Abundances and biological traits of the juveniles lamprey sampled in the survey of lamprey abundance Indice on the Scorff river (France)

Latest version published by Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE) on May 12, 2021 Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE)

A survey started in 2012 is conducted every year in autumn to quantify the abundance of juvenile lamprey in the Scorff river in Britanny. This method uses a rectangular dredge to sample a constant and small surface of sediments in soft substrate areas. It targets all lamprey species. The data consist of abundance indices and biological traits measured on the fish sampled:length and weight. The survey is carried out under the Research Observatory on Diadromes Fishes in Coastal Streamss (ERO DiaPFC) program. The data are stored in the database of the ERO. They are used to develop predictive models and tools for providing scientific advice to improve the management of this heritage species.

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 1,154 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.

  • Occurrence (core)
    1154
  • MeasurementOrFact 
    6924

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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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: f10407e8-e66a-4c11-aa3c-44607b4e7c49.  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; Observation; Population density; population distribution; catch effort; lamprey

Contacts

Who created the resource:

Nicolas Jeannot
Researcher
INRAE U3E, Pôle MIAME OFB-INRAE-L'institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement Moulin des Princes 56620 Pont-Scorff FR +33 297325429
Didier Azam
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 35042 Rennes FR +33 223485786
Yoann Guilloux
Researcher
FDPPMA56 Moulin des Princes Pont-Scorff FR +33 297325429
Etienne Prévost
Researcher
INRAE ECOBIOP, Pôle MIAME OFB-INRAE-Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement Aquapôle - Ibarron 64310 St-Pée-sur-Nivelle +33559515984

Who can answer questions about the resource:

Frédéric Marchand
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 35042 Rennes FR +33 223485786

Who filled in the metadata:

Nicolas Jeannot
Researcher
INRAE U3E, Pôle MIAME OFB-INRAE-L'institut Agro-UPPA pour la gestion des migrateurs amphihalins dans leur environnement Moulin des Princes 35042 Pont-Scorff FR +33 297325429

Who else was associated with the resource:

Programmer
Nadine Herrard
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 35042 Rennes FR +33 223485786
Distributor
GBIF France
IT support
GBIF France MNHN Geologie CP48, 43 rue Buffon 75005 Paris FR +33143798065
http://www.gbif.fr

Geographic Coverage

The Scorff river in Britanny (France). http://services.sandre.eaufrance.fr/Courdo/Fiche/client/fiche_courdo.php?CdSandre=J5--0220

Bounding Coordinates South West [47.77, -3.34], North East [48.17, -3.25]

Taxonomic Coverage

No Description available

Species  Lampetra planeri (Lamproie de planer),  Petromyzon marinus (Lamproie marine)

Temporal Coverage

Start Date / End Date 2012-06-01 / 2020-08-31

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.

Title Observatoire de Recherche en Environnement des poissons diadromes sur les Fleuves Côtiers - Ecological Research Observatory on Diadromous Fish in coastal streams
Funding - INRAE : French National Institute for Agricultural, Food en Environment Research - OFB : French Office for Biodiversity
Study Area Description 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.

The personnel involved in the project:

Principal Investigator
Etienne Prévost

Sampling Methods

In the Scorff, sampling is conducted at 2 sites spread along the mainstream. The sites are visited once a year in autumn (end of August to early September).

Study Extent Scorff river, CdSandre=J5--0220 Latitude between 47.7718 and 48.1682; longitude between -3.2497 and -3.3404 Source latitude and longitude : 48.14 -3.283 Last confluence point latitude and longitude : 47.7371 -3.3474 The Scorff river is a small coastal stream of Southern Brittany (France). The main river is 78,6 Km long including 15 km of estuary. The mean gradient is 3,6%, the annual mean discharge is 5 m3 s- and the drainage basin area is 480 km2. Human activities and land use are mainly from agriculture, with some areas made moors and forests. Atlantic salmon colonization is essentially restricted to the main river over a 50 km stretch starting at the head of tide. Reproduction of Atlantic salmon takes place mostly in the main river (Bagliniere et al., 1979).The Scorff has only three larger tributaries. Up to recent years, their colonization by Atlantic salmon was restricted their down-stream end due to mill-dams.

Method step description:

  1. From Lasne 2019 : The method is derived from Surber stream bottom sampler for. The frame is pushed into the substrate (maximum 15 cm deep, depending on soft substrate layer thickness) and the operator uses hands, protected by gloves, to gently dredge the substrate into the net until the substratum is removed. Thereafter, remaining sediments and larvae are dipnetted and transferred into a large sieve (1 mm mesh, about 0.4–0.5 m2). For better efficiency, the dipnet should be almost as wide as the bottom sampler. The net of the bottom sampler is removed and the dredged sediment is transferred into the sieve to be cleaned out and to sort out the larvae. 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) 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 in their original site.

Collection Data

Collection Name Colisa - Collection of Ichtyological Samples
Collection Identifier https://colisa.fr/
Specimen preservation methods Dried,  No treatment

Bibliographic Citations

  1. Lasne, E., M.-R. Sabatié, J. Tremblay, L. Beaulaton, et J.-M. Roussel. « A new sampling technique for larval lamprey population assessment in small river catchments ». Fisheries Research 106, nᵒ 1 (octobre 2010): 22‑26. https://doi.org/10.1016/j.fishres.2010.06.011.

Additional Metadata

This data set is intended to be updated annually

Purpose Monitoring of juvenile recruitment in lamprey on the Scorff river
Alternative Identifiers f10407e8-e66a-4c11-aa3c-44607b4e7c49
http://ipt.gbif.fr/resource?r=inrae_scorff_ial