Phenology and biological traits of migrating salmon (Salmo salar) sampled by trapping in the survey in the Oir river (France)
Citation
Marchand F, Azam D, Delanoë R, Destouches J, Tremblay J, Baglinière J, Nevoux M, Prévost E (2020). Phenology and biological traits of migrating salmon (Salmo salar) sampled by trapping in the survey in the Oir river (France). Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE). Occurrence dataset https://doi.org/10.15468/k6euut accessed via GBIF.org on 2022-01-28.Description
Since 1984, monitoring has been carried out to observe migration phenology and quantify the abundance of migratory salmon in the Oir basin. In the downstream part of the Oir River, a trapping system controls salmon migration by means of 2 traps, one for the descending fish and the other for the ascending fish. On this occasion, biometric characteristics are developed to characterize the population in order to feed this data set.Purpose
Monitoring of salmon migration.Sampling Description
Study Extent
Oir river : Latitude ranges from 48.6840 to 48.5985; longitude ranges from -1.2949 to -1. 0994. The Oir River is located on the southern edge of Normandy. It is a tributary of the Sélune, a coastal river that flows into the Bay of Mont Saint-Michel. The Oir is 21 km long and has a mean gradient of 1.1%. Annual mean discharge is 1.1 m3/s and the drainage basin area is 85.4 km2, which is dominated by sedimentary schist and metamorphic hornfels with granite inclusions. Agriculture is the main human activity and land use. Migratory fish cannot access the upper Sélune because a dam located 15 km from the sea blocks them. The Oir, with a 16 km long section accessible to Atlantic salmon, is the main spawning ground and the most productive tributary of the Sélune hydrographic network. The migratory fish monitoring station has been in operation since 1983 (GPS coordinates Lambert II extended: E 333834 - N 2409347). It is located on the entrance canal of the Cerisel mill and has two up and down trapping systems. It is located downstream of the Oir about 1.5 km from its confluence with the Sélune. Functional all year round, they allow to follow the migration of salmon.Sampling
The traps are surveyed in the morning every day and several times a day during periods of high migration throughout the year. Biometric measurement of the fish are recorded after their anesthesia with benzocaïne. The fish length is measured from the tip of the mouth to the fork of the caudal fin (1 millimeter precision). Fish are then weighed (0.2 g precision for smolts and 0.5 g for adults). Sex is determined on the basis of phenological criteria and maturity status is assessed by a gentle pressure on the belly that allows to get sperm in mature males. All the fish sampled are then released.Method steps
- The migratory fish monitoring station has been in operation since 1983. Adults and smolts salmon are monitored by means of 2 traps, one for the descending fish and the other for the ascending fish. Salmon are monitored by trapping at the Cerisel Mill, both traps operating the whole year. Trap configuration allows only partial capture depending on the flow which requires to estimate the effectiveness of the traps.
Additional info
This data set is intended to be updated annuallyTaxonomic Coverages
-
Salmo salarcommon name: Atlantique Salmon rank: species
Geographic Coverages
Coastal river in Normandy (France) http://services.sandre.eaufrance.fr/Courdo/Fiche/client/fiche_courdo.php?CdSandre=I9280600
Bibliographic Citations
- Bagliniere, J, F Marchand, et V Vauclin. « Interannual changes in recruitment of the Atlantic salmon () population in the River Oir (Lower Normandy, France): relationships with spawners and in-stream habitat ». ICES Journal of Marine Science 62, nᵒ 4 (juin 2005): 695‑707. https://doi.org/10.1016/j.icesjms.2005.02.008. -
- Otero, Jaime, Jan Henning L’Abée-Lund, Ted Castro-Santos, Kjell Leonardsson, Geir O. Storvik, Bror Jonsson, Brian Dempson, et al. « Basin-Scale Phenology and Effects of Climate Variability on Global Timing of Initial Seaward Migration of Atlantic Salmon ( Salmo Salar ) ». Global Change Biology 20, no 1 (janvier 2014): 61‑75. https://doi.org/10.1111/gcb.12363. -
- Legrand, Marion, Cédric Briand, Laëtitia Buisson, Gwenaël Artur, Didier Azam, Aurore Baisez, David Barracou, et al. « Contrasting trends between species and catchments in diadromous fish counts over the last 30 years in France ». Knowledge & Management of Aquatic Ecosystems, no 421 (2020): 7. https://doi.org/10.1051/kmae/2019046. -
Contacts
Frédéric Marchandoriginator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: frederic.marchand@inrae.fr
Didier Azam
originator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: Didier.Azam@inrae.fr
Richard Delanoë
originator
position: Researcher
OFB, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, F-35042, Rennes, France
Le moulin de Cerisel
Ducey
50220
FR
Telephone: 0688155198
email: richard.delanoe@ofb.gouv.fr
Jean-Pierre Destouches
originator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: Jean-Pierre.Destouches@inrae.fr
Julien Tremblay
originator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: Julien.Tremblay@inrae.fr
Jean-Luc Baglinière
originator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485447
email: Jean-Luc.Bagliniere@inrae.fr
Marie Nevoux
originator
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485235
email: Marie.Nevoux@inrae.fr
Etienne Prévost
originator
position: Researcher
Université de Pau et des Pays de l’Adour, e2s-UPPA, INRAE, OFB, Agrocampus-Ouest, ECOBIOP, Pôle pour la gestion des migrateurs amphihalins dans leur environnement, Saint-Pée-sur-Nivelle, France
Aquapôle - Ibarron
St-Pée-sur-Nivelle
64310
FR
Telephone: +33559515983
email: Etienne.Prevost@inrae.fr
Frédéric Marchand
metadata author
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: frederic.marchand@inrae.fr
Nadine Herrard
programmer
position: Programmer
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: Nadine.Herrard@inrae.fr
GBIF France
distributor
position: IT support
GBIF France
MNHN Geologie CP48, 43 rue Buffon
Paris
75005
FR
Telephone: +33143798065
email: connexion@gbif.fr
homepage: http://www.gbif.fr
Frédéric Marchand
administrative point of contact
position: Researcher
INRAE, Pole OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, U3E, F-35042, Rennes, France.
65 rue de St Brieuc, CS 84215
Rennes
35042
FR
Telephone: +33 223485786
email: frederic.marchand@inrae.fr