Species and habitats - Echiichthys vipera - All ages - IBTS Multi-annual abundance in January (1980-1990, 1991-2000 , 2001-2010))

Date(s) (Publication)
Custodian(s): CHARM Consortium
Resource provider(s): Franck Coppin
Affiliation(s) 1 : Ifremer
2 : CHARM Consortium
Credit IFREMER
ID CHARM_ECITVIP_IBTS_1980-1990
Abstract Due to data paucity, the interpolated maps were computed using all the data available over three periods : 1980-1990, 1991-2000 and 2001-2010. Biologic data have been expressed in abundance (numbers or density values (nbr/km²)) and always required to be log-transformed using a log10(x+1) transformation.
Keywords Species data set, CHARM, Petite vive, Lesser weever, Répartition des espèces, ressource halieutique
Lineage The survey extends from the Eastern English Channel to the south of the North Sea, which corresponds to ICES divisions VIId and IVc. The study area is divided into rectangles of 15¿ latitude and 15¿ longitude using a systematic sampling strategy. The sampling gear is a high opening bottom trawl well adapted for catching demersal species, with a 10 mm mesh size (side knot) for catching juveniles. This sampling gear is polyvalent and is well adapted to the varying seabed types encountered in the
Utilisation research-only
Temporal Extent 1989-01-01 - 2007-12-31