Phenology and biological traits of migrating eels sampled by trapping in the survey in the Scorff river (France)

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 16,519 records.

1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

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.

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How to cite

Researchers should cite this work as follows:

Jeannot N, Azam D, Guilloux Y, Prévost E, Marchand F (2024). Phenology and biological traits of migrating eels sampled by trapping in the survey in the Scorff river (France). Version 1.4. Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE). Occurrence dataset. https://ipt.gbif.fr/resource?r=inra_ang_scorff&v=1.4

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE). 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: 593cb5c7-4636-4e1e-8559-2797c4d94041.  Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF France.

Keywords

Occurrence; silver eel; Eels; population composition; trapping; Occurrence

Contacts

Geographic Coverage

The Scorff, a coastal river in Brittany (France)

Taxonomic Coverage

No Description available

Temporal Coverage

Project Data

The Research Observatory on Diadromous Fish in Coastal Streams (ORE DiaPFC) is a research infrastructure steered by INRAE in partnership with OFB and part of the OFB-INRAE R&D center. It’s focused on the study of the evolution of diadromous fish populations under the influence human induced environmental changes that affect these rivers (mainly climate and effects of agriculture). Diadromous species of primary interest are salmon (Salmo salar), trout (Salmo trutta), eel (Anguilla Anguilla), shads (Alosa sp.), and lampreys (Lampetra sp. and Petromyzon marinus). These species are threatened by the consequences of human activities. They are flagship species for the biodiversity of coastal streams. Nowadays, these streams are the main refuges for diadromous fish that have disappeared or dramatically declined on larger rivers. This ERO DiaPFC is a Research Infrastructure based on four coastal streams of the Atlantic and Channel coast of France: the Bresle and the Oir in Normandy, the Scorff in Brittany and the Nivelle in the Pays Basque. These four rivers are equipped with diadromous fish trapping facilities and are thoroughly and continuously surveyed from the mid 1980s. They are twinned with experimental ecology facilities located in Rennes (Brittany) and Saint-Pée-sur-Nivelle (Pays Basque). This set of facilities is complemented by individual-based eco-genetic simulators for in silico experimentation on virtual populations. This ERO DiaPFC is a Research Infrastructure based on four coastal streams of the Atlantic and Channel coast of France: the Bresle and the Oir in Normandy, the Scorff in Brittany and the Nivelle in the Pays Basque. These four rivers are equipped with diadromous fish trapping facilities and are thoroughly and continuously surveyed from the mid 1980s. They are twinned with experimental ecology facilities located in Rennes (Brittany) and Saint-Pée-sur-Nivelle (Pays Basque). This set of facilities is complemented by individual-based eco-genetic simulators for in silico experimentation on virtual populations.

The personnel involved in the project:

Sampling Methods

Silver eels have been monitored by trapping at the Tan Mill, downstream trap operating the whole year and Leslé Mill during less than 2 month. Traps configuration allows only partial capture depending on the flow.

Method step description:

1. Silver eels have been monitored since 1994 by trapping at the Tan Mill, downstream trap operating the whole year. Trap configuration allows only partial capture depending on the flow. A second trap at Leslé Mill installed for smolt trapping (april- may) allows the accidental capture of a few eels.

Additional Metadata