within the Senne river basin, from spring 2021 to present.

Sampling

During the visits, the entire site is prospected looking for a set of target IAS. The effort is adapted to the size of the site. For the search of invasive crayfish, traps are also set.

Method steps

1. Site prospection by officers in the RIPARIAS framework
2. Enconding observations using Fulcrum
3. Export and generate Darwin Core files for GBIF

The monitoring mostly targets a specific list of freshwater invasive alien species (detailed below). Absence records are only available for these target species (as their search is part of the protocol). However, had hoc observations of other aquatic species - introduced or native - are also included in the dataset.

1. Aponogeton distachyos L.f.
   rank: species
2. Astacus leptodactylus Eschscholtz, 1823
   rank: species
3. Cabomba caroliniana A.Gray
   rank: species
4. Cherax destructor Clark, 1936
   rank: species
5. Crassula helmsii (Kirk) Cockayne
   rank: species
6. Egeria densa Planch.
   rank: species
7. Elodea canadensis Michx.
   rank: species
8. Elodea nuttallii (Planch.) H.St.John
   rank: species
9. Faxonius immunis (Hagen, 1870)
   rank: species
10. Faxonius juvenilis (Hagen, 1870)
    rank: species
11. Faxonius rusticus (Girard, 1852)
    rank: species
12. Faxonius virilis (Hagen, 1870)
    rank: species
13. Gunnera manicata Linden
    rank: species
14. Gunnera tinctoria (Molina) Mirb.
    rank: species
15. Heracleum mantegazzianum Sommier & Levier
    rank: species
16. Houttuynia cordata Thunb.
    rank: species
17. Hydrilla verticillata (L.f.) Royle
    rank: species
18. Hydrocotyle ranunculoides L.fil.
    rank: species
19. Impatiens glandulifera Royle
    rank: species
20. Lagarosiphon major (Ridl.) Moss
    rank: species
21. Ludwigia grandiflora (Michx.) Greuter & Burdet
    rank: species
22. Ludwigia peploides (Kunth) P.H.Raven
    rank: species
23. Lysichiton americanus Hultén & H.St.John
    rank: species
24. Myriophyllum aquaticum (Vell.) Verdc.
    rank: species
25. Myriophyllum heterophyllum Michx.
    rank: species
26. Pacifastacus leniusculus (Dana, 1852)
    rank: species
27. Pistia stratiotes L.
    rank: species
28. Pontederia cordata L.
    rank: species
29. Procambarus acutus (Girard, 1852)
    rank: species
30. Procambarus clarkii (Girard, 1852)
    rank: species
31. Procambarus virginalis Lyko, 2017
    rank: species
32. Saururus cernuus L.
    rank: species

Senne river basin, Wallonia, Belgium