seanoe:46838 MORANDEAU Gilles Ifremer, France 2025-10-28 ISO 19115:2003/19139 1.0 Diadromous species sampling in Adour river-France 2016-11-15 2025-10-28 Morandeau Gilles, Caill-Milly Nathalie, Sanchez Florence, Lissardy Muriel, de Casamajor Marie-Noelle, Prouzet Patrick (2016). Diadromous species sampling in Adour river-France. SEANOE. https://doi.org/10.17882/46838 Data were collected by the Laboratoire de Ressources Halieutiques d'Aquitaine (Ifremer). The observations were carried out between April 1992 and July 2006. Observations and measures were made on board commercial vessels, practicing on Adour River generally in springtime and in summer. Sampling of catches took place on the river between March and July; The researchers took scales, a blood sample, took measurements of length and weight on the fish caught by the fishermen during the observed fishing trips. Sampling was of sampling-by-opportunity type. The driftnet is an emblematic and very old métier in this area, targeting different species as atlantic salmon (Salmo salar), sea trout (Salmo trutta), sea Lamprey (Pétromyzon marinus) and also allis shad (Alosa alosa). This activity is framed by particular regulation as quota of fishing days and licenses. Between 15 and 20 costal boats practice this métier during the year and the fleet characteristics are homogenous. The boats put the net in the water (around 100 m long) and let it drift with the surface current (downstream) while the tide is rising; the fish swimming upstream the river are then trapped in the water column. Different meshes can be used. MORANDEAU Gilles Ifremer, France CAILL-MILLY Nathalie Ifremer, France SANCHEZ Florence Ifremer, France LISSARDY Muriel Ifremer, France DE CASAMAJOR Marie-Noelle Ifremer, France PROUZET Patrick Ifremer, France SEANOE https://www.seanoe.org/data/00357/46838/illustration.gif Sampling Adour Diadromous Driftnet Fishing Boats Biological oceanography Fish ODATIS aggregation parameters and Essential Variable names 2025-07-29 geonetwork.thesaurus.external.theme.NVS.OD1 Biological oceanography SeaDataNet Parameter Disciplines 2025-07-29 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC-ND (Creative Commons - Attribution, No commercial usage, No modification) It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. Ifremer can't be held responsible for the results and the use made of it. The user agrees that there will be no commercial use of the Data or products and documents derived there from. oceans -1.581327 -1.032011 43.457284 43.716904 1992-04-01 2006-07-31 CSV PDF https://www.seanoe.org/data/00357/46838/data/46717.csv WWW:DOWNLOAD-1.0-link--download Raw data https://www.seanoe.org/data/00357/46838/data/46721.pdf WWW:DOWNLOAD-1.0-link--download https://doi.org/10.17882/46838 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00357/46838/ rel-canonical Seanoe