Phenology and biological traits of adult migrating atlantic salmon (Salmo salar) sampled by trapping in the survey in the Nivelle river (France) 					

Frédéric Lange1, Jacques Dumas1, Jacques Rives1, Jean-Christophe Aymes1, Etienne Prévost1, Frédéric Marchand2, Nadine Herrard2, GBIF France3

1 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, 64310, St-Pée-sur-Nivelle, France; 2 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, 35042, Rennes, France; 3 GBIF France, MNHN Geologie CP48, 43 rue Buffon, 75005, Paris, France

Corresponding author(s): Frédéric Lange (Frederic.Lange@inrae.fr)Jacques DumasJacques Rives (Jacques.Rives@inrae.fr)Jean-Christophe Aymes (jean-christophe.aymes@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.

Abstract

Since 1984, monitoring has been carried out to observe migration phenology and quantify the abundance of migratory adults atlantic salmon in Nivelle basin. A trapping system controls adults salmon migration by means of 2 traps, one in the downstream part and an other upstream to estimate the effectiveness. On this occasion, biometric characteristics are developed to characterize the population in order to feed this data set.					

Keywords: Occurrence, Observation, Population density, salmo salar, phenology

General description

Purpose: Monitoring of adult migrating atlantic salmon (Salmo salar) in the Nivelle river 
Additional information: This data set is intended to be updated annually.					

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 : French National Institute for Agricultural, Food en Environment Research - OFB : French Office for Biodiversity.
Study area descriptions/descriptor: ERO DiaPFC is a Research Infrastructure based on four coastal streams of the Atlantic and Channel coast of France: the Bresle and the Bresle and 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=inrae_nivelle_ps

Taxonomic coverage

Taxonomic ranks
Species: Salmo salar (Linnaeus, 1758)
Common names: Atlantique Salmon

Spatial coverage

General spatial coverage: The Nivelle river in Basque Country (France). http://services.sandre.eaufrance.fr/Courdo/Fiche/client/fiche_courdo.php?CdSandre=S52-0400		

Coordinates: 43°14'24''N and 43°23'24''N Latitude; 1°40'12''W and 1°28'48''W Longitude 

Temporal coverage: November 8, 1983 - December 20, 2019

Natural collections description

Collection name: Colisa - Collection of Ichtyological Samples
Collection identifier: https://colisa.fr/
Specimen preservation method: Dried
Specimen preservation method: No treatment

Methods

Method step description: Adult samon have been monitored since 1984 by trapping at Uxondoa trap in the Lower Nivelle operating the whole year. Trap configuration allows only partial capture depending on the flow. A second upstream trap at olha in the upper Nivelle (since 1992) allows to estimate the effectiveness.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), sexed 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.
Study extent description: Nivelle river, CdSandre=S52-0400 Latitude between 43.2426 and 43.3912; longitude between -1.4799 and -1.6694 Source latitude and longitude : 43.2173 -1.5231 Last confluence point latitude and longitude : 43.3854 -1.6639 The Nivelle is a 39 km long coastal stream of Pays Basque. It has its source in Spain and flows into the Bay of Biscay at Saint-Jean-de-Luz. Its drainage basin has a surface area of 238 km2, and is dominated by marly-calcareous formations. It is essentially agro-pastoral with more than 50% of the land area made of moors (Dumas, 2003). The oceanic climate, mild and wet (1700 mm year-1 in St-Pe´e-sur-Nivelle), provides a mean annual discharge of 5.4m3 s"1 downstream from the confluence of the main tributary, the Lurgorrieta, and 9m3 s-1 at the mouth. The water, neutral to slightly alkaline, is of good quality upstream from Saint-Pée-sur-Nivelle, but deteriorates downstream.
Sampling description: The Uxondoa and Olha traps are in continuous operation from March to January, except during periods of high flooding. The traps are checked at least once a day.

Datasets

Dataset description
Object name: Darwin Core Archive Phenology and biological traits of adult migrating atlantic salmon (Salmo salar) sampled by trapping in the survey in the Nivelle river (France) 					
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: http://ipt.gbif.fr/archive.do?r=inrae_nivelle_ps
Publication date of data: 2021-03-29
Language: English
Licences of use: Creative Commons Attribution (CC-BY) 4.0 License

Metadata language: English
Date of metadata creation: 2021-03-24
Hierarchy level: Dataset