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DEMNA : Freshwater fish occurrences from monitorings on the biological quality of water bodies in Wallonia

Latest version published by Service Public de Wallonie – Département d’Etude du Milieu Naturel et Agricole (SPW – DEMNA) on Jun 29, 2017 Service Public de Wallonie – Département d’Etude du Milieu Naturel et Agricole (SPW – DEMNA)

This occurrence dataset countains fresh water fish occurrences in wallonia (Belgium) compiled by Hydrobiology unit at the Department of Study of the Natural and Agricultural Environment (DEMNA- Public Service of Wallonia). The data come from an ongoing monitoring network on the biological quality of water bodies in Wallonia, and previous/alternative samplings events performed by DEMNA's hydrobiology unit. Opportunistic observations made during non-fish-target activities has also been included into the dataset.

The Current monitoring network is composed of more than 440 sites, distributed among small streams to the largest rivers/canals from the hydrographic districts of the Meuse, the Scheldt, the Rhine and the Seine. The network was set up in order to perform the biological monitoring of water courses (Fishes, diatoms - doi:10.15468/vvkk9a -, macroinvertebrates - doi:10.15468/ew00u8 - and macrphytes- doi:10.15468/cumtkq) required, among other missions and activites of the DEMNA, for the Natura 2000 and Water Framework directive reportings.

The updates will be realised annually, in order to implement previous-year validated data. We intend to integrate associated biometrics to this publication into the post-2018 updates. Results from the water masses monitoring can be accessed here : http://geoapps.wallonie.be/CigaleInter/. More information is available upon request adressed to the DEMNA, and please note that this dataset does not replace any official convention on the provision of biological data delivered by the department.

Data Records

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 22,447 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.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 22,447 records in English (626 KB) - Update frequency: annually
Metadata as an EML file download in English (18 KB)
Metadata as an RTF file download in English (17 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Origin of the information: SPW-DGO3-DEMNA-Hydrobiology Unit

Rights

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 (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 04b233fa-dc67-4aeb-bce8-7c9b244ef476.  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.

Keywords

Occurrence; IBIP; ElectroFishing; Wallonia; fresh waters; Belgium; Bony fish; Cyclostoma; Water directive; monitoring; Natura 2000; Observation

Contacts

Who created the resource:

Thierry Demol
Principal Graduate
Department d'étude du milieu naturel et agricole Avenue Maréchal Juin 23 5030 Gembloux Namur BE

Who can answer questions about the resource:

Maxime Coupremanne
Data liaison officer
Belgian Biodiversity Platform 22 Avenue de la faculté 5030 Gembloux Namur BE
Thierry Demol
Principal Graduate
Department d'étude du milieu naturel et agricole Avenue Maréchal Juin 23 5030 Gembloux Namur BE

Who filled in the metadata:

Maxime Coupremanne
Data Liaison officer
Belgian Biodiversity Platform 22 Avenue de la faculté 5030 Gembloux Namur BE
Thierry Demol
Principal Graduate
Department d'étude du milieu naturel et agricole Avenue Maréchal Juin 23 5030 Gembloux Namur BE
Frédéric Cherot
Biodiversity expert
Département d'étude du milieu naturel et agricole Avenue Maréchal Juin 23 5030 Gembloux Namur BE

Who else was associated with the resource:

Principal Investigator
François Darchambeau
Adjunct
Department d'étude du milieu naturel et agricole Avenue Maréchal Juin 23 5030 Gembloux Namur BE
Curator
Maxime Coupremanne
Data liaison officer
Belgian Biodiversity Platform 22 Avenue de la faculté 5030 Gembloux Namur BE

Geographic Coverage

Wallonia, Belgium. Some exceptionnal observations might occur within the neighboring regions (Flanders) or countries (France, Luxembourg, etc.).

Bounding Coordinates South West [49.504, 2.769], North East [50.799, 6.361]

Taxonomic Coverage

Fresh water fishes from Belgium. Among the 64 freshwater fish taxa represented in the dataset, 5 are family-level, 10 gender-level, and 49 are species. Initial encoding was based on taxa vernacular name, and loach species has been removed from the dataset since Cobitis taenia, Barbatula barbatula and Misgurnus fossilis belong to distinct families, leading to a taxonomic rank with little scientific sense.

Subphylum  Agnatha (Cyclostome)
Superclass  Osteichthyes (Bony fish)

Temporal Coverage

Start Date / End Date 1933-12-28 / 2015-11-17

Project Data

This Directive covers a complex set of objectives, instruments and obligations. The directive is mainly concerned with the organization and management of water at the river basin level.

Title Water Framework Directive (FWD)
Identifier 2000/60/CE
Funding Countries are responsible for achieving the objectives of the Directive. In the context of this dataset, funding is provided by the Public Service of Wallonia (SPW).
Study Area Description Water bodies from Europe,Managed at the basin scale. According to six-year management cycles (2010-2015, 2016-2021, etc.). International or national basin districts have been delineated. These districts encompass not only the entire hydrographic network but also the drainage area and the estuaries, including groundwater, marine and related associated environments.
Design Description The aim of this Directive is to achieve a good biological and chemical quality of the waters masses. Attention is focused on: - the composition of fauna and flora - the amount of oxygen or nutrients (fertilizer) in the water - pH - Hydromorphological aspects (current,etc.) of river beds

The personnel involved in the project:

Principal Investigator
François Darchambeau

Sampling Methods

The protocol for the collection of fish by electrofishing is based on the standardized procedure of the CEN : Water Analysis -Fishing with Electricity (EN 14011, CEN, 2003). The sampling period is mainly concentrated between late summer and early autumn, and sampling takes place during day-light hours. The procedure and equipment are adapted according to the depth and wetted width of the bed of the sampled section. The length of this sampled section of the river ranges from 10 to 20 times its wetted width, with a minimum set to 100 m. Shallow rivers (under 0.7 m depth) are sampled by teams composed of an anode carrier (Direct Current or Pulsed Direct Current), an operator handling the power cable, two operators capturing individuals with hand-net (max. 6mm mesh size in order to capture smaller juveniles), and two operators holding a basin for collecting individuals. The teams (one anode team per 5 m of river width) cross the section by foot and against the current, in order to avoid the turbidity to affect the sampling. Two passes are made by gently advancing, with a slow lateral swing of the anode. When necessary, hand-net operators try to get the fish out of their hiding places. Deeper rivers (higher than 0.7 m) must be navigated by boat, making full station sampling impossible. Sub-sampling is carried out from the boat, along both the river banks and covering all meso-habitats in order to have a representative sample of the river with a minimal sampling area of 1000 square meters.

Study Extent The dataset is focused on surface water bodies from Wallonia. The current permanent monitoring network is composed of more than 440 control stations, distributed among the hydrographic districts of the Meuse, the Scheldt, the Rhine and the Seine. Some data come from surveys prior to the establishment of the current network (before 2006), opportunistic harvestings, and older data (before 1980) collected in other activities of the hydrobiology unit at the department of studiy of the Natural and Agricultural environment.
Quality Control A set of constraints of the database ensure a first standardization of content (predefined taxa lists, habitat typology, etc.). The data are only validated after verification by the experts in charge of the calculation and reporting of the Biological Fish Integrity Index (IBIP).

Method step description:

  1. Fish capture by electrofishing. Collection of individuals into basins.
  2. The people who transport the fish collection basins ensure the welfare of the fish by regularly transmitting the catch to the fish transporters on the banks.
  3. The fish transport team carries the catch to the sorting table, where the biometric supervisor decides what to do with it, either an immediate takeover or a stall in good condition.
  4. Biometrics include a table equipped with a measuring board and a scale where the fish are determined by an experienced person and where notes are taken.
  5. Fish are stored in the cages after they have been checked, throughout the duration of the fishing and until they are released.
  6. The field notes are transmitted to the person in charge of the biological indicator in the database of the unit: AQUABIO.

Additional Metadata

The Data set also countains 'Ad Hoc observations'(SamplingProtocol). These observations come from field notes taken by the Hydrobiology unit outside the frame of electrofishing events, such as macroinvertebrates samplings in rivers.

Purpose Calculation of the fish integrity index IBIP, in the context of the monitoring of the biological quality of water bodies in Wallonia. Permanent control sites network was set up for the EU Water Framework Directive, but the data are enriched with other monitoring projects and studies from the Department of Study of the Natural and Agricultural Environment.
Maintenance Description Data are reported to Europe annually, which requires a consequent validation work. Thereby, updates of this data set will be performed by implementing previous-year new data in parallel with this reporting (eg. data from 2016 will be available early 2017).
Alternative Identifiers 04b233fa-dc67-4aeb-bce8-7c9b244ef476
http://ipt.biodiversity.be/resource?r=zrtv