Description of data in files "hauls1973_1976_1987-2019.csv", "skatesCatches1973_1976_1987-2019.csv", "FR_EVHOEsurveyStrata.csv", "FR_EVHOEsurveyStrata_Polyset.csv" These file include haul information for surveys carried out in the Bay of Biscay in 1973, 1976 and from 1987 to 2019 and catches of Rajiformes species. Haul data from 1997 to 2019 are data from the EVHOE survey, carried out according to https://www.ices.dk/data/Documents/DATRAS%20Manuals/EVHOEManual.pdf. Surveys in 1973 and 1976 were carried out with the same trawl (GOV 36/47) and protocole but with a larger number of hauls in the Bay of Biscay. From 1997, the time-series of EVHOE data is also available in DATRAS format (https://www.ices.dk/data/data-portals/Pages/DATRAS.aspx). Surveys from 1973 to 1995 were carried out on R/V Thalassa 1 and surveys from 1996 were carried out with Thalassa File: hauls1973_1976_1987-2019.csv Survey: survey name denoted as "THAL1973" and "THAL1976" for in 1976 and 1976 and "EVHOE" for 1987-2019 Year: year (4 digits) Haul: haul code. In 1973 and 1976 the code starts with "T1" which stands for R/V Thalassa 1, followed by one letter and 3 digits From 1987 to 1995 the code starts with "T1" which stands for R/V Thalassa 1, followed by one letter and 3 digits From 1996 to 2019, the code includes one letter and four digits Month: month (2 digits) Stratum: code of the stratum SweptArea: area swept by the trawl between wing ends in km² Latitude: latitude of the mid-point of the haul Longitude: longitude of the mid-point of the haul MeanDepth: mean depth of the haul File: skatesCatches1973_1976_1987-2019.csv Catches of all Rajiformes species caught. For each haul the number and weight (kg) of every species caught is given. File: FR_EVHOEsurveyStrata.csv Area (km²) of sampling strata used in the EVHOE survey File: FR_EVHOEsurveyStrata_Polyset.csv Polygons of the survey strata. The file is a polyset as defined in the PBSmapping R package, see https://CRAN.R-project.org/package=PBSmapping The package includes fonctions to transform this format into a shapefile.