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

Frédéric Marchand1, Didier Azam2, Richard Delanoë3, Jean-Pierre Destouches2, Julien Tremblay2, Jean-Luc Baglinière4, Marie Nevoux4, Etienne Prévost5, Frédéric Marchand2, Nadine Herrard6, GBIF France7

1 INRAE U3E, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, 65 rue de St Brieuc, CS 84215, 35042, Rennes, France; 2 INRAE U3E, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, 65 rue de St Brieuc, CS 84215, 35042, Rennes; 3 OFB DRAS, INRAE U3E, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, Le moulin de Cerisel, 50220, Ducey; 4 INRAE ESE, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, 65 rue de St Brieuc, CS 84215, 35042, Rennes; 5 INRAE ECOBIOP, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, Aquapôle - Ibarron, 64310, St-Pée-sur-Nivelle; 6 INRAE U3E, Pôle OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, 65 rue de St Brieuc, CS 84215, 35042, Rennes, Finland; 7 GBIF France, 43 rue Buffon, 75005, Paris, France

Corresponding author(s): Frédéric Marchand (frederic.marchand@inrae.fr)Didier Azam (Didier.Azam@inrae.fr)Richard Delanoë (richard.delanoe@ofb.gouv.fr)Jean-Pierre Destouches (Jean-Pierre.Destouches@inrae.fr)Julien Tremblay (Julien.Tremblay@inrae.fr)Jean-Luc Baglinière (Jean-Luc.Bagliniere@inrae.fr)Marie Nevoux (Marie.Nevoux@inrae.fr)Etienne Prévost (Etienne.Prevost@inrae.fr), Frédéric Marchand (frederic.marchand@inrae.fr)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Marchand F, Azam D, Delanoë R, Destouches J, Tremblay J, Baglinière J, Nevoux M, Prévost E (2020): Phenology and biological traits of migrating eels sampled by trapping in the Oir river (France).. v1.3. Institut National de la Recherche Agronomique (INRA). Dataset/Occurrence. http://ipt.gbif.fr/resource?r=inra_ang_oir&v=1.3

Abstract

Since 1984, monitoring has been carried out to observe migration phenology and quantify the abundance of migratory eels in the Oir basin. In the downstream part of the Oir River, a trapping system controls eel migration (a descent trap since 1984 for silver eels that descend and more recently, in 2017 an upstream trap for yellow eels). On this occasion, biometric characteristics are developed to characterize the population in order to feed this data set....

Keywords: Occurrence, population composition, trapping, eels, silver eel, elvers

Project details

Project title: Observatoire de Recherche en Environnement des poissons diadromes sur les Fleuves Côtiers - Ecological Research Observatory on Diadromous Fish in coastal streams
Personnel: Etienne Prévost
Funding: INRAE and OFB
Study area descriptions/descriptor: ERO DiaPFC is a Research Infrastructure based on three 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
Design description: The issue of 'Research Observatory on Diadromes Fish in Coastal Rivers (ORE DiaPFC) is to study the evolution of diadromous fish populations as a result of environmental changes (climate change and changes related to agriculture ) that affect these rivers.

Data published through GBIF: http://ipt.gbif.fr/resource?r=inra_ang_oir

Taxonomic coverage

Taxonomic ranks
Species: Anguilla anguilla (Linnaeus, 1758)

Spatial coverage

General spatial coverage: Coastal river in Normandy (France) http://services.sandre.eaufrance.fr/Courdo/Fiche/client/fiche_courdo.php?CdSandre=I9280600
Coordinates: 48°36'0''N and 48°40'48''N Latitude; 1°17'24''W and 1°6'0''W Longitude 

Temporal coverage: November 29, 1983 - December 19, 2019

Methods

Method step description: 
- . 	Since 2017, trapping of upstream-migrating elvers to the upstream parts of the Oir River has been carried out by using an eel climbing ramp, which provides the eels with a substrate (brushes) that allows them to climb a 40% slope.
- . 	Silver eels have been monitored since 1983 by trapping at the Cerisel Mill, downstream trap operating the whole year. Trap configuration allows only partial capture depending on the flow which requires to estimate the effectiveness of the traps.
Study extent description: Elvers have been monitored since 2017.The trap is surveyed in the morning every day throughout the year on the River Oir, a tributary of the Sélune in Normandy.

Silver eels have been monitored since 1983.The trap is surveyed in the morning every day throughout the year on the River Oir, a tributary of the Sélune in Normandy.
Sampling description: Elvers are monitored by trapping at the Cerisel Mill, upstream trap operating the whole year. Trap configuration allows only partial capture depending on the flow which requires to estimate the effectiveness of the traps

Silver eels have been monitored by trapping at the Cerisel Mill, downstream trap operating the whole year. Trap configuration allows only partial capture depending on the flow which requires to estimate the effectiveness of the traps.

Datasets

Dataset description
Object name: Darwin Core Archive Phenology and biological traits of migrating eels sampled by trapping in the Oir river (France).
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: http://ipt.gbif.fr/archive.do?r=inra_ang_oir
Publication date of data: 2020-02-28
Language: English
Licences of use: Creative Commons Attribution (CC-BY) 4.0 License

Metadata language: English
Date of metadata creation: 2019-10-31
Hierarchy level: Dataset

References
Trancart, T., Acou, A., De Oliveira, E., and Feunteun, E. 2013. Forecasting animal migration using SARIMAX: an efficient means of reducing silver eel mortality caused by turbines. Endangered Species Research, 21: 181–190.