Freshwater mussels occurrences in Wallonia is a presence-only occurrence dataset dedicated to mussels observations (Unio crassus, U. pictorum, U. tumidus, Anadonta anatina, A. cygnea and Pseudanodonta complanata) made by the Département d'Etude du Milieu Naturel et Agricole (SPW-DEMNA) and partners, between 2002 and 2020.
The data were collected within the framework of the department's missions, mostly related to the Natura 2000 monitoring and reporting and the LIFE Belgian Nature Integrated Project (BNIP).
This dataset includes only verified presence records but some populations have disappeared during the period covered. It should be considered as an historical monitoring of the remaining populations and caution should be paid on the dates of the records.
The absence of data does not always mean that the species is not present and absence data were not included in the dataset to avoid their misinterpretation but are available by request adressed to the Department. Please feel free to contact the department if you have remarks/questions regarding the dataset or about freshwater mussels monitoring.
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 2,415 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Motte G (2022): DEMNA-DNE : Freshwater mussels occurrences in Wallonia. v1.6. Service Public de Wallonie – Département d’Etude du Milieu Naturel et Agricole (SPW – DEMNA). Dataset/Occurrence. https://ipt.biodiversity.be/resource?r=uniocrassuswal&v=1.6
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Service Public de Wallonie – Département d’Etude du Milieu Naturel et Agricole (SPW – DEMNA). This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
This resource has been registered with GBIF, and assigned the following GBIF UUID: e544c55b-ead2-4311-8f57-50ab5907d8dc. Service Public de Wallonie – Département d’Etude du Milieu Naturel et Agricole (SPW – DEMNA) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Belgian Biodiversity Platform.
Occurrence; Wallonia; monitoring; freshwater; mussel; ; Observation; Occurrence
Who created the resource:
Who can answer questions about the resource:
Who filled in the metadata:
Wallonia, Southern Belgium
|Bounding Coordinates||South West [49.781, 2.681], North East [50.816, 6.108]|
Freshwater mussels species of Wallonia.
|Species||Unio Crassus (Mulette épaisse), Unio pictorum (Mulette des peintres), Unio tumidus (Mulette renflée), Anodonta cygnea (Anodonte des cygnes), Anodonta anatina (Anodonte des rivières), Pseudanodonta complanata (Anodonte comprimée)|
|Start Date / End Date||2002-01-01 / 2020-09-23|
This dataset includes records obtained in different frameworks and protocols: opportunistic observations, Natura 2000 samplings, research and monitoring projects (thesis, Life, etc.).
|Study Extent||Wallonia, southern Belgium from 2002 to 2020.|
|Quality Control||All data has been validated by a process based on image evidence, the expertise of the observer or investigation by an expert from the department.|
Method step description:
- Monitoring in different contexts
- Aggregation of occurrences data and validation
- Extraction of mussels presence records to darwinCore
|Maintenance Description||This dataset will be upgraded annually with new validated observations.|